Proteins comprise what percentage of our body cell mass?
Answers
The percentage of proteins in our body cell mass varies, but on average, proteins make up about 15% of our body cell mass. Proteins are vital for the structure, function, and regulation of our cells.
1. Proteins are macromolecules made up of amino acids.
2. Our body cells contain various types of proteins that serve different functions.
3. Proteins are involved in cell structure, providing support and strength to cells. For example, collagen is a protein that forms the structural framework of our skin, tendons, and bones.
4. Proteins also play a crucial role in cell signaling and communication. They act as messengers, transmitting signals between cells and coordinating various cellular processes.
5. Enzymes, a type of protein, are responsible for speeding up chemical reactions in our cells. They act as catalysts and are involved in numerous metabolic processes.
6. Proteins are involved in transportation, helping to carry molecules and substances across cell membranes. For instance, hemoglobin, a protein in red blood cells, transports oxygen throughout our body.
7. Antibodies, another type of protein, are essential for our immune system. They recognize and neutralize foreign substances, such as bacteria or viruses, protecting us from infections.
8. Proteins are also involved in energy production. In situations where our body needs energy, proteins can be broken down into amino acids, which can be used as a fuel source.
Overall, proteins are fundamental components of our body cell mass, contributing to various vital functions. While the average percentage of proteins in our body cell mass is around 15%, it's important to note that this can vary depending on factors such as age, gender, and overall health
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Related Questions
The vegetative (nutritionally active) bodies of most fungi are ________.
I. composed of hyphae
II. referred to as a mycelium
III. usually underground
Answers
The vegetative (nutritionally active) bodies of most fungi are composed of hyphae and are referred to as mycelium, so the correct option is 2.
This mycelium is usually underground, where it absorbs nutrients from the surrounding soil or organic matter. As the mycelium grows, it can form large networks that span great distances.
These networks are responsible for the movement of nutrients and water within the soil as well as the decomposition of dead organic matter. Fungal mycelia can be incredibly complex and have been found to play important roles in many ecological processes, from nutrient cycling to plant growth and disease resistance.
Overall, the mycelium is a critical component of fungal biology, allowing these organisms to thrive in a wide range of environments.
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Identify factors that promote or inhibit fossilization.Promote Inhibitput statements below under inhibit or promotelow levels of environmental oxygenbacteria presentaquatic environmentrapid burialscavengers absentsun, wind, and rain
Answers
Factors that promote fossilization are a. Low levels of environmental oxygen, c. Aquatic environment, d. Rapid burial, e. Scavengers are absent and Factors that inhibit fossilization are b. Bacteria present and f. Sun, wind, and rain
Factors that promote fossilization include:
a. Low levels of environmental oxygen: A low-oxygen environment slows down the decomposition process, allowing the remains to be preserved for a longer period before being fossilized.
c. Aquatic environment: Aquatic environments, such as lakes and oceans, are more conducive to fossilization. Sediments in these environments can quickly cover the remains, providing protection from disturbances and promoting preservation.
d. Rapid burial: Quick burial by sediments or other materials helps protect the remains from scavengers, weather, and other destructive forces. Rapid burial increases the chances of preservation and eventual fossilization.
e. Scavengers absent: A lack of scavengers in the area allows the remains to be undisturbed, increasing the likelihood of preservation and fossilization.
Factors that inhibit fossilization include:
b. Bacteria present: Bacteria and other microorganisms contribute to the decomposition of organic remains. Their presence can hinder fossilization as they break down the remains before they have a chance to become fossilized.
f. Sun, wind, and rain: Exposure to the elements, such as sunlight, wind, and rain, can speed up the decomposition process and erode the remains. This decreases the chances of preservation and fossilization.
In summary, factors that promote fossilization are low levels of environmental oxygen, aquatic environments, rapid burial, and the absence of scavengers. Factors that inhibit fossilization include the presence of bacteria and exposure to the elements, such as sun, wind, and rain.
