1.) in which part of the mitochondrion does an electron transport chain occur?

a. matrix
b. cristae
c. inner membrane
d. outer membrane

2.) if there are five molecules of glucose that enters the cellular respiration process, how many ATP molecules are produced in glycolysis?

a. 10
b. 20
c. 30
d. 40

3.) why is oxygen essential in cellular respiration?

a. it serves as the final acceptor
b. it releases carbon dioxide
c. it needs to form water
d. it breaks down glucose

4.) which of the following is caused by the stiffness of those who are performing very strenuous activities in humans?

a. oxygen formation
b. temporary build-up of lactic acid
c. high oxygen level
d. presence of carbon dioxide

5.) you went inside the supper market when maria one of the customers, fainted due to hypoglycemia. which of the following products are you going to give her when she wakes up:

a. hot coffee
b. sweet candy
c. rice porridge
d. chicken sandwich
or option 2

6.) the anaerobic part of cellular respiration occurs in the__

a. cytoplasm
b. matrix
c. mitochondrial
d. nucleus

7.) krebs cycle is also known as__

a. oxygen cycle
b. citric acid cycle
c. carbon dioxide cycle
d. acetic acid cycle

8.) the following are stages of cellular respiration except;

a. calvin cycle
b. krebs cycle
c. electron transport chain
d. glycolysis
or option 2

9.) anaerobic respiration requires oxygen to break down glucose into energy

a. true
b. false

the main site of cellular respiration and also known as "the power house of the cell"

a. ribosomes
b. cytoplasm
c. mitochondria
d. cell wall
​