What is known as a bi-product of cellular respiration, that is given off from the
Kreb's cycle.
Answers
Explanation:
In the presence of oxygen, under aerobic conditions, pyruvate enters the mitochondria to proceed into the Krebs cycle. The second stage of cellular respiration is the transfer of the energy in pyruvate, which is the energy initially in glucose, into two energy carriers, NADH and FADH2. A small amount of ATP is also made during this process. This process occurs in a continuous cycle, named after its discover, Hans Krebs. The Krebs cycle uses a 2-carbon molecule (acetyl-CoA) derived from pyruvate and produces carbon dioxide.
The Krebs cycle uses a 2 carbon moleculen(acetyl-CoA0 derived from pyruvate and produces carbon dioxide.
Related Questions
please explain how an increase of CO2 in the blood will effect the
URINE pH (explain the mechanism, will it increase or decrease urine
pH?)
Answers
When an increase in carbon dioxide (CO2) occurs in the blood, it leads to an increase in the acidity of the blood. This is because when CO2 levels in the blood rise, carbonic acid levels also rise, causing a decrease in blood pH. In response, the body will try to eliminate the excess CO2 by increasing respiration.
When an increase in carbon dioxide (CO2) occurs in the blood, it leads to an increase in the acidity of the blood. This is because when CO2 levels in the blood rise, carbonic acid levels also rise, causing a decrease in blood pH. In response, the body will try to eliminate the excess CO2 by increasing respiration. The increase in respiration leads to the elimination of carbon dioxide from the body via exhalation. This process restores blood pH to its normal level.
The kidneys also play a role in regulating blood pH. They excrete excess hydrogen ions (H+) into the urine to maintain the balance of acids and bases in the blood. When blood pH falls, the kidneys excrete more H+ into the urine, causing urine to become more acidic.
Conversely, when blood pH rises, the kidneys excrete fewer H+ into the urine, causing urine to become more alkaline. Therefore, an increase in CO2 levels in the blood will lead to an increase in acidity, causing the kidneys to excrete more H+ into the urine, which will decrease the urine pH.
This is because the excess CO2 in the blood leads to an increase in the production of carbonic acid, which dissociates into bicarbonate ions (HCO3-) and H+ ions. The H+ ions are then excreted by the kidneys into the urine, causing a decrease in urine pH. Hence, an increase in CO2 levels in the blood will cause a decrease in urine pH. This mechanism helps to maintain the body's acid-base balance.
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How do male bears fighting over female bears result in an overall better adapted beat population?
Answers
This phenomenon produces a better generation because competition gives rise to a most adapted population with higher fitness.
What is natural selection?Natural selection refers to the differential reproduction of individuals in a population which lead to its evolution across time.
The better-adapted individuals will have more chances to reproduce and therefore they will perpetuate their genes in the offspring (next generation).
In conclusion, this phenomenon produces a better generation because competition gives rise to a most adapted population with higher fitness.
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TRUE or FALSE?
All of the carbon in existence is cantinually recycled in the carbon cycle.
False
True
Answers
Answer:
The correct answer is true.
Answer: B. True
Reason:
Hope this helps
If the laci gene in the genetically engineered fluorescent strain were nonmutant but the laco sequence on the plasmid mutated to lacoc, how would the cells fluoresce in the presence of inducer? in the absence of inducer?.
Answers
The cell in the presence of an inducer would fluoresce in yellow and in absence of inducer it would not fluoresce.
When an inducer was present, the cell would glow yellow. Fluorescence doesn't exist without an inducer. The galaxy-wide enzyme galactosidase is responsible for lactose metabolism. This one encodes for the protein product that is also repressed, or which in the absence of lactose in the media and thus does not show fluorescence.
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Structures represented in the illustration below are found in the lower epidermis of a plant leaf. The illustration shows the response to a certain environmental condition. What are the structures that point T and Q and what would the response represented in the illustration most likely be caused by?
Answers
In the given structure T represents Guard cells while Q represents Stoma.
The structures represented by points T and Q in the illustration below are found in the lower epidermis of a plant leaf. Point T represents a guard cell, and point Q represents a stoma (also called a stomatal pore). The response shown in the illustration is most likely due to the lack of available water.
Guard cells are specialized cells found in the lower and upper epidermis of leaves in plants. They are responsible for regulating the opening and closing of stomata, which are tiny pores on the surface of leaves that allow for gas exchange between the plant and the environment.
