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mart [117]
3 years ago
11

Some molecules are too big to pass through the phospholipid bilayer of the cell membrane. These molecules need to pass through _

_______________ that are embedded in the cell membrane. A) proteins B) ribosome C) cell wall D) carbohydrates
Biology
1 answer:
max2010maxim [7]3 years ago
6 0
Answer A because proteins help move large molecules through the cell membrane 
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4 years ago
2a) Which of the following statements about pyruvate oxidation IS TRUE?
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The true statements are:

  • Substrate level phosphorylation ocvurs during Pyruvate oxidation
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<h3>What is glucose oxidation?</h3>

Glucose oxidation refers to the process in the cells in which glucose molecules are oxidized to form ATP and carbon dioxide in the presence of oxygen.

The first stage of glucose oxidation is the conversion to pyruvate.

Pyruvate is oxidized to acetylCoA.

AcetylCoA enters the citric acid cycle to produce reducing equivalents, NADH for the electron transport chain.

  • The true statements about pyruvate oxidation is that there is substrate level phosphorylation during the process
  • When there is sufficient oxygen, 36 ATP molecules can be made (theoretically) by cellular respiration. However, when oxygen is lacking, only 2 ATP molecules are made.
  • In the electron transport chain of cellular respiration, electrons move from protein to protein due to increasing electronegativity
  • During oxidative phosphorylation, ADP is phosphorylated in the matrix of the mitochondria
  • Aerobic respiration can be regulated by feedback inhibition of pyruvate dehydrogenase by ATP.

Learn more about pyruvate oxidation at: brainly.com/question/22565849

#SPJ1

7 0
2 years ago
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Answer:

Antibiotics have helped in a speedy recovery for human illnesses over the past century.

Explanation:

Because anti biotics were not present centuries ago, many would get sick and even die. However, antibiotics work by affecting things that bacterial cells have but human cells don't. This helps to fight off the bacterial cells and fight infections and viruses, leading to a speedy recovery.

4 0
3 years ago
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Answer fast, please!! A, B, C, or D??
DedPeter [7]

Answer:

<h2><em><u>Option</u></em><em><u> </u></em><em><u>A</u></em><em><u> </u></em></h2>

Explanation:

As,

If alligators are shown as their increase in population in that pond so, more alligators which will eat more frogs which will lead in the decrease in their population.

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