The question was Incomplete, Find the full content below :
Identify factors that promote or inhibit fossilization.
Promote Inhibit
Put statements below under inhibit or promote
a. low levels of environmental oxygen
b. bacteria present
c. aquatic environment
d. rapid burial
e. scavengers absent
f. sun, wind, and rain
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At one time, scientists believed that the world's continents were static.
Today scientists have shown that continents are in constant motion.
Which statement is best supported by this discovery?
O Science is a body of knowledge based on the work of well-known scientists.
O Science is a body of knowledge that is subject to change based on data
O A theory becomes a law when there are data to support the theory
O A scientific theory is the correct answer to a problem
Answers
Science is a body of knowledge that is subject to change based on data, which is the correct statement.
What exactly is science as a body of knowledge?
Science can be thought of as both a body of knowledge of what we have already discovered and the process of acquiring new knowledge via observation and experimentation testing and hypothesizing.
Geologists rejected Alfred Wegener's ideas on static continents in 1912 because he could not explain what forces could move the continents. Almost 50 years later, Harry Hess confirmed Wegener's ideas by using evidence of seafloor spreading to explain what moved continents.
Therefore, the above theory explains why science is subject to change based on data.
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Match the levels of the Red List of Threatened Species to their description.
ample population
population of fewer than 10,000 mature individuals
population of fewer than 50 mature individuals
population of fewer than 250 mature individuals
vulnerable
arrowRight
endangered
arrowRight
least concern
arrowRight
critically endangered
arrowRight
Answers
The levels of the Red List of Threatened Species:
least concern - ample populationVulnerable - population of fewer than 10,000 mature individualsEndangered - population of fewer than 250 mature individualscritically endangered - population of fewer than 50 mature individualsWhat is a population of organisms?
A population of organisms is the total number of species of organisms of the same kind found in a given habitat.
The criteria for the classification of threatened and non-threatened species according to International Union for Conservation of Nature and Natural Resources (IUCR) red list is as follows:
least concern - ample populationVulnerable - population of fewer than 10,000 mature individualsEndangered - population of fewer than 250 mature individualscritically endangered - population of fewer than 50 mature individualsIn conclusion, the number of individuals in a population of organisms determines whether it is classified as a threatened species or not.
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What is responsible for reassigning pregnant servicewomen who are medically evacuated
Answers
Reassigning pregnant servicewomen who are medically evacuated is typically the responsibility of military medical authorities, who prioritize the health and safety of both the mother and the unborn child.
Depending on the nature and severity of the medical condition that led to the evacuation, servicewomen may be reassigned to duty stations that are better equipped to provide the necessary medical care and support. This may involve temporarily or permanently reassigning them to positions that do not involve combat or other physically demanding activities, or that allow for more frequent medical check-ups and monitoring.
The specific reassignment process may vary depending on the branch of the military and the individual circumstances of the servicewoman in question.
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what is the answer tho just asking?
Answers
Answer:
I don't see any thing lol
Which structure controls the movement of tube feet?
Answers
A student want to add a arrow between the reaction shown to Medel how the two systems work together to cycle carbon among Earth systems.
Answers
The student should add an arrow from the product side of photosynthesis to the reactant side of cellular respiration.
What is the direction of flow of carbon between the processes of photosynthesis and cellular respiration?
Cellular respiration is the process by which large sugar molecule are broken down to release energy and carbon dioxide.
Photosynthesis is the process by which sugar molecules are made from carbon dioxide and water using the energy of sunlight.
Therefore, the student should add an arrow from the product side of photosynthesis to the reactant side of cellular respiration.
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A type of energy storage molecule made of many glucose molecules connected together is called: ________
Answers
When glucose molecules are bonded together, they form the type of energy storage molecule termed Glycogen.
Animals, fungi, and bacteria all use the multibranched polysaccharide of glucose known as glycogen to store energy. This glycogen is decomposed into fragments to release glucose into the bloodstream when the body requires immediate energy or cannot obtain the necessary glucose from the diet.