Guard cells are kidney-shaped and contain chloroplasts, which enable them to photosynthesize and produce energy for their function. When they are turgid (swollen with water), the stomata open, allowing for the exchange of gases such as carbon dioxide, oxygen, and water vapor. When they are flaccid (lacking water), the stomata close, preventing water loss and conserving water within the plant.
The opening and closing of stomata is regulated by changes in turgor pressure within the guard cells, which is influenced by environmental factors such as light, temperature, humidity, and carbon dioxide levels. Guard cells play a crucial role in plant survival by maintaining the balance between gas exchange and water conservation.
Stomata (singular: stoma) are tiny pores or openings found in the leaves, stems, and other above-ground parts of plants. Stomata are surrounded by a pair of specialized cells called guard cells that regulate their opening and closing.
Stomata are the main sites for gas exchange in plants, allowing for the uptake of carbon dioxide needed for photosynthesis, and the release of oxygen produced during photosynthesis. They also play a role in transpiration, which is the loss of water vapor from the plant through its leaves.
The number and distribution of stomata on a plant can vary depending on factors such as species, age, and environmental conditions.
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two objects with equal masses are in motion. which object will have more kinetic energy? (1 point) responses a. the object with the greater speed b. the object with the greater density c. the object with the greater acceleration d. the object with the greater volume
Answers
The object with the greater speed will have more kinetic energy. So the correct answer is option A.
The kinetic energy of an object is the energy it possesses as a result of its motion. The equation for kinetic energy is KE = 0.5mv², where m is the object's mass and v is its velocity or speed. The greater an object's mass and speed, the greater its kinetic energy. The unit of kinetic energy is Joule (J), which is a measure of energy in the International System of Units (SI). It can also be expressed in other units such as calories, foot-pounds, or electronvolts, depending on the context.
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some cancer cells are missing a key protein needed to repair double-strand dna breaks. they survive by relying on alternative dna repair mechanisms. to treat these cancers, researchers have developed drugs that do which of the following?
Answers
B) promote alternate DNA repair mechanisms in normal cells. Mutations in certain DNA repair mechanisms increase the vulnerability to different cancer forms.
While it is illogical to believe that stopping DNA repair processes could be a viable strategy for eliminating cancer cells, careful identification of DNA repair proteins that play essential roles in maintaining DNA integrity is a strategy that appears to have promise in the arsenal of cancer treatments.
Long recognized as a contributing element in the development of cancer, DNA damage. Erroneous DNA repair can result in mutations or chromosomal abnormalities that influence tumor suppressor and oncogene genes, causing aggressive development in cells. Cancer can be caused by genetic abnormalities. However, DNA damage continues to offer a crucial route for chemo and radiation, in addition to being a primary factor in the genesis of cancer.
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Please send an answer quick thank you. By the way this is a science question, to see the whole page click on the picture.
Answers
Answer:
i believe its 3) hypothesis
Explanation:
you have to propose a hypothesis to conduct an experiment and make or break the theory
Aimee is taking a shot of several deer in the forest. She wants to emphasize the size of those deer closest to her. Which lens should she use
Answers
To emphasize the size of the deer closest to her, Aimee should use a telephoto lens.
Telephoto lenses have a longer focal length, which allows for magnification of distant objects and the compression of the depth of field. When photographing deer in the forest, using a telephoto lens will allow Aimee to zoom in and capture the deer up close, making them appear larger in the frame. In contrast, wide-angle lenses would have the opposite effect. They have a shorter focal length, resulting in a wider field of view and a greater depth of field. Wide-angle lenses are better suited for capturing expansive landscapes or scenes where the photographer wants to include more of the surroundings rather than emphasizing a specific subject up close. Therefore, for emphasizing the size of the deer closest to her, Aimee should opt for a telephoto lens.
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Sebastian wants to make ball-and-stick models of the four macromolecules. He has colored balls for each of the elements in these molecules, including the following. red: hydrogen black: carbon purple: oxygen green: nitrogen Which molecule could he make that consists of long chains of red and black colored balls? carbohydrates lipids nucleic acids proteins
Answers
Answer:
lipids
Explanation:
There are four major biological macromolecules in living systems viz: carbohydrate, proteins, lipids and nucleic acids. These macromolecules play a significant role in the optimal functioning of every living organism. Like every other polymer, these macromolecules are made up of simpler units called monomers that defines their chemical structure. In turn, the monomers consists of chains of chemical elements held together.
