1403 - Home assigment week 5-6

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1

To answer this question, first click here to view the associated animation.

The final fate of electrons in the electron transport chain is combining with _____ to form _____.

hydrogen, ATP

carbon, carbon dioxide

oxygen, water

None of these

oxygen, water

2

To answer this question, first click here to view the associated animation.

The majority of ATP is produced by which step of cell respiration?

Krebs cycle

Formation of acetyl CoA

Glycolysis

Electron transport chain

Electron transport chain

3

Which of the following is anabolism?

Oxidation of amino acids

Translation

Glycolysis

Oxidation of fatty acids

Translation

4

An oxidation reaction

results in the loss of hydrogen atoms in most biologic systems.

adds electrons to a molecule.

increases the potential energy of a molecule.

allows conversion of ATP to ADP.

occurs in conversion of pyruvic acid into lactic acid.

results in the loss of hydrogen atoms in most biologic systems.

5
card image

ATP is produced

1. in the Krebs cycle through substrate-level phosphorylation of GTP.
2. in the electron transport chain through oxidative phosphorylation.
3. during the series of glycolytic reactions converting glucose to fructose 1, 6-bisphosphate.

---

1 only

2 only

3 only

1 and 2 are correct

1, 2, and 3 are correct

1 and 2 are correct

6

The most abundant product of the reactions of the Krebs cycle is

---

Pyruvate

Carbon dioxide

GTP

Reduced coenzymes

Water

Reduced coenzymes

7

ADP is converted to ATP via a process called

---

oxidation.

dephosphorylation.

phosphorylation.

none of these.

phosphorylation.

8

Which of the following will not stimulate lipolysis?

----

Cortisol

Insulin

Epinephrine

Human growth hormone

Insulin

9

Acetyl CoA formed by beta oxidation of fatty acids can be used to generate ATP during

------

Glycolysis.

The Kreb’s Cycle.

Fermentation.

All of these.

The Kreb’s Cycle

10

Hydrolyzed amino acids can be converted into proteins via translation which uses all of the following except

-----

peroxisomes.

mRNA.

ribosomes.

tRNA.

peroxisomes

11

This portion of a DNA segment does not code for a protein.

----

RNA

Introns

Exons

Polyribosome

Ribosome

Introns

12

he following is a particular sequence of codon on mRNA: ACU. What is the corresponding anti-codon for the tRNA?

UGA

UCA

TGA

TCA

AUC

UGA

13

Paracrines

are secreted into the blood stream

are secreted into a duct

act on the neighboring cell

act on the cell that secreted them

act on the neighboring cell