A complex carbohydrate that the body may quickly convert into energy is called glycogen. In the human body, glycogen is kept in the liver and skeletal muscles. In adipose tissue, additional glucose can be metabolized to fat.
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Each group of three mRNA bases specifies a particular
A.nucleic acid.
B. protein.
C.amino acid.
D.gene.
Answers
Answer: C its Amino Acid
Explanation:
Answer:
Amino acids
Explanation:
Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid (hence, it is a triplet code). The mRNA sequence is thus used as a template to assemble—in order—the chain of amino acids that form a protein. Figure 2: The amino acids specified by each mRNA codon.
Metaphase in mitosis is characterized by
Select one:
A. lining up of sister chromatids down the center of the cell
B. separating of the sister chromatids
C. cytokinesis
D. separating of homologous chromosomes
Answers
Answer:
A. lining up of sister chromatids down the center of the cell.
Explanation:
Hope that helps! If not, let me know. I just took Life Science last year, so I still know that kind of stuff... (for now...)tehehe
La Rafflesia arnoldii es una planta tropical con una enorme flor rojo-sangre, que emite calor y despide olor a carne descompuesta. ¿para qué le sirven a esta planta estas adaptaciones?
Answers
Answer:
Rafflesia arnoldii is a tropical plant with a huge blood-red flower, which emits heat and emits the smell of decomposed meat. What use are these adaptations to this plant
Explanation:
The smell is adaptation for pollination.This is because it attracts insects which carry on the process of pollination.
Its possible Endothermy characteristic is for mimicry Its releases heat to attract the pollinators- blowflies.The endothermic mechanism is well pronounced during flora development: which further buttress the fact that this is related to pollination to attract blowflies, and not to thermoregulation.
an example of an energy-requiring reaction is_____, which uses energy from the sun to produce sugars; an example of an energy-releasing reaction is cellular____, which releases the energy in sugars.
Answers
An example of an energy-requiring reaction is_ photosynthesis; which uses energy from the sun to produce sugars; an example of an energy-releasing reaction is cellular respiration which releases the energy in sugars.
Why is photosynthesis important? What is it?In a process known as photosynthesis, plants and trees combine carbon dioxide from the atmosphere with energy from the sun to create the food they require to survive and develop. The trees and plants in forests help to produce oxygen as a consequence of photosynthesis by storing carbon above and below the ground.
What exactly is cellular respiration, and why does it matter?The process by which sugar is broken down in the presence of oxygen in the mitochondria of organisms (animals and plants) to release energy in the form of ATP is known as cellular respiration. Water and carbon dioxide are waste products of this process.
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Do most mammals have adaptations for internal fertilization and internal development of the fetus or internal fertilization and external development of the fetus?
Answers
Answer:
internally
Explanation:
In mammals, fertilization takes place internally in the protected environment of the ampulla of the oviduct, as opposed to external fertilization where sperm and egg meet outside the parent's body (e.g., as in fish, reptiles, amphibians and invertebrates).
what are the the independent and control variables in onion cell and cheek cell experiment
Answers
The Independent Variable is the magnification: either scanning electron, or surface.
The Dependent Variable is the microscope
Controlled Variable: The two types of cells: Onion, and the Cheek Cell
What is control variable?
Anything kept constant or constrained in a research study is referred to as a control variable. Despite not being relevant to the study's objectives, this variable is controlled because it might have an impact on the results.
Separately inserted in the glass slide and covered with a coverslip are a thin layer of onion and cheek cells. Colored dye can be used to stain the cheek cells and onion cell layer. Magnification can be changed by the researcher.
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What happens to the pressure of a gas if the volume of gas is
increased at a constant temperature?
Answers
Answer: If the volume of a gas is increased at a constant temperature, the pressure of the gas decreases.
Explanation:
The relation between variation in volume and variation in pressure of a gas at a constant temperature is given by Boyle's Law which states that: The product of pressure and volume of a mass of a contained gas is constant at a constant temperature.
