BIOCHEM QUIZ Q

Question 1

How many C,H,O atoms does the simplest form of carbohydrate contain respectively?

Answer 1

glycol aldehyde: 1, 2, and 1

Question 2

storage form of glucose in animals

Answer 2

glycogen

Question 3

storage form of glucose in plants

Answer 3

starch

Question 4

the advantage of a Fisher-Haworth projection of glucose is that:

Answer 4

it is thermodynamically stable

Question 5

an epimerization of the 4th carbon of glucose mol is described by

Answer 5

D-Galactose

Question 6

gives colorimetric reaction when glucose oxidase is used

Answer 6

ortho-toluidine

Question 7

is the product yielded when glucose is acted upon glucose oxidase

Answer 7

hydrogen peroxide or H202

Question 8

acts as an enzyme that breaks down H202

Answer 8

peroxidase

Question 9

most specific and most preferred enzymatic reaction for glucose

Answer 9

enzyme catalyzes the reaction between glucose and g-6-p (HEXOKINASE)

Question 10

What is the reason as to why the increase in presence of NADH equitable to the increase of Glucose concentration?

Answer 10

according to the principle of Hexokinase, Glucose is converted into other substrates which is further catalyzed would yield a NADH by product

Question 11

what enzyme catalyzes the formation of a 6-carbon structure from Oxaloacetate

Answer 11

Citrate Synthase

Question 12

the reduced form of NAD contains an additional _ ion

Answer 12

H ion

Question 13

reaction involved in fumarse

Answer 13

hydration reaction

Question 14

the deficiency of this enzyme would accumulate the presence of oxaloacetate

Answer 14

CITRATE SYNTHASE

Question 15

what mol is added together with fumarase to form L-Malate

Answer 15

water

Question 16

the oxidation of this substrate is common as to the other pathways such as in beta-oxidation of fatty acids

Answer 16

succinate

Question 17

from which substrate is isocitrate derived

Answer 17

cis-aconitate

Question 18

this enzyme is necessary for the interconversion of the mols necessary to start the oxidoreductive-phosphorylation stage of Glycolysis

Answer 18

Triose Phosphate Isomerase (TPI)

Question 19

when muscles contract in anaerobic condition, this molecule begins to disappear

Answer 19

Glycogen

Question 20

the presence of this mol indicates the capability of the tissue to produce glucose from non-carbohydrate sources

Answer 20

Fructose-6-Phosphate

Question 21

which enzyme is a lyase

Answer 21

ALDOLASE

Question 22

which enzyme marks the 1st state of ATP production in GLYCOLYSIS

Answer 22

PHOSPHOGLYCERATE KINASE

Question 23

Enolase inhibitor

Answer 23

FLUORIDE

Question 24

this product is the merging point where the CAC meets the Glycolytic pathway

Answer 24

Pyruvate

because succinyl-coa is not in the glycolytic pathway, it is only in CAC

Question 25

the process of glycogenesis in the muscle is mediated by the enzyme

Answer 25

HEXOKINASE

Question 26

Increase in Glycogen: Decrease in available Glucose

Answer 26

FALSE. Glycogen did not decrease Glucose, but stored it

Question 27

G1P interacts with these exogenous substrates to start the formation of the glycogen primer

Answer 27

Uridine Triphosphate, Pyrophosphate

Question 28

catalyzes the formation of glycoside bond

Answer 28

glycogen synthase

Question 29

in cleaving the formed linkages in Glycogen, an enzyme is needed to form such process. what COENZYME is involved?

Answer 29

PYRIDOXAL PHOSPHATE

Question 30

GFP from ____ can not be excreted into the blood stream

Answer 30

muscle