How many electrons enter Complex I from the complete oxidation of pyruvate?
Answers
Six electrons are transferred to the electron transport chain through NADH.
The complete oxidation of pyruvate via the citric acid cycle and oxidative phosphorylation involves the transfer of electrons through several protein complexes in the electron transport chain.
Complex I, also known as NADH dehydrogenase, accepts electrons from NADH and transfers them to ubiquinone (Coenzyme Q). In the process, it pumps protons across the inner mitochondrial membrane to establish a proton gradient that is used to generate ATP.
During aerobic respiration, each molecule of pyruvate produces three molecules of NADH in the citric acid cycle. Each NADH molecule transfers two electrons to Complex I, so a total of 3 NADH x 2 electrons/NADH = 6 electrons enter Complex I from the complete oxidation of pyruvate.
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Related Questions
question 92 51) which of the following large biological molecules will self-assemble into a bilayer when mixed with water? a) proteins b) triacylglycerols c) cellulose d) phospholipids
Answers
The large biological molecule that will self-assemble into a bilayer when mixed with water is phospholipids.
Phospholipids are the large biological molecule that will self-assemble into a bilayer when mixed with water. The main feature of a phospholipid is the presence of two hydrophobic fatty acid chains and a hydrophilic head.
These molecules are amphipathic, with a polar (charged) hydrophilic head and nonpolar hydrophobic tail. They can self-assemble into a bilayer due to the hydrophobic effect when mixed with water. The correct option is d) phospholipids.
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how does the position of the mouth differ between the planarian the tapeworm and the fluke
Answers
The positions of the mouths in planarians, tapeworms, and flukes are different due to their unique feeding habits and body structures. Planarians have a mouth located ventrally near the middle of their body, tapeworms have no mouth as they absorb nutrients directly through their body surface.
Planarians, tapeworms, and flukes are all types of flatworms, but they have distinct feeding habits. Planarians are free-living organisms that use their mouth to ingest food particles. In tapeworms, which are parasitic organisms, there is no mouth because they absorb nutrients directly through their tegument, a specialized body surface. Flukes, also parasitic, have a mouth at the anterior end of their body, which they use to feed on blood, tissue, or other bodily fluids of their host.
The position of the mouth in planarians, tapeworms, and flukes is a reflection of their respective feeding habits and body structures. While planarians have a centrally-located mouth for ingesting food, tapeworms lack a mouth due to their nutrient-absorbing body surface, and flukes possess an anterior mouth used for feeding on host fluids.
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NEED AN ANSNER VERY QUICKLY
Which statement is factual?
1.Asexual reproduction produces offspring that are identical to the parent.
2.Sexual reproduction allows for diploid gametes to combine to increase genetic variation.
3.Asexual reproduction leads to the formation of haploid gametes.
4.Sexual reproduction does not require the production of gametes.
Answers
Answer:
1
Explanation:
How do we know when to drink water?
Answers
Answer:
When you are thirsty
Explanation:
This means that your throat is dry and scratchy.
Please help with this biology diagram
Answers
Answer:
for the second drawing
it is an animal cellA is vacuoleB is mitochondriaC is Golgi apparatusD is rough endoplasmic reticulumE is ribosomesF is the nucleusH is the smooth endoplasmic reticulumI is cell membraneB-Ribosomes
C-Cell wall
A-Vacoule
G-Endoplasmic Reticulum
F-Chloroplast
E-Mitochondria
D-Cell Membrane
J-Golgi apparatus
H-Nucleus
I-Cytoplasm
What did you learn about the channel on Mars from the new NASA data? After you look at the new evidence card about Mars, describe the new information you learned.
Answers
Explanation:
The new research carried out by NASA on mars suggets that many of the Mars' ancient channel have been carved by flowing water, were actually formed by melt water beneath glacial ice sheets. The rocks looked familiar to the rocks found on Earth in these water channels. Moreover, conglomerate rock was found near the base of the channel on Mars.
Which of these tissue changes is NOT commonly found in an aging body? A) more fragile connective tissue
B) thicker epidermis
C) loss of muscle mass
D) reduced mitotic rate
Answers
The tissue change that is NOT commonly found in an aging body is a thicker epidermis. Aging typically leads to more fragile connective tissue, loss of muscle mass, and a reduced mitotic rate. However, the epidermis, which is the outermost layer of the skin, does not generally become thicker with aging. Option B is the correct answer.
As the body ages, connective tissue, such as collagen and elastin fibers, can become more fragile and less resilient. This can result in decreased elasticity, increased wrinkles, and a higher susceptibility to injury. The loss of muscle mass, known as sarcopenia, is another common age-related change. It occurs due to a combination of factors, including decreased protein synthesis, hormonal changes, and reduced physical activity. Sarcopenia can lead to decreased strength, mobility, and functional decline.