According to the question, Sebastian has colored balls that represents the elements contained by each of these macromolecules. The colored balls and the elements they represent are as follows: Red: hydrogen, Black: carbon, Purple: oxygen, and Green: nitrogen.
Lipids are structurally made up of fatty acids and glycerol, which are long chains of carbon and hydrogen elements with a relatively small percentage of oxygen in the structure. An example is palmitic acid, which has a structural formula: CH3(CH2)14COOH
Hence, Sebastian could make a LIPID macromolecule, which consists of long chains of red (hydrogen) and black (carbon) balls since lipids are mostly made up of carbon and hydrogen elements in their structure.
Carbohydrates are composed of more percentage of oxygen in their structure. Hence, a long chain of only red (hydrogen) and black (carbon) balls cannot make them. Proteins and nucleic acids are made up of additional nitrogen and phosphorus elements in their structure.
Answer:
B. Lipids
Explanation:
Lipids contain carbon and hydrogen.
One way carbon dioxide enter the atmosphere
Answers
by burning fossil fuels
Which of the following traits are found in all bipedal hominins? Select all that apply
Divergent hallux
Bowl shaped pelvis
Anteriorly located foramen magnum
Femur that angles inwards at the knee C-shaped spine
Answers
The following traits that are found in all bipedal hominins are: Anteriorly located foramen magnum, Bowl shaped pelvis, and Femur that angles inwards at the knee.
These features are what makes hominins unique from other primates. The Divergent hallux and C-shaped spine are not found in all bipedal hominins.
Here is the discussion for the aforementioned traits:
Anteriorly located foramen magnum: The foramen magnum is the large opening in the base of the skull that the spinal cord passes through. In bipedal hominins, the foramen magnum is located at the base of the skull, near the center, which indicates that the head is balanced over the spine.
Bowl-shaped pelvis: The bowl-shaped pelvis of hominins allows the weight of the body to be transferred down through the legs to the feet. The pelvis is positioned such that the iliac blades (the upper part of the hip bones) are parallel to the ground, and the acetabula (the sockets that the femurs fit into) are positioned toward the sides of the pelvis.
Femur that angles inwards at the knee: The femur, or thigh bone, is angled inwards at the knee in bipedal hominins. This angle places the knees closer together than the hips, helping to balance the weight of the body over the feet and to maintain stability while walking.
Divergent hallux: The hallux is the big toe. A divergent hallux means that the big toe is angled away from the other toes, as is the case in modern humans.
However, early hominins had a grasping hallux, which allowed them to grasp tree branches while moving through the trees. C-shaped spine: A C-shaped spine is the shape of the spine in four-legged animals. In bipedal hominins, the spine is S-shaped, which helps to shift the weight of the body over the hips while walking.
So, the correct answers are: Bowl shaped pelvis, Anteriorly located foramen magnum and Femur that angles inwards at the knee C-shaped spine.
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which of the following was not one of darwin's observations?group of answer choicessome characteristics afford their possessor a better chance of survivalchanges in organisms were gradual and took place over long periods of timesome characteristics are heritable and passed on to offspringmembers of the same species may exhibit considerable variationmost individuals have an equal chance to survive and reproduce
Answers
The correct answer is: 1. Most individuals have an equal chance to survive and reproduce. This statement was not one of Darwin's observations.
The statement - Most individuals have an equal chance to survive and reproduce was not one of Darwin's observations.
Darwin observed that individuals within a population vary in their traits and that some traits can provide advantages for survival and reproduction.
This leads to differential survival and reproduction, with individuals possessing advantageous traits being more likely to pass them on to the next generation.
Darwin's observation was that individuals with certain advantageous traits have a better chance of survival and reproduction compared to others, which leads to the accumulation of favorable traits in a population over time. This concept is known as natural selection.
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The correct question is:
Which of the following was not one of darwin's observations?
1. some characteristics afford their possessor a better chance of survival
2. changes in organisms were gradual and took place over long periods of time
3. some characteristics are heritable and passed on to offspring
4. members of the same species may exhibit considerable variation
5. most individuals have an equal chance to survive and reproduce
Organisms can adapt to their environment within one generation which of the folllwing best explains why the statement is either true or false
Answers
The statement "Organisms can adapt to their environment within one generation" is true and this is because many organisms have genetic variations or traits that allow them to better survive and reproduce in certain environmental conditions.
