Biochem 2 Flashcards Preview

Boards Part 1 Practice questions > Biochem 2 > Flashcards

Flashcards in Biochem 2 Deck (79)
Loading flashcards...
1

Extracellular ammonia is transported from skeletal muscle to the liver by?
A. L—Ornithine
B. L—Ketoglutarate
C. L—Glutamate
D. L—Alanine

D. L—Alanine

2

The molecule that enzymes act upon is known as?
A. Product
B. Proteins
C. Amino acids
D. Substrate

D. Substrate

3

Which is a product of Pyruvate and can inner the TCA cycle?
A. Acetyl CoA
B. CO2
C. Isocitrate
D. Oxaloacetic

A. Acetyl CoA

4

The Monosaccharide in the structure is a?
C==OOH
C
C
C
C==OH
A. Aldohexose
B. Pentohexose
C. Ketopentose
D. Ketohexose

C. Ketopentose

5

Which disease would occur if there was a deficiency in the enzyme for the conversion of Phenylalanine to tyrosine?
A. Maple syrup urine disease
B. Phenylketonuria
C. Tyrosemia
D. Ketohexose

B. Phenylketonuria

6

Pantothentic acid is necessary for production of?
A. Coenzyme A
B. Amino acids
C. Cobalamine
D. Cytochrome B

A. Coenzyme A

7

As the density of lipoproteins is increased ? decreases and ? increases?
A. Protein, sterol
B. Tricylycerol, sterol
C. Triacylglycerol, proteins
D. Protein, triacylgycerol

C. Triacylglycerol, proteins

8

Which is responsible for carboxylation Rx?
A. Pyrodoxine
B. Biotin
C. Thiamine
D. ATP

B. Biotin

9

Which is the active form of folate?
A. Folic acid
B. Folacin
C. Dihydrofolate
D. Tetrahydrofolate

D. Tetrahydrofolate

10

DNA complementary strand would be which for 5’ ATGCTACG 3’
A. 5’ TACGATGC 3’
B. 5’ UACGAUGC 3’
C. 3’ TACGATGC 5’
D. 3’ UACGAUGC 5’

C. 3’ TACGATGC 5’

11

Which is considered to be the most saturated?
A. Coconut oil
B. Corn oil
C. Sunflower oil
D. Safflower oil

A. Coconut oil

12

Which is lacking in the strict vegetarian’s diet?
A. Vitamin D. 
B. Ascorbic acid
C. Cobalamine
D. Tocopherol

C. Cobalamine(B12)

13

Which is an important adjunct in the absorption of glucose?
A. Chromine
B. Selenium
C. Magnesium
D. Zn

A. Chromine Assists insulin

14

Which is the best source of dietary vitamin C.?
A. Eggs and oil
B. Broccoli and fruit
C. Pork
D. Cereals and grain

B. Broccoli and fruit

15

Glucose is highest in which of the following foods?
A. Eggs
B. Soy
C. Cereals 
D. Animal liver 

C. Cereals

16

Beta oxidation occurs in __ and is a ___ process?
A. Cytoplasm, oxidation
B. Mitochondria, reduction
C. Ribosomes, reduction
D. Muscles, isotonic

B. Mitochondria, reduction

17

Which vitamin required for the uptake of Lipoproteins in the intestines?
A. B. 5
B. B-1
C. C.
D. K.

D. K.

18

a deficiency of vitamin B12 causes what kind of anemia?
A. Pernicious
B. Microcytic
C. Hypochromic
D. Hyperchromic

A. Pernicious

19

Which is responsible for forming D-oxyribose for ribonucleic acid
A. Oxidation
B