That is,
Pressure (P) x Volume (V) = constant (k)
[when the temperature (T) is constant; k ≠ 0.]
Or, P = \(\frac{k}{V}\)
That is, pressure varies inversely with volume or an increase in volume at a constant temperature causes a decrease in the pressure of the gas.
Detailed answer:
Gas molecules are always in random motion, and the pressure of a gas is defined as the pressure exerted by these moving gas molecules on the walls of the container as they undergo collisions with the walls of the container. The volume of a gas is defined as the three-dimensional space occupied by all the gas molecules in the container at a particular temperature and pressure. Thus, when the volume increases keeping the temperature constant (thus no change in kinetic energy of the molecules occurs due to temperature), the molecules get more space to move around. Thus the pressure exerted by the molecules on the walls of the container decreases.An unknown sample of metal had a mass of 240. 0 grams. It displaced 30. 0 mL of water when placed into a graduated cylinder. What is the density of the metal?
Answers
The density of the metal will be 8 g/ml when an unknown sample of metal had a mass of 240 gm and is displaced 30 ml of water when placed into graduated cylinder.
What is density and how the density of the metal comes out to be 8 g/ml of unknown sample?Density is the quantity representing the mass of the product per unit volume of the container containing liquid.The units of density varies depending upon the units of mass and volume of the liquid contained.Here by using the simple density = mass/ volume formula we can calculate the density.Given, mass = 240 gm , volume = 30 ml , density = 240/ 30 = 8 g/ ml is the density.Hence the density of the metal is 8 gm/ml of an unknown sample of the metal of mass 240 gm and displaced 30 ml of water into graduated cylinder.To know more about density visit:
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(c) Based on the data, describe the time period during which Chlorella approximates exponential growth. Based on
the data and assuming logistic growth, describe the time period during which the Chlorella population has reached
the carrying capacity of the culture. Based the data, calculate the growth rate per day for the 5-day period with
the greatest growth rate.
Answers
Populations that experience a logistic growth model depend on the density and available resources. A) 5 - 10 days. B) 25 - 30 days. C) 0.27 x 10⁶cells/mL/day
What is the logistic growth model?In a logistic growth model, the population growth depends on density. Natality and mortality depend on the population size, meaning that there is no independence between population growth and population density.
When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate. The population per capita growth rate decreases as population size increases.
The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.
K is a constant that equals population size at the equilibrium point, in which the natality and the mortality rate get qual to each other.
Assuming that the population size is N, when
N<K, the population can still grow. N approximates to K, the population's growth speed decreases. N=K the population reaches equilibrium, N>K, the population must decrease in size because there are not enough resources to maintain that size.The sigmoid curve represents the logistic growth model.
In the example,
Between 0 and 5 days the population remains relatively stableBetween 5 and 10 days Chlorella approximates exponential growth.Between 10 and 20 days Chlorella experiences exponential growth. Between 20 and 25 days the population is near the K and decreases its growth rate.From 25 to 30 days, the population reached the equilibrium point, and got to stabilize.Time period during which Chlorella,
A) approximates exponential growth ⇒ Between 5 and 10 days
Between 10 and 20 days its already exponential growth.
B) has reached the carrying capacity of the culture ⇒ 25 to 30 days
Finally,
C) Growth rate per day for the 5-day period with the greatest growth rate.
