Metabolism and Biochemical Pathways Quiz
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Questions and Answers

Which enzyme synthesizes ATP during oxidative phosphorylation?

  • Phosphatase
  • Pyruvate dehydrogenase
  • Creatine kinase
  • ATP synthase (correct)

The main extramitochondrial source of NADH2 for ETC is:

  • Tricarboxylic acid cycle
  • Pentose phosphate pathway
  • Glycolysis (correct)
  • Pyruvate

Which metabolite is utilized in the TCA cycle?

  • Uric acid
  • Ammonia
  • Pyruvate
  • Acetyl-CoA (correct)

The reaction of substrate phosphorylation in the TCA cycle is catalyzed by:

<p>Succinyl-CoA synthetase (D)</p> Signup and view all the answers

The transfer of electrons to oxygen is catalyzed by:

<p>Cytochrome oxidase (C)</p> Signup and view all the answers

Which component of ETC is inhibited by cyanide?

<p>Cytochrome oxidase (A)</p> Signup and view all the answers

Hormone that increases the permeability of the cell membrane to glucose:

<p>Insulin (A)</p> Signup and view all the answers

Which carbohydrates perform primarily a structural function?

<p><strong>Glycosaminoglycans</strong> (A)</p> Signup and view all the answers

When galactose is phosphorylated in the liver, it forms:

<p>Galactose-1-phosphate (B)</p> Signup and view all the answers

In what tissues is glucokinase activity found?

<p>Liver (B)</p> Signup and view all the answers

What is anabolism primarily responsible for?

<p>Biosynthesis of compounds from simple molecules (A)</p> Signup and view all the answers

What is catabolism primarily involved in?

<p>Hydrolysis of biopolymers in the body (D)</p> Signup and view all the answers

Which of the following is an example of anabolic pathways?

<p>Biosynthesis of fatty acids (A)</p> Signup and view all the answers

What representatives of lipids are part of biological membranes?

<p>Phospholipids (B)</p> Signup and view all the answers

Which properties are characteristic of biological membranes?

<p>Selective permeability (B)</p> Signup and view all the answers

What phase state is characteristic of membrane lipids?

<p>Liquid crystal (A)</p> Signup and view all the answers

In facilitated diffusion, how are substances transferred through the membrane?

<p>Along the concentration gradient (C)</p> Signup and view all the answers

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