One primary function of the cell membrane is
regulating the flow of simple sugars into or out of the cell
synthesizing substances by breaking down cell organelles
storing carbohydrates, water, and starches for future use
digesting carbohydrates, fats, and protein
Answers
Answer:
In the 1920s, two conflicting newspaper headlines called attention to a mysterious ... 35 One primary function of the cell membrane is (1) regulating the flow of simple ... substances by breaking down cell organelles (3) storing carbohydrates, water, and starches for future use (4) digesting carbohydrates, fats, and protein
Explanation:
Related Questions
An engineer has developed a new hearing aid that restores hearing to the deaf. the hearing aid is quite small, but many users report that it leads to ear pain because it rubs the outside of the ear. which tradeoff is most likely to outweigh all of the potential negatives associated with wearing this hearing aid?
Answers
The restoration of hearing for the deaf is the tradeoff that is most likely to outweigh all of the possible drawbacks of using a hearing aid.
The capacity to restore hearing to those who are deaf may have a profoundly positive influence on their quality of life, despite the pain that the rubbing of the hearing aid on the exterior of the ear causes. When their hearing is restored, they may connect socially, appreciate music, and take part in a variety of activities that need auditory information. They can also speak more effectively. For many people, it is a worthy trade-off since the transformational advantages of recovering the ability to hear are likely to outweigh the pain brought on by the physical nature of the hearing aid.
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What was the most important invention to marine science?
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.Final protein refinements, storage, and packaging occur ________.
in the cytoplasm
in the rough endoplasmic reticulum
in the smooth endoplasmic reticulum
in the Golgi apparatus
Answers
Final protein refinements, storage, and packaging occur in the Golgi apparatus. So the correct option is d.
The Golgi apparatus is a cellular organelle that is responsible for the processing, sorting, and packaging of proteins and lipids that are synthesized in the cell. After proteins are synthesized on ribosomes, they are transported to the Golgi apparatus in vesicles from the endoplasmic reticulum.
Within the Golgi apparatus, proteins undergo final modifications, such as the addition of carbohydrate groups, and are sorted and packaged into vesicles for transport to their final destinations. The Golgi apparatus also plays a role in the storage of proteins and lipids, and it is involved in the formation of lysosomes, which are organelles that break down cellular waste materials.
While the rough endoplasmic reticulum (RER) is involved in the synthesis of proteins, it is not typically involved in their final refinement or packaging. The smooth endoplasmic reticulum (SER) is involved in lipid synthesis and detoxification of drugs and toxins, but it does not play a major role in protein processing or packaging.
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Which of the following is NOT needed for DNA replication?
Answers
Answer:
Ribosomes
Explanation:
Ribosomes are used in cells for growth and repair they are held in the cytoplasm of the cell not the nucleus therefore they are never in contact with dna
The endosymbiotic theory explains how organelles inside eukaryotic cells are descended from ancient _____
Unicellular prokaryotic organisms
Unicellular eukaryotic organisms
Multicellular prokaryotic organisms
Multicellular eukaryotic organisms
Answers
The endosymbiotic theory explains how organelles inside eukaryotic cells are descended from ancient unicellular prokaryotic organisms.
What is the Endosymbiotic Theory?The endosymbiotic theory, often known as symbiogenesis, is the idea that the first eukaryotic cells evolved through a symbiotic relationship between two or more prokaryotic organisms. It states that organelles inside eukaryotic cells, such as mitochondria and chloroplasts, were once free-living unicellular prokaryotic organisms that were engulfed by a host cell and evolved into specialized cell components over time.
How does the Endosymbiotic Theory explain the origin of eukaryotic organelles?According to the endosymbiotic theory, eukaryotic cells arose from the interaction of several distinct types of prokaryotic organisms. The theory claims that a host cell first consumed an aerobic bacteria, allowing the development of mitochondria. Later, it took up a cyanobacteria, resulting in the development of chloroplasts in some eukaryotic organisms.
This theory explains how eukaryotic cells came to be and how their organelles evolved, allowing them to accomplish complex cellular functions. This has implications for the evolution of all life on earth, as it means that multicellular organisms emerged from simpler, single-celled organisms in a process of co-evolution that resulted in the development of complex, differentiated organisms.