First we need to figure out during which period Chlorella experiences the greatest growth rate. To do it, we just need to make the following substraction,
Growth rate per period = final concentration - initial concentration
Period 0-5 ⇒ 0.08 - 0.01 = 0.07Period 5-10 ⇒ 0.55 - 0.08 = 0.47Period 10-15 ⇒ 1.9 - 0.55 = 1.35Period 15-20 ⇒ 2.8 - 1.9 = 0.9Period 20-25 ⇒ 3.2 - 2.8 = 0.4Period 25-30 ⇒ 3.2 - 3.2 = 0Now we know that during the period from 10 to 15 days, the population experienced its greatest growth rate. But this rate is acchieved in 5 days. Now we need to find out the growth rate per day. So all we need to do, is to divide the result of the substraction per 5 days,
1.35 x 10⁶ / 5 days = 0.27 x 10⁶ cells/mL/day
The answer is 0.27 x 10⁶ cells/mL/day
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In sports how do objects change direction .Name 7 ways
Answers
who validated Darwin’s theory of natural selection through his observations of generations of fruit flies
Answers
Thomas Hunt Morgan, an American geneticist, is frequently credited with using fruit flies in his research to experimentally validate the hypothesis of natural selection.
Fruit flies (Drosophila melanogaster) were utilized by Morgan and his Columbia University students to research genetics and inheritance in the early 20th century.
They discovered that some characteristics, including eye color and wing shape, were passed down from one generation to the next and that the frequency of these characteristics fluctuated with time. Additionally, they discovered that some features appeared to be more prevalent in particular populations of fruit flies, which appeared to be the result of natural selection.
These findings served to validate Darwin's theory of natural selection and establish genetics as a legitimate scientific field.
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Darwin's theory of natural selection is scientifically tested and accepted while Lamarck's hypothesis is largely inaccurate. Discuss the key differences between Darwin's theory of natural selection and Lamarck's hypothesis. Specifically discuss what each states about- a) where does variation come from? b) how do individuals in a population vary- are individuals all the same in their traits or variable? c) do individuals change and evolve, or do populations change and evolve? d) is evolution progressive towards perfection, is there perfection in individuals?
Answers
a) Variation: Darwin - Random mutations; Lamarck - Acquired traits.
b) Individual Variation: Darwin - Natural variation; Lamarck - Acquired traits.
c) Change and Evolution: Darwin - Populations change; Lamarck - Individuals change.
d) Evolutionary Progress: Darwin - Adaptation, not perfection; Lamarck - Progressive improvement.
a) Darwin's theory of natural selection explains that variation within a population arises from random mutations and genetic recombination. Lamarck's hypothesis, in contrast, suggests that variation comes from acquired traits influenced by the environment and an organism's needs.
b) According to Darwin, individuals within a population exhibit natural variation, meaning they differ from each other in their traits. Lamarck's hypothesis implies that individuals are not inherently variable but can acquire and pass on acquired traits during their lifetime.
c) Darwin's theory states that individuals themselves do not change or evolve within their lifetime. Instead, populations change over time through natural selection, with individuals possessing different traits. Lamarck's hypothesis suggests that individuals can change and acquire new traits during their lifetime, which can then be inherited by their offspring.
d) Darwin's theory rejects the idea of evolutionary progress towards perfection. It emphasizes that evolution is driven by adaptation to the environment, with populations evolving in response to changing conditions. In contrast, Lamarck's hypothesis implies that evolution is progressive, with organisms becoming more complex and better adapted over time.
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as you are walking down the beach, you see a dead, dry, shriveled-up fish. which layer of your epidermis keeps you from drying out? stratum corneum stratum basale stratum spinosum stratum granulosum
Answers
As we are walking down the beach, we see a dead, dry, shriveled-up fish. stratum corneum layer of the epidermis keeps us from drying out. So, the correct option is A.
What is Stratum corneum layer?The stratum corneum is defined as the outermost layer of the epidermis that marks the final stage of keratinocyte maturation and development. Keratinocytes present at the basal layer of the epidermis are proliferative, and as cells mature the epidermis, they gradually lose proliferative capacity and undergo programmed destruction.
When we are walking down the beach, we see a dead, dry, shriveled-up fish. which is due to the stratum corneum layer of the epidermis keeps us from drying out.
So, the correct option is A.
