Which of the following statements is/are TRUE about the reaction catalyzed by the pyruvate dehydrogenase complex? Select ALL that are TRUE.
1. It takes place in the cytoplasm
2. It is an oxidative decarboxylation
3. It is highly exergonic and essentially irreversible in vivo
4. It produces acetyl-CoA

Answer:

Number 4 here.click on the picture

Explanation:

When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale

Answer:

When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale

Explanation:

Pi or inorganic phosphate is released from ATP and therefore provides energy.

It is the energy-carrying molecule found in the cells of all the living things. It is a nucleotide, which comprises three main parts, that is,

The tail of phosphate is the actual source of energy, which is tapped by the cell. The accessible energy is present within the bonds between the phosphates and is discharged when the bonds are dissociated. It takes place via the supplementation of a water molecule, the process known as hydrolysis.

Generally, only the outer phosphate is withdrawn from the ATP to produce energy, when this takes place ATP get transformed to ADP or adenosine diphosphate.

Thus, the correct answer is option B, that is, Pi.

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Answer: The phrase that correctly answers your question is "Include quartzite and marble"

Explanation:

Brown fat cells produce a protein called thermogenin, which facilitates the diffusion of protons across the mitochondrial inner membrane. When thermogenin is present in the inner mitochondrial membrane of brown fat cells, it generates heat through a process called non-shivering thermogenesis.

Brown fat cells, also known as brown adipocytes, are specialized cells that are found primarily in hibernating animals and human infants. Unlike white fat cells, which store energy in the form of triglycerides, brown fat cells generate heat through a process called thermogenesis. This process is mediated by the protein thermogenin, which is found in the inner mitochondrial membrane of brown fat cells.

Thermogenin functions as an ion channel that allows protons to diffuse across the inner mitochondrial membrane, uncoupling the proton gradient from ATP synthesis. This results in the generation of heat instead of ATP, a process known as non-shivering thermogenesis.

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Answer:

They get energy

Answer:

The number of deer and rabbits in the area will be lower than last year.

Answer:

The reason why I chose this answer was:It was too cold the animals wouldn't come out many

Cell division is a crucial biological process that can be categorized into two types: asexual reproduction and sexual reproduction. Asexual reproduction occurs through mitosis in somatic cells, while sexual reproduction involves meiosis, which produces gametes for the formation of a new organism.

Asexual reproduction involves mitosis, a process where a single cell divides into two identical daughter cells, each containing the same genetic material as the parent cell. This type of cell division occurs in somatic cells, which are the non-reproductive body cells responsible for the growth, repair, and maintenance of tissues.

On the other hand, sexual reproduction involves meiosis, a type of cell division that reduces the number of chromosomes by half, resulting in four genetically unique daughter cells called gametes. Gametes, which include sperm and egg cells, are responsible for sexual reproduction as they combine to form a new individual with a complete set of chromosomes.

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Answer:

A congenital heart defect (CHD) is a heart problem that a baby has at birth. It is caused by abnormal formation of the heart during growth in the womb. In most cases, when a baby is born with a congenital heart defect, there is no known reason for it. Some types of congenital heart defects can be linked to an abnormality in the number of a baby’s chromosomes. They may be linked to single gene defects. Or they may be linked to environmental factors. In most cases, there is no clear cause that can be found for the heart defect. They are often thought to be caused by many factors. The factors are usually both genes and the environment. This means that genes from both parents plus unknown environmental factors lead to the problem.

Explanation:

Answer: DNA Synthesis

In many cancer cells, the number of chromosomes is altered so that there are either too many or too few chromosomes in the cells. These cells are said to be aneuploid. Errors may occur during the DNA replication resulting in mutations and possibly the development of cancer.

Explanation:

The option that is not a characteristic of the source of rivers and streams is D)Murky Water

Let us discuss more about the characteristics of the source of rivers and streams.

What is the source of a river?

A River is any natural stream of water that flows in a channel with defined banks. Modern usage includes rivers that are multi-channeled, intermittent, or ephemeral in flow and channels that are practically bankless.

The source of the river is the point from where a river starts flowing. It is usually a high point on the land from where water flows downward and begins its journey to join another water body or the sea.

The characteristics of the source of rivers and streams are as follows:

1. Cooler temperatures - Rivers and streams originate in the mountains where temperatures are low and cold. So, the water is usually very cold.

2. High oxygen levels - Because the water comes from a higher altitude, it contains more dissolved oxygen.

3. Freshwater fish - Rivers and streams are the natural habitats of freshwater fish such as trout, bass, and salmon.

4. High speed - As rivers and streams move down the mountains, the speed of the water increases because of gravity.

5. Small width - The width of the river or stream is small as it has just begun its journey from the source.

Thus, From the following options A) high oxygen levels B) freshwater fish C) cooler temperatures and D) Murky waters , Option D) Murky Waters is NOT a characteristic of the source of rivers and streams.

therefore, the correct option is D)Murky waters.

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A pandemic disease caused by a new pathogen affects a larger number of people because people are not immune to it.

Unlike an older pathogen, the immune system has not been exposed to a new pathogen, so it does not have the antibodies to fight it off. This makes it easier for the new pathogen to spread rapidly among people who have not developed immunity. Additionally, a new pathogen is often more virulent and contagious, causing people to show symptoms faster and allowing it to spread more easily.

Furthermore, a new pathogen may be able to mutate quickly, allowing it to evade the immune system and making it harder to control. Lastly, a new pathogen may be different from other pathogens and may require a different approach for treatment and prevention, adding to the challenge of controlling its spread. Overall, a new pathogen poses a significant threat to global health, and early detection and appropriate measures are essential to minimizing its impact.