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HELP pls will mark you the brainliest
Answers
Answer: it's b my friend
Explanation:
Which of the options is not a general requirement for complex multicellular life?
Answers
a. Cells must retain a full range of functions, including reproduction s not a general requirement for complex multicellular life
Cell motility, cell contact, cell specialization, and cell proliferation are the four fundamental processes that create a multicellular organism. All of these activities take place simultaneously in a developing embryo in a myriad of different ways throughout the body.Complex multicellular organisms exhibit signs of intercellular communication, cell-cell adhesion, and, frequently, tissue development driven by regulatory gene networks. Many of these taxa experience intentional cell death, but unprogrammed cell or tissue loss can be fatal—possibly more so in metazoans than in other species with permanent stem cells.Hence other options except a are required for complex multicellular life.learn more about complex multicellular life here: https://brainly.com/question/11801282
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DISCLAIMER
Which of the following is not a general requirement for complex multicellular life?
a. Cells must retain a full range of functions, including reproduction.
b. Cells must stick together.
c. Cells must communicate with one another.
d. Cells must participate in a network of genetic interactions that regulate cell division.
e. All of these options are requirements for complex, multicellular life.
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how does a signaling molecule present in low concentrations cause a significant response in the cell?
Answers
Signal amplification
Signal amplification is a process whereby a signaling molecule, present in low concentrations, can cause a significant response in the cell. This process is achieved by the recruitment and activation of downstream effectors, which amplifies the signal and increases the cellular response's magnitude. This can be done in several ways, such as through the sequential activation of protein kinases, the formation of a transcriptional activation complex, or the production of a second messenger. These effectors increase the concentration of the signaling molecule inside the cell, thus amplifying the signal and resulting in a larger cellular response. The signal amplification process is important in cells as it allows them to detect and respond to signals even in low concentrations. This is especially important in cases where the signal molecule may be present only transiently; thus, a rapid response is required for the cell to detect and respond to it.
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removing the terminal bud of a plant that shows apical dominance will cause a) an increase in the growth of the root system. b) increased growth of the terminal bud. c) an immediate flowering of the plant. d) increased growth of the axillary buds.
Answers
Removing the terminal bud of a plant that shows apical dominance will cause an immediate flowering of the plant so the option c is correct
Apical dominance is the process by which shoot tips inhibit the growth of axillary buds further down the trunk in order to control the number of growing shoot tips and branches. Shoot apical dominance occurs when the shoot tip inhibits the growth of lateral buds, allowing the plant to grow vertically. It is important that the plant expends energy growing upwards in order for the plant to obtain more light for photosynthesis. Auxin produced at the top (or upper) growth tip of the plant stem causes the stem to grow upward and also stops the growth of lateral buds (lateral buds). This is called leading edge dominance.
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list examples of renewable and nonrenewable resources
Answers
Answer:
Resource Types
Renewable resources include timber, wind, and solar while nonrenewable resources include coal and natural gas.
Explanation:
Segments of DNA transferred from parent to offspring are called
.
Answers
Answer:
Segments of DNA transferred from parent to offspring are called genes
Explanation:
Just Cuz
Answer:
These are called as characteristics/genes.
Explanation:
i hope this help
what is the size of the population of black tip sharks
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The exact size of the population of black tip sharks is difficult to determine due to their migratory nature and the vastness of the oceans they inhabit.
However, some estimates suggest that there may be tens of thousands of black tip sharks globally. These sharks are found in coastal waters throughout the world, particularly in the western Atlantic, Indian, and Pacific oceans. While they are not currently listed as endangered, some populations may be at risk due to overfishing and habitat destruction. As a top predator in their ecosystem, the health of the black tip shark population is important for the overall health of marine ecosystems. More research is needed to better understand and monitor the population dynamics of black tip sharks.
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The wing of a bird and the leg of a horse are very different looking structures. Although they look different, bird wings and horse legs are very similar in the arrangement of the bones that make up the limb. Which term is used by scientists to describe structures that look different on the outside but are actually similar in construction and develop from the same embryonic tissues? es -0) A) common descent B) analogous structures vestigial structures D) homologous structures Answer:
Answers
Answer: Homologous structures
Explanation: They are structures which have similarities in various organisms but carry out opposite functions. This is the opposite of analogous structures
Nitrogen fixation is carried out by nitrogen-fixing bacteria that live in the soil and roots of legumes, such as peas, making these bacteria an essential part of the what cycle?