Furthermore, the mitotic rate, which refers to the rate of cell division, tends to decrease with age. This reduced mitotic rate can result in slower tissue repair and regeneration, as well as a decreased ability to replace damaged cells and tissues. This contributes to the overall aging process and increased susceptibility to age-related diseases.
On the other hand, the epidermis, although it may undergo certain changes with age, does not generally become thicker. Instead, the epidermis may become thinner and more fragile due to a decrease in the number of skin cells, decreased collagen production, and a slower turnover of skin cells. These changes can lead to thinning of the skin, increased dryness, and a higher risk of skin injuries.
In summary, among the given options, the tissue change that is NOT commonly found in an aging body is a thicker epidermis. Aging typically involves more fragile connective tissue, loss of muscle mass, and a reduced mitotic rate. However, the epidermis tends to become thinner and more fragile with age, rather than thicker.
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Why is it called an artery if it does not carry oxygen rich blood ?
I need a brief explained answer not copied and pasted
Answers
Answer:
arteries actually CARRIES BLOOD RICH IN OXYGEN
Explanation:
Explain your reasoning and why the evidence supports your claim. Connect the data
back to what you learned about the albedo of sea ice and ocean water and how that
might affect how much of the sun's energy is absorbed.
Answers
A higher albedo indicates more reflectivity and a lower albedo indicating less reflectivity.
What is the albedo of sea ice?A surface's reflectivity is measured by its albedo, with a higher albedo indicating greater reflectivity and a lower albedo suggesting decreased reflectivity. The albedo can significantly affect how much solar radiation is absorbed by the surface in the case of sea ice and ocean water.
Due to its high albedo, sea ice reflects a large portion of the sun's incoming radiation back into space.
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Which term includes all of the interactions between the organisms and physical
factors in a pond? *
a. Population
b. Ecosystem
c. Abiotic
d. Competition
Answers
Population is the number of a species in an area, it has nothing to do with physical characteristics.
Abiotic is just an adjective meaning not alive
Competition is just the interactions between organisms in the struggle for food, water, space, mates, and many other things again not physical characteristics
CAN SOMEONE PLEASE ANSWER THIS QUESTION !! PLEASE PICK THE RIGHT ANSWER
Answers
Answer:
•Genes that determine each trait are located in chromosomes and are passed from parents to their offspring during reproduction
What is a biotic factor?
Answers
Answer:
A biotic factor is a living organism that shapes its environment. In a freshwater ecosystem, examples might include aquatic plants, fish, amphibians, and algae. Biotic and abiotic factors work together to create a unique ecosystem.
Explanation:
swelling; fluid leaks out into tissue spaces: a.edema b.dyscrasia c.ecchymoses d.autologous transfusion e.petechiae
Answers
Edema occurs when fluid leaks into tissue spaces during swelling.
What is edema?
Edema, as mentioned, is the swelling that is caused due to excess fluid in our body’s tissues. It may effect any part of our body, but most commonly is noticed in hands, feet, ankle, etc. Your skin can be stretched due to edema, and the swelling can increase, if not treated on time and cause serious health issues.
There are many causes of edema which include pregnancy, medications, infections and even excess sodium. It is also caused due to congestive heart failure or a block in leg vein.
Therefore, edema is nothing but swelling caused due to excess accumulation of fluid in tissues.
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An autotrophic diet means that:
the organism itself creates food in the process of photosynthesis;
the organism decomposes the dead remains of other organisms;
the organism takes ready-made food;
the organism receives ready-made food from the soil
Answers
Answer:
I believe the answer is, The organism creates food in the process of photosynthesis.
Explanation:
In autotrophic nutrition, the organism produces its food from inorganic raw materials like CO2 and H2O present in the surroundings by using sunlight energy. In autotrophic nutrition, organic material is made from inorganic materials. The green plants have an autotrophic mode of nutrition. I hope this helped :)
HalpbutIDontActuallyNeedHalp;) *Provided in pictureee*
Brainliest if you my bestieeeeeeee
Answers
Answer:
Lysosome
Explanation:
Answer: Lysosome - Found only in animal
Which cell type would be most likely to put off senescence and terminal differentiation so it could continue to replicate in order to grow and repair?.
Answers
Skin cells are the ones that will most likely delay final differentiation and senescence so they can continue to divide, develop, and heal.
Which cell type goes through terminal differentiation?Abstract. Different cell types (such as neurons, skeletal and cardiac myocytes, adipocytes, and keratinocytes) go through terminal differentiation, which involves a permanent withdrawal from the cell cycle in order to acquire specialised tasks.
Why do stem cells prevent senescence in cells?Autophagy reduces age-related cellular injury by eliminating harmed proteins and mitochondria, and it also enables stem cells to delay the transition from a reversible quiescent (G0) state to irreversible senescence.