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Answer:

hemophilia is represented by a lowercase h

Explanation:

because it is a recessive trait and not a dominant one

Answer:

the answer is a lowercase h

During the Cretaceous period, high temperatures and abundant vegetation resulted in increased \(CO_2\) levels, leading to the accumulation of organic matter and the formation of good source rocks for oil and gas.

During the Cretaceous period, spanning from approximately 145 to 66 million years ago, the global carbon-climate cycle played a crucial role in the development of favorable conditions for the formation of good source rocks. The period was characterized by high global temperatures and abundant vegetation, resulting in increased carbon dioxide \((CO_2)\) levels in the atmosphere.

The elevated \(CO_2\) levels fueled vigorous photosynthesis, leading to the accumulation of organic matter in marine and terrestrial ecosystems. As this organic matter was buried and subjected to heat and pressure over millions of years, it transformed into oil and gas, creating potential source rocks. The warm climate and prolific vegetation during the Cretaceous, along with the subsequent geological processes, contributed to the formation of the rich hydrocarbon reserves that are vital to our energy resources today.

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The correct question is:

Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)

Yes, some flowering plants can be a color other than green. While most plants have green leaves due to the presence of chlorophyll, there are flowering plants that exhibit different colors such as red, yellow, purple, or blue.

These colors are the result of pigments called anthocyanins and carotenoids present in the plant cells. Anthocyanins produce red, purple, or blue colors, while carotenoids contribute to yellow and orange hues.

Despite having pigments that give them vibrant colors, these flowering plants still contain chlorophyll.

However, the pigments may mask the green color of chlorophyll, resulting in leaves or petals that appear differently colored.

The presence of chlorophyll is crucial for photosynthesis, allowing the plant to convert sunlight into energy even in non-green parts.

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Climate science is a combination of both historical science and operational science. Climate science involves understanding the Earth's past climate and current climate and predicting future changes.

Operational science is focused on studying current natural phenomena, while historical science examines past events that are not currently happening or can't be observed anymore. Climate science combines the two as it studies past climate changes and current climate changes, and uses that information to make predictions about the future. Hence, climate science is both historical science and operational science.

A person's worldview can affect how they view climate change. For example, those who believe that human beings are the primary cause of climate change may advocate for increased environmental protection measures. Others may be more skeptical about the role of human activity in climate change, believing that it is part of a natural cycle that has happened before. Still, others may deny the existence of climate change entirely, believing that it is a hoax or exaggeration by the media or scientists.  I believe that climate change is real and largely caused by human activity, but I understand that others may have different views based on their worldview and experiences. It is essential to consider different perspectives and gather as much information as possible to make informed decisions about how to address climate change.

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Answer:

when salmonella bacteria are ingested, they pass through a person's stomach and colonize the small and large intestine. there, the bacteria invade the intestinal mucosa and proliferate. the bacteria can invade the lymphoid tissues of the gastrointestinal tract and spread to the bloodstream.

Answer:

False

Explanation:

An acquired trait is the character developed in an individual as a result of environmental influence. These traits are not coded by the DNA of a living organism and therefore cannot be passed on to future generations.

The number that represents DNA synthesis in the figure would be II.

DNA synthesis happens at the S phase in the interphase of the cell cycle, just after the G1 or cell growth phase and before the G2 or protein synthesis phase.

During the S phase, the amount of DNA in the cell doubles as replication of DNA takes place. However, the number of chromosomes remains constant.

The doubling of the amount of DNA is responsible for the sharp rise in the line that represents the amount of DNA in the figure. Thus, the region of a steep rise in the amount of DNA would represent the DNA synthesis phase.

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Answer:

The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top.

Explanation:

The principle of superposition states that in an undeformed sequence of sedimentary rocks, each layer of rock is older than the one above it and younger than the one below it (Figures 1 and 2). Accordingly, the oldest rocks in a sequence are at the bottom and the youngest rocks are at the top.

☁️ Answer ☁️

Lowest.

the lowest stratum tend to have the slowest-moving creatures; above them are faster ones. Evolutionary scientists declare these lowest strata are many millions of years old (570 million for the oldest, the Cambrian), and the topmost to be the most recent.

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Answer:

Water and Wind

Explanation:

Erosion is caused by water wind and ice.

Answer:

True!

Explanation:

Hope this helps!

Answer:

True

Explanation:

Answer:

Hydrosphere

Explanation:

Answer:

The answer is hydrosphere because hydro means water.

Explanation:

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If an oak tree has 6 chromosomes in its reproductive cells, then it means that it has 12 chromosomes in its somatic cells. This is like this because reproductive cells are generated by meiosis, which is a reductional cell division, producing four cells with half of the genetic material of the original cell and different from each other.

The factors that are most important for controlling the growth of organisms are limiting factors. Limiting factors are the factors that limit the growth of a population of organisms. These factors can either be biotic (living) or abiotic (non-living) factors.
The most common limiting factors are:Availability of water: Water is essential for growth. Lack of water can lead to dehydration and eventually death, which limits the growth of an organism. pH: The pH level of soil or water is essential for growth. A pH level that is too high or too low can limit the growth of an organism. Temperature: Temperature is also an essential factor for growth. Too high or too low temperatures can limit the growth of an organism. Nutrient availability: Nutrients are required for the growth of organisms. Lack of nutrients can limit the growth of an organism. Competition: Competition for resources can limit the growth of an organism. Predators: Predators can limit the growth of an organism by killing it or reducing its population size. Disease: Disease can limit the growth of an organism by killing it or reducing its population size.

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Answer:

50%

Explanation:

its a chance but not likely

because its not dominant