Answers
Answer: The nitrogen cycle
Which of the following would be the best description of the atmosphere? Please!
Answers
Answer: Layers of gases surrounding earth
Explanation:
Explanation:
The answer is D. Layer of gases that surround the Earth.
Which of the following statements concerning chromosomes is/are true? Select all that apply.
selectk All That Apply
Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.
Located on each chromosome are segments of DNA known as genes or units of inheritance that code for functional products.Located on each chromosome are segments of DNA known as genes or units of inheritance that code for functional products.
Homologous chromosomes contain the same genes and the same allele combination.Homologous chromosomes contain the same genes and the same allele combination.
DNA replication occurs prior to the cell cycle, in which copies of each homologous chromosomes are made and each of these copies are called sister chromatids.DNA replication occurs prior to the cell cycle, in which copies of each homologous chromosomes are made and each of these copies are called sister chromatids.
After replication, sister chromatids, which are identical copies of a chromosome, contain identical allele combinations.After replication, sister chromatids, which are identical copies of a chromosome, contain identical allele combinations.
The ultimate purpose of sexual reproduction and replicating chromosomes is to pass on a copy of a cell’s genes to the next generation of cells within the body.The ultimate purpose of sexual reproduction and replicating chromosomes is to pass on a copy of a cell’s genes to the next generation of cells within the body.
Answers
The true statements concerning chromosomes are:
1. Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.
2. Located on each chromosome are segments of DNA known as genes or units of inheritance that code for functional products.
3. Homologous chromosomes contain the same genes and the same allele combination.
4. DNA replication occurs prior to the cell cycle, in which copies of each homologous chromosomes are made, and each of these copies is called sister chromatids.
5. After replication, sister chromatids, which are identical copies of a chromosome, contain identical allele combinations.
6. The ultimate purpose of sexual reproduction and replicating chromosomes is to pass on a copy of a cell's genes to the next generation of cells within the body.
1. Chromosomes are composed of DNA and histones, which are proteins that help in packaging the DNA. This packaging allows the long DNA molecule to fit tightly into the nucleus of a cell.
2. Genes are located on chromosomes. They are segments of DNA that contain instructions for building functional products like proteins. These genes serve as the units of inheritance, carrying genetic information from one generation to the next.
3. Homologous chromosomes refer to the two copies of each chromosome in a diploid cell. While they contain the same genes, they may have different alleles, or versions of those genes, which contribute to genetic variation.
4. DNA replication occurs before the cell cycle. During replication, each chromosome's DNA is copied, resulting in two identical sister chromatids attached at a central region called the centromere. This ensures that each daughter cell receives a complete set of chromosomes during cell division.
5. Sister chromatids are exact copies of each other because they are formed through DNA replication. They contain identical allele combinations since they originated from the same chromosome.
6. The purpose of sexual reproduction and the replication of chromosomes is to pass on a copy of the cell's genes to the next generation of cells within the body. This ensures the transmission of genetic information, allowing for the development of new individuals with unique combinations of genes.
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Can someone help me with this question, please!!
Answers
Answer:
Genotypic- 1:1
Phenotypic- 1:1
Explanation:
For this problem, I will use the letter A to represent the alleles. The first parent's genotype would be Aa, and the second parent would be aa. Then, using a punnet square to cross the two parents the outcome is Aa, Aa, aa, aa. This means there is a 50% of a mixed individual and a 50% of a purebred recessive. Both phenotypes also have a 50% chance of being expressed. Since the percentages are equal both ratios are 1:1.
What substances do each of the letters represent?
ОА Wis O2; X is H2O; Y is CO2; and Z is glucose.
B
W is H20; X is O2; Y is CO2; and Z is glucose.
OC
W is H20; X is O2; Y is glucose; and Z is CO2.
D
W is CO2; X is O2; Y is H20; and Z is glucose.
Answers
Answer:
The answer is B
Explanation:
I had this question for a test.