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An astronaut is planning a trip to a newly-discovered planet according to the law of universal gravitation, the astronaut weight in the new planet will be greater than his weight on earth if:
Answers
The new planet has more mass than Earth but the same radius. The mass of the astronaut will be calculated by the use of Newton's gravitational equation. The weight of the astronaut depends completely on its mass and the gravitational acceleration of the planet.
Gravitational acceleration is directly proportional to the mass of the planet and indirectly proportional to the radius of the planet. Hence, when the gravitational acceleration increases the planet's mass will increase therefore the radius will decrease. The astronaut's mass will depend on these factors.
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Light energy from the Sun is used by a plant to perform
photosynthesis. Which structure of the plant helps it to absorb this
energy?
Answers
Answer:
Chlorophyll absorbs the energy from the sun.
Explanation:
Light absorbed by chlorophyll excites the electrons in the ring as shown below.
Answer:
chlorophyll
Explanation:
The main pigment used in photosynthesis, chlorophyll, reflects green light and most intensely absorbs red and blue light. In plants, chloroplasts containing chlorophyll are subject to photosynthesis.
A double membrane wraps chloroplasts and includes a third inner membrane, the thylakoid membrane, which forms long folds within the organelle.
5. Compare the eukaryotic cell cycle to a human life cycle. How are they similar? How are they
different?
Answers
The eukaryotic cell cycle and the human life cycle have some similarities and differences.
Similarities:
Both involve a sequence of events that occur in a specific order.Both involve phases of growth, replication, and division.Both are regulated by internal and external factors.Both involve a process of development and differentiation.Differences:
The eukaryotic cell cycle is much shorter than the human life cycle. A typical eukaryotic cell cycle lasts only a few hours to a few days, while the human life cycle spans several decades.The eukaryotic cell cycle is a continuous process that occurs repeatedly throughout the lifespan of an organism, while the human life cycle involves distinct stages, such as infancy, childhood, adolescence, adulthood, and old age.The eukaryotic cell cycle involves a single cell dividing into two identical daughter cells, while the human life cycle involves the development of a single cell (the fertilized egg) into a complex multicellular organism with many different cell types.The eukaryotic cell cycle is primarily concerned with maintaining and repairing tissues, while the human life cycle involves growth, development, reproduction, and aging.In summary, the eukaryotic cell cycle and the human life cycle share some similarities, such as a specific sequence of events and regulation by internal and external factors, but they also differ in their duration, stages, goals, and outcomes.
Answer:
The eukaryotic cell cycle and human life cycle are similar in that they both involve a series of stages that follow a particular sequence. However, the eukaryotic cell cycle is much shorter and involves cell division and DNA replication, while the human life cycle spans decades and involves physical, emotional, and cognitive developments that contribute to an individual's growth and well-being.
While both the eukaryotic cell cycle and the human life cycle follow a sequential pattern, they differ in terms of their duration and the specific processes that occur within each stage.
the macronutrient which supplies glucose, that cells use as the major energy source to fuel your body is
Answers
The macronutrient that supplies glucose, the major energy source used by cells to fuel the body, is carbohydrates.
Carbohydrates play a vital role in providing energy to the body. When consumed, carbohydrates are broken down into glucose during digestion. Glucose is a simple sugar that serves as the primary source of fuel for cells, including brain cells, muscles, and other tissues.
Once glucose is absorbed into the bloodstream, it is transported to cells throughout the body. Inside the cells, glucose undergoes a series of metabolic reactions, particularly in the mitochondria, to produce adenosine triphosphate (ATP), which is the energy currency of cells. ATP fuels various cellular processes, such as muscle contractions, nerve impulses, and the synthesis of molecules needed for cellular functions.
Carbohydrates can be obtained from various food sources, including grains, fruits, vegetables, and dairy products. It is important to consume an adequate amount of carbohydrates in the diet to provide the necessary glucose for energy production and overall bodily functions.
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the most abundant molecules in the cell membranes of most species are group of answer choices nucleotides fatty acids phospholipids steroids sugars proteins
Answers
The most abundant molecules in the cell membranes of most species are phospholipids. The phospholipid molecules are major components of all biological membranes and they are responsible for regulating the flow of substances into and out of the cell.
There are a few other molecules that are present in cell membranes such as cholesterol, proteins, and carbohydrates, but phospholipids are the most abundant. A phospholipid molecule has a hydrophilic head, which is attracted to water, and a hydrophobic tail, which is repelled by water. These properties enable phospholipids to form a bilayer, with the hydrophilic heads pointing outwards and the hydrophobic tails pointing inwards towards each other. This bilayer structure is the foundation of all biological membranes.