What is adaptation?Adaptation is the process of adjusting to new or changing circumstances in order to better survive, thrive, and function in a particular environment. It can refer to a range of biological, psychological, social, and technological processes through which individuals or systems change in response to various challenges or opportunities.
In biology, adaptation typically refers to the evolutionary process by which organisms develop characteristics that enhance their ability to survive and reproduce in their environment. These adaptations can be structural, physiological, or behavioral, and can arise through natural selection or other mechanisms.
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the common viral illness called influenza spreads quickly and can cause epidemics, which are rapid outbreaks. the average time from exposure to developing symptoms is 2 days. what description describes the life cycle of this virus
Answers
Influenza viruses journey thru the air in droplets when someone with the contamination coughs, sneezes or talks. You can inhale the droplets directly. Or you can pick up the germs from an object — such as a smartphone or laptop keyboard — and then transfer them to your eyes, nostril or mouth.
What is the description of the influenza virus?Flu is a contagious respiratory illness triggered by means of influenza viruses that infect the nose, throat, and once in a while the lungs. It can cause mild to extreme illness, and at times can lead to death.
Which type of influenza virus is the principal cause of epidemics and pandemics?Influenza A viruses are the only influenza viruses regarded to motive flu pandemics (i.e., world epidemics of flu disease). A pandemic can happen when a new and extraordinary influenza A virus emerges that infects people, has the capacity to spread efficaciously among people, and towards which humans have little or no immunity.02
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sweet william is a flowering plant that does not complete its life cycle until its second growing season. therefore sweet william is a(an quizlet
Answers
Sweet William is classified as a biennial plant. A biennial plant is a type of flowering plant that typically has a two-year life cycle.
During the first year, the plant focuses on vegetative growth, establishing its root system and developing leaves. It does not typically produce flowers or seeds during this initial year. In the case of Sweet William, it also follows a biennial life cycle. It requires two growing seasons to complete its life cycle. During the first year, it forms a basal rosette of leaves and establishes its root system. In the second year, Sweet William produces flowers and seeds, and it typically completes its life cycle by the end of this second growing season. Therefore, the appropriate classification for Sweet William in terms of its life cycle is "biennial."
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what are the differences between RNA and DNA
Answers
Answer:
The difference between RNA and DNA is the sugar present in the molecules
Explanation:
In RNA,the sugar molecule present is Ribose while in DNA the sugar molecule present is Deoxyribose.
Match the sentences in the following chart
A- Recombinant bacterial plasmid is used to produce genetically modified plants.
B- Recombinant bacterial plasmid is used to produce human insulin.
C- Recombinant viral DNA is used to treat some diseases like cystic fibrosis.
D- Random DNA sequences that are different from
one person to another.
1-DNA fingerprint
2-GMO
3-Human proteins production
4-Gene therapy
Answers
Matching the sentences in the chart:
A - 2-GMO (Recombinant bacterial plasmid is used to produce genetically modified plants)
B - 3-Human proteins production (Recombinant bacterial plasmid is used to produce human insulin)
C - 4-Gene therapy (Recombinant viral DNA is used to treat some diseases like cystic fibrosis)
D - 1-DNA fingerprint (Random DNA sequences that are different from one person to another)
Distinguish between meiosis and mitosis in terms of:
a. Purpose of the division
b.Type of parent cells
c. Are the daughter cells genetically identical or different?
d. Are the daughter cells haploid or diploid?
e. Number of daughter cells
f. Number of divisions
Answers
Someone please help the questions are
State the name of
The liquid that is produced by the liver and stored by organ p
Organ p
Next question is
Explain what happens to ingested fat at r in fig 1.1 before chemical digestion occurs
Answers
Answer:
Organ p is gallbladder
Answer for 1 question:Bile is the greenish-yellow fluid (consisting of waste products, cholesterol, and bile salts) that is secreted by the liver cells to perform 2 primary functions: To carry away waste.
Answer for sec.question:The first part of the small intestine. It connects to the stomach. The duodenum helps to further digest food coming from the stomach. It absorbs nutrients (vitamins, minerals, carbohydrates, fats, proteins) and water from food so they can be used by the body.
Bile grabs onto the fats, and the emulsifiers increase their surface area, making them easier for digestive enzymes to act on. Following this, enzymes break apart fatty acids. Lipase from the pancreas further digests fats into monoglycerides and fatty acids.