The five-kingdom system of classification reflects the idea that all organisms can be separated into two main groups: prokaryotes and eukaryotes. The new six-kingdom system recognizes three broader groups called domains, that include six kingdoms. How does the domain eukarya differ from the other two domains?.
Answers
Due to the fact that every organism in the domain Eukarya has eukaryotic cells, it stands out from the other two domains.
What was the 5 kingdom classification and what was the rationale behind classifying life into 5 kingdoms?Whittaker proposed the categorization of the five kingdoms. Monera, Protista, Fungi, Plantae, and Animalia are the five kingdoms. Animalia is the name given to the heterotrophic kingdom of species that rely on other organisms for nourishment.
According to the outdated five-kingdom classification scheme, which kingdom contains all prokaryotic organisms?The most popular classification scheme is the Five Kingdom system, which divides the three main branches of multicellular eukaryotes into distinct Kingdoms and groups all prokaryotes (organisms without nuclear membranes) into a single Kingdom called Monera.
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How are climate zones classified? What factors do we look at?
willing to give 30 points :)
Answers
Explanation:
Climate zones are classified by the Köppen classification system. This system is based on the temperature, the amount of precipitation, and the times of year when precipitation occurs. Since climate determines the type of vegetation that grows in an area, vegetation is used as an indicator of climate type.
How does Earth’s position relative to the Sun cause the four seasons?
a. Earth orbits the Sun once a year and is in a different position with respect to the Sun every three months, resulting in four seasons.
b. The tilt of Earth’s axis with respect to its orbit changes back and forth approximately 46 degrees every six months, resulting in four seasons.
c. Earth’s axis is tilted with respect to its orbit, so, as it revolves around the Sun its tilt with respect to the Sun changes, resulting in four seasons.
d. Earth rotates on its axis every twenty-four hours, and, since the axis is tilted with respect to the Sun, different parts of Earth experience different day-lengths, resulting in four seasons
Answers
Answer:
c. Earth’s axis is tilted with respect to its orbit, so, as it revolves around the Sun its tilt with respect to the Sun changes, resulting in four seasons.
Explanation:
Earth’s tilted cause the four seasons in different parts of earth. In summer, the surface of earth is present directly to the sun causes high temperature of that region while on the other hand, the same region experience cold temperature in winter due to tilt of the earth which does not allow the solar radiation comes directly to that region of the earth that leads to cold temperature.
There are _____ types of RNA; each with its’ own function
Answers
Answer:
Explanation:
mRNA (messenger RNA): Produced during transcription. ...
rRNA (ribosomal RNA): Together with proteins, composes the ribosome, the organelles that are the site of protein synthesis.
tRNA (transfer RNA): Brings the correct amino acid to the ribosome during translation.
match the following components involved with protein import into the er with the cellular location where they are normally found. - signal recognition particle - protein translocator - mrna - srp receptor - active site of signal peptidase 1. cytosol 2. er lumen 3. er membrane
Answers
By matching the components involved with protein import into the ER with their cellular locations, we get:
Signal recognition particle: 1. cytosol
Protein translocator: 3. ER membrane
mRNA: 1. cytosol
SRP receptor: 3. ER membrane
Active site of signal peptidase: 2. ER lumen
Several elements are crucial for protein import into the endoplasmic reticulum (ER). A cytosolic protein called the signal recognition particle (SRP) identifies and attaches to the signal peptide on the developing protein as it leaves the ribosome.
The SRP then directs the ribosome-nascent protein-SRP complex to the ER membrane's SRP receptor. The nascent protein is moved more easily over the ER membrane and into the ER lumen thanks to the protein translocator, which is also a component of the ER membrane. The ER lumen contains the signal peptidase active site, which cleaves off the signal peptide. The nascent protein's mRNA can be found in the cytosol as well.
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TYPES OF LEVERS
Name
Classify the following levers as first, second or third class.
Answers
Answer:
First class lever
Second class lever
Third class lever
First class lever
First class lever
Third class lever
Second class lever
Second class lever
Explanation:
A lever is one of the types of simple machine. It is used to rotate on a fixed point. Load, effort and fulcrum are the three important parts involved in the functioning of lever. In the first class lever, the fulcrum is situated in the middle of the load and the effort. In the second class lever, the load is situated in the middle of the fulcrum and effort. In the third class lo=ever, the effort is situated in the middle of the fulcrum and the load.