The cell membrane is made up of a phospholipid bilayer, and it serves as a barrier between the cell and the surrounding environment. The hydrophilic heads of the phospholipids face outwards and interact with the water inside and outside of the cell, while the hydrophobic tails face inwards and provide a barrier that prevents water-soluble substances from passing through. This selective permeability is vital to the cell, as it allows it to control what enters and exits the cell.
In summary, phospholipids are the most abundant molecules in the cell membranes of most species. They form a bilayer that provides a barrier between the cell and its environment, and regulate the flow of substances into and out of the cell.
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at which Number location on the map above great Zimbabwe be location?
1. 4
2. 3
3. 2
4. 1
Answers
Answer:
3. 2
Explanation:
Zimbabwe is a South African Country. This means Zimbabwe is definitely located around the southern part of Africa. It is also surrounded mostly by land, which means it is a landlocked country.
Also, it is a neighbor to the country of South Africa.
Therefore, the only possible location of Zimbabwe is the location numbered 2.
I need help I'm really behind because my computer broke. This is Earth Science Btw 15 Points
1. What type of weathering only changes the appearance and not the composition of substances/rock?
2. What is the process of a large chunk of ice breaking off of a glacier to form Icebergs called?
3. What type of weathering would you expect to see more of in cool, dry areas.
Answers
Answer:
1. Mechanical weathering breaks rocks into smaller pieces without changing their composition
2. Ice calving/glacier calving/iceberg calving
3. Physical weathering
Explanation:
What type of cross did Mendel use to determine the probability of offspring when investigating two characteristics at a time
Answers
Answer:
When the offspring in Mendel's experiment were self-crossed, the F2 offspring exhibited the dominant trait or the recessive trait in a 3:1 ratio, confirming that the recessive trait had been transmitted faithfully from the original P0 parent. Reciprocal crosses generated identical F1 and F2 offspring ratios.
Answer:
on ck12 - Dihybrid cross
Explanation:
i got it right
What cell structure do some eukaryotes and plant cells have that eukaryote animal cells do NOT have?
1. cell membrane
2. cell wall
3. ribosomes
4. cytoplasm
Answers
Answer:
The answer is 2.cell wall
Explanation:
Cell wall is only present in plant cell because it provide shape and rigidity to the plant cell and it allow any kind of substances to enter through it.
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A child has brown hair and brown eyes. His father
has brown hair and blue eyes. His mother has red
hair and brown eyes. The best explanation for the
child having brown hair and brown eyes is that
a. A gene mutation occurred that resulted in
brown hair and brown eyes
b. Gene expression must change in each
generation so evolution can occur
C. The child received genetic information from
each parent
d. Cells from his mother's eyes were present in
the fertilized egg
Answers
Answer:
A
Explanation:
The answer is A. sometimes that stuff happens
Answer:
a
Explanation:
I think because it might happen
Compare and Contrast Environmental Science and Environmentalism. Is it possible to have one without the
other?
Answers
Answer:
Compare and Contrast Environmental Science and Environmentalism. Is it possible to have one without the other?
The force of the blood against the walls of the arteries is known as.
Answers
which statement best describes the role of microorganisms such as rotavirus and attenuated salmonella enterica in the production of recombinant-vector vaccines? multiple choice question. they serve as vectors. they serve as adjuvants. they act as antigens, so these vaccines can protect against rotavirus or salmonella enterica.
Answers
The assertion best depicts the job of microorganisms, for model, rotavirus, and lessened salmonella enterica in the plot of recombinant-vector antibodies that act as vectors.
The MMR vaccine is an attenuated (weakened) live virus. This indicates that, prior to being eliminated from the body, the viruses only cause a mild, if any, infection following injection into the person who was vaccinated.
Vaccines that contain organisms that have been killed or inactivated by heat or chemicals are known as inactivated vaccines. In contrast to attenuated vaccines, inactivated vaccines elicit an immune response that is frequently less comprehensive.
The immune system responds to the antigen that is produced by the gene in the body.
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This organelle modifies and labels proteins so they will be working properly and arrive at the correct destinations? so whats the answer?
Answers
Answer:
\(\boxed {\tt Golgi \ apparatus}\)
Explanation:
After a protein is produced on a ribosome it is sent to the endoplasmic reticulum. Here, proteins fold and then are sent to the golgi apparatus.
In this organelle, proteins are modified and labeled. Sugar groups (modifications ) and tags/signals (labels) can be added. From the golgi apparatus they are sent to different destinations or secreted.
So, the correct answer is Golgi apparatus.
Golgi apparatus
The Golgi apparatus, which is usually situated near the nucleus, receives proteins and lipids from the ER, modifies them, and then dispatches them to other destinations in the cell. Transport from the ER to the Golgi apparatus—and the Golgi can either move onward through the Golgi stack or, if they contain an ER retention signal, be returned to the ER; proteins exiting from the Golgi are sorted according to whether they are destined for lysosomes (via endosomes) or for the cell surface.