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3 years ago

Please take time to look ! Some of the oldest cells in the human body are found in the(1 point) colon. liver. heart. skin.

Biology

2 answers:

stira [4]3 years ago

7 0

The answer is heart!

Lina20 [59]3 years ago

4 0

Answer:

Explanation:

Hello friend!!!!

Here's your answer

Heart is found to have the oldest cells in the human body

Hope this helps

plz mark as brainliest!!!!!!

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Under anaerobic conditions, such as intense exercise, pyruvate is converted to ____________ . This 3-carbon molecule travels thr

stiv31 [10]

Answer:

Under anaerobic conditions, such as intense exercise, pyruvate is converted to lactate. This 3-carbon molecule travels through the blood to the liver, where it can be converted to glucose by the cori cycle.

Under aerobic conditions, pyruvate enters the mitochondrion, where it is converted to acetyle CoA . This 2-carbon molecule goes on to participate in a series of oxidative reactions called the Citric acid cycle.

Explanation:

In the question ,among the given 6 options ,the simplest way to find the answer can be ,to find either the option is aerobic (presence of free oxygen ) or anaerobic (lack of free oxygen). Among the options , glucose is an incorrect option as it is a carbohydrate and used in respiration process .In aerobic process ,the glucose can be break down but in anaerobic ,it can only be used.

Other option is ATP- ATP is the energy source of the cell and used for storing energy or reactions of the cell,thus this option do not belong to the given question.

thus its clear the rest four options are the answer .

among four two options belong to aerobic and the rest two are anaerobic.

Under anaerobic conditions-

The pyruvate is converted into lactate because under the absence of oxygen only the NAD+ can be regenerated, thus further can allow glycolysis.

The cori cycle is also called lactic acidic cycle, thus this cycle is a metabollic pathway produced by anaerobic glycolysis (which takes place by regeneration of NAD+)transporting the molecules from blood to liver and further converting to glucose

Under aerobic conditions,-

The pyruvate is converted into Acetyle CoA so as to further produce citric acid and then citric acidic cycle. Thus Acetyle CoA forms more ATP which help in the regeneration of NAD+ and production of citric acid cycle takes place.

HENCE , The correct options are - lactate cori acetyle CoA citric acid.

7 0

3 years ago

Maya's father told her that hummingbirds like to drink the nectar from red flowers. Maya noticed that most of the hummingbird fe

Genrish500 [490]

Answer:

The color of the birdfeeders

Explanation:

Independent variable is the variable in the experiment that is changed, so the only thing changed in this experiment is the colors of the bird feeders

6 0

3 years ago

Read 2 more answers

Help me pleaseeee!!???

umka21 [38]

Answer:

it A

Explanation:

pick A hopefully it right

3 0

3 years ago

An earthworm has a complete digestive system.

Tems11 [23]

1) C. Waste is removed through a designated opening.
2) A. A different kind of DNA decodes the information and disassembles the building blocks of the protein.
3) B. The muscle tissues will have to work much harder, and the individual muscles will tire more quickly.
4) A. Information in the DNA of the nucleus can tell muscle cells how to develop and perform special functions. A group of these cells that perform similar functions become muscle tissue.
Hope this helps:)

4 0

3 years ago

C) despite the similarities, methylene chloride is superior to ethylene chloride as an extraction solvent. why?

mario62 [17]

Despite the similarities, methylene chloride (or dichloromethane) is superior to ethylene chloride as an extraction solvent because the boiling point of methylene chloride is lower than the boiling point of ethylene chloride, which allows it to be removed more easily.

4 0

3 years ago