DNA is copied during the S Phase of Interphase. Why do cells copy the DNA?
Answers
Answer:
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division.
Explanation:
What is thought to bring different organisms such as fish and dolphins to have evolved a similar body plan?
Answers
Answer:
their very similar environments.
Explanation:
The type of evolution that is referenced here actually has a name -- convergent evolution. It's when two types of organisms/species have nothing in common ancestor-wise but still evolve similarly due to their similar environments. The similar body plan the question is referencing could include fins and other "fish features" as well. :-)
this is the measure of intensity of heat in degrees, reflecting the average kinetic energy of the molecules.
Answers
The measure of intensity of heat in degrees, reflecting the average kinetic energy of the molecules, is called "temperature."
Temperature is a scalar quantity that determines how hot or cold an object is compared to a reference point, usually measured in degrees Celsius (°C), Kelvin (K), or Fahrenheit (°F).
Temperature is related to the average kinetic energy of the molecules within a substance.
Kinetic energy is the energy an object possesses due to its motion, and in the case of temperature, it is the average energy of the particles' motion within a substance.
As the temperature of a substance increases, so does the average kinetic energy of its molecules. This means that the particles within the substance are moving faster, resulting in an increased intensity of heat.
To measure the temperature, we often use a thermometer, which is a device that consists of a temperature-sensitive material that expands or contracts as the temperature changes.
When the thermometer is placed in contact with a substance, the temperature-sensitive material reacts, allowing the user to read the temperature from a scale marked on the device.
In summary, the measure of intensity of heat in degrees, reflecting the average kinetic energy of the molecules, is called temperature. Temperature is an essential parameter in understanding the behavior of matter and the transfer of heat energy between substances, which is fundamental in many scientific and engineering applications.
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List two diseases that are the result of a viral
attack on the human nervous system.
Answers
Answer:
rabies , Tick-borne encephalitis
Explanation:
Answer:
look at the bottom
Explanation:
Acute - the most common diseases caused by acute viral infections are encephalitis, flaccid paralysis, aseptic meningitis, post infectious and encephalomyelitis.
Compare and contrast the growth rate of pinto beans at the different temperatures
Answers
To compare and contrast the growth rate of pinto beans at different temperatures, you would need to conduct an experiment. Here are the steps to follow:
1. Gather pinto bean seeds, pots, potting soil, and a temperature-controlled environment.
2. Divide the pinto bean seeds into equal groups.
3. Plant the seeds in the pots filled with potting soil, ensuring the same planting depth and watering conditions for all groups.
4. Place each group of pots in separate temperature-controlled environments, such as rooms with different temperatures or using a heating pad and refrigerator.
5. Record the temperatures of each environment and monitor them regularly.
6. Water the pinto bean plants regularly, ensuring all groups receive the same amount of water.
7. Measure the growth of the pinto bean plants periodically. You can measure the height, number of leaves, or any other suitable metric.
8. Record the growth measurements for each group at specific time intervals.
9. Analyze the data and compare the growth rates of the pinto bean plants at different temperatures.
10. Identify any patterns or trends in the data and draw conclusions.
By following these steps, you will be able to compare and contrast the growth rates of pinto beans at different temperatures. Remember to control all other variables except for temperature to ensure accurate results.
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Differentiate between the lysogenic and lytic cycles. (1 point)
O The host cell copies its own DNA during the lytic cycle.
Hy
O The host cell is destroyed during the lytic cycle.
O Viral proteins are synthesized during the lysogenic cycle.
O The virus injects DNA into the host cell during the lysogenic cy
Answers
The difference between lysogenic and lytic cycles is that: the host cell is destroyed during the lytic cycle.
Lysogenic cycle is the reproduction method of viruses where the virus integrates its genetic material into the host genome and makes multiple copies by taking over the host's machinery. The host cell does not get destroyed in this process immediately.
Lytic cycle is also another reproduction method of the viruses where the viral genome remains free-floating in the host cell and replicates itself separately. Once the replication is completed, the cell bursts and the viral genome is spread all over the surroundings.
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