metabolism

Question 1

With every use of the electron transport chain there is formation of ____ ATP molecules

a. 2
b. 3
c. 4
d. 8

Answer 1

b. 3 ATP molecules

Question 2

what are the products of the Krebs cycle (TCA or citric acid cycle)

Answer 2

two carbon dioxide

one high enegy phosphate bind

3 NADH

1 FADH2

Question 3

oxidative phosphorylation occurs in the _______, glycolysis in the ________ and the TCA cycle in the ________.

choose the correct options

mitochondrial matrix

cytoplasm

inner mitochondria

mitochondrial membrane

Answer 3

oxidative phosphorylation occurs in the inner mitochondria, glycolysis in the cytoplasm and the TCA cycle in the mitochondrial matrix.

Question 4

Red blood cells do not contain an active mitochondrial electron transport system.

true or false?

Answer 4

true

Red blood cells do not contain an active mitochondrial electron transport system.

Question 5

the electron transport chain consists of a series of four large multiprotein complexes (I through IV) located in the outer mitochondrial membrane.

Answer 5

False

the electron transport chain consists of a series of four large multiprotein complexes (I through IV) located in the inner mitochondrial membrane.

Question 6

the ADP levels are independent of the rate of oxidative phosphorylation.

true or false?

Answer 6

False

the ADP levels controls the rate of oxidative phosphorylation.

Question 7

FACT

ATP formation is driven by a proton gradient across the inner mitochondrial membrane, a process called chemiosmotic coupling.

Question 8

what is the central molecule in carbohydate metabolism?

Answer 8

The monosaccharide glusocse is the central molecule in carbohydate metabolism

Question 9

glucose is synthesized from non-carbohydrate precursors and stored as ________

Answer 9

glucose is synthesized from non-carbohydrate precursors and stored as glycogen

Question 10

the fasting blood glucose level in normal individuals is _______

Answer 10

the fasting blood glucose level in normal individuals is 60-100 mg/dl

Question 11

which organ is known as the glucostats monitor

brain

liver

kidney

blood

the small intestine

Answer 11

liver plays an important role in monitoring and stabilizing blood glucose levels. Thus it is known as the glucostats monitor

Question 13

the enzymes for the glycolysis (Embden-Meyerhof pathway) are found in

inner mitochondria

cytosol

outer mitochondria

matrix of mitochondria

Answer 13

cytosol