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Your question is incomplete, most probably the complete question is:
As you are walking down the beach, you see a dead, dry, shriveled-up fish. which layer of your epidermis keeps you from drying out?
stratum corneum stratum basale stratum spinosum stratum granulosumA change is speed is called
Answers
Answer:
Im pretty sure this is acceleration
Answer: velocity
Explanation:A change in speed is a change in velocity
Who discovered penicillin and how ?
Answers
Answer:
In 1928, at St. Mary's Hospital, London, Alexander Fleming discovered penicillin. This discovery led to the introduction of antibiotics that greatly reduced the number of deaths from infection.
The discovery of penicillin was actually a mistake!
Fleming obtained an extract from the mold, naming its active agent penicillin. He determined that penicillin had an antibacterial effect on staphylococci and other gram-positive pathogens.
Explanation:
compare and contrast the lytic and lysogenic life cycles of viruses. how does the virus reproduce in each of these life cycles? what happens to the host cell in each of these life cycles?
Answers
Answer:
The lytic cycle involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell. The lysogenic cycle involves the incorporation of the viral genome into the host cell genome, infecting it from within.
Explanation:
Explain how sex-linked, codominant and incomplete dominant traits are passed on to offspring.
Answers
Sex-linked traits are genes carried on the sex chromosomes, the X and the Y chromosome. Only males carry the Y chromosome, and therefore all genes on the Y chromosome are passed down to the son. Women carry two X chromosomes; therefore, sex-linked traits can be passed on from both the mother and the father.
Examples of sex-linked traits include red-green colour blindness and haemophilia.
In codominance, both alleles are expressed in the phenotype of heterozygous offspring. The human ABO blood group is an example of codominance.
There are three alleles for the ABO gene: IA, IB, and I (i is recessive to both IA and IB). If an individual is heterozygous for both the IA and IB alleles, they will express both A and B antigens on their red blood cells. If they are homozygous for either IA or IB, they will express only one antigen on their red blood cells.
Incomplete dominance occurs when neither allele is dominant nor recessive, but instead, the phenotype is a blend of both. An example of incomplete dominance is the snapdragon flower, which has a red flower and a white flower. When the red flower is crossed with the white flower, the resulting offspring have pink flowers, which is a blend of red and white. The genotype for pink flowers is Rr, where R represents the red allele, and r represents the white allele.
When two pink flowers are crossed, their offspring will have a ratio of 1:2:1 of red, pink, and white flowers.
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Why can’t the mule reproduce ??
Will report if not relevant
I will give brainliest answer if correct
Answers
Answer:
its being called a miracle because mules aren't supposed to give birth haha, they're sterile, they can't make sperm or eggs because their chromosomes don't match up well, and coz of chromosomes number.
Explanation:
for example they have 31 and horses have 32 pairs of chromosomes so they cant match with anythin
Color blindness is a recessive sex-linked human trait. If a color-blind mother
and a father with normal color vision have a son, what will the son's genotype
be?
A. XNY
B. XnXN
C. XnXN
D. XnY
Answers
pharmacodynamics involves which of the following? a) information about main mechanisms of drug absorption b) information about unwanted effects c) information about biological barriers d) information about excretion of a drug from the organism
Answers
Pharmacodynamics involves information about unwanted effects.
Pharmacodynamics is the study of the biochemical, physiological, and molecular effects of medications on the body and involves receptor binding (including receptor sensitivity), post-receptor effects, and chemical interactions. The phrase "what a drug does to the body" is commonly used to describe it.
The relationship between dose and response, or the effects of the medicine, is better understood by combining pharmacodynamics with pharmacokinetics (what the body does to a drug or the fate of a drug within the body).
The pharmacologic response is based on how well the medicine binds to its intended target. The amount of the medicine present at the receptor site affects how the drug works.
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What are some Characteristics of a ladybug before metamorphosis
Answers
Answer:
.
Explanation:
Ladybug larvae look somewhat like tiny alligators, they have elongated bodies and bumpy exoskeletons. Though in many species, the ladybug larvae are black with brightly colored spots or bands.