Explanation:
Hope I helped you
Answer:
organ p is gallbladder
Explanation:
Bile grabs onto the fats, and the emulsifiers increase their surface area, making them easier for digestive enzymes to act on. Following this, enzymes break apart fatty acids. Lipase from the pancreas further digests fats into monoglycerides and fatty acids.
A bat wing, an alligator leg, and a human arm are homologous structures. Which fact about those structures best supports one aspect of the theory of evolution? Question 14 options: a. The fact that the bone structures are similar supports the concept that the animals shared a common ancestor. b. The fact that the bone structures are similar supports the concept that birds evolved from mammals. c. The fact that the bone structures are completely different supports the concept that those organisms evolved from each other.
Answers
Answer:
A - The fact that the bone structures are similar supports the concept that the animals shared a common ancestor.
Explanation:
Homologous structures refer organs which are similar in structure which are derived from ancestors of similar species.
Which of the following is the best definition of a scientific theory?
A.
a broad, well-supported explanation of related observations or events
B.
a highly tentative statement about the natural world that is likely to be significantly changed or discarded
C.
a plausible answer to a scientific question that is used to guide research
D.
a description of a natural phenomenon that is always observed to occur under specific conditions
Answers
Answer:
B
Explanation:
noun. a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution
OH OH OH OK BIG QUESTION HERE I NEED TO KNOW THE ANSWER BECAUSE MY TEACHER NEVER GAVE ONE!!!!! ok sorry, I can't believe I forgot this question till now! ok ok ok ok k k k k k k k. You know the experiment where they put a baby or like baby monkeys in cages with no parent and like they were alone? I don't remember the name of this experiment but yeah anyway, after like a few days or so they went back to check on the babies and they were smashing their heads on the cage and kinda insane. basically, it proved that people need affection and to be around others or we will go insane. Here's my question antisocial people, people that don't like hugs or being touched? That's like saying you just don't like food...right?!?!?! (also before you get all emo on me at say something like " oh you just don't get it prep you have happiness :(", lol sorry that was really funny, anyway yeah I'm antisocial too...probably why I thought about this question...um anyway yeah please answer my question)
Answers
Answer:
Anti- Social people just arent a fan of people always being around and being all up onthem. They like alone time because they are just born that way, ( i think)
Explanation:
Need help ASAP please please
Answers
in addition to remaining granulosa cells, which of the following cell types make up the corpus luteum?
Answers
Answer: lutein cells i think
Explanation:
The corpus luteum is made up of lutein cells (from the Latin luteus, meaning “saffron-yellow”), which develop immediately following ovulation, when yellow pigment and lipids accumulate within the granulosa cells lining the follicle.
its not that hard 20 points! im just too lazy
Ferns have _____.
A.nonvascular tissue and no seeds
B.vascular tissue and no seeds
C.nonvascular tissue and seeds
D.vascular tissue and seeds
Answers
Answer:
I think the answer is gonna be b
Answer:
B
Explanation:
it is correct because I did it
8
Chloroplasts are organelles with digestive enzymes.
a) True b) False
Answers
Answer:
the answer is false ......
Write the complementary sequence (in the standard 5’ to 3’ notation) for a) GATCAA b) TCGAAC c) ACGCGT and d) TACCAT
Answers
The complementary sequence is CTTAGT, GTTCGA, TACGCA, ATGGTA
In DNA, the nucleotide bases always pair up in a specific way: adenine (A) with thymine (T), and cytosine (C) with guanine (G). Therefore, to find the complementary sequence, you just need to replace each base with its complementary base. In the standard 5' to 3' notation, the complementary sequence of a DNA strand is written in the opposite direction, with the 3' end written first and the 5' end written last. For example, the complementary sequence of GATCAA is CTTAGT, which is obtained by replacing each base with its complementary base (G with C, A with T, T with A, C with G, A with T).
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Vespula flavoplisa and vusplisa,explain how the appearance suggests that those two are closely related than callicera rufa
Answers
Answer:
I don't know
Ask to other
What are a type of filament system in eukaryotes that form non-polar paired filaments and bind GTP?
Answers
These filaments consist of tubulin dimers (consisting of one a-tubulin and one B-tubulin subunit) When GTP binds to the B subunit of the dimer it changes the conformation of the dimer and allows for polymerization to form a microtubule filament. The B-subunit will eventually hydrolyze the GTP to GDP, at which point the conformation of the dimer will change again such that the dimers will depolymerize and the microtubule will dissolve into the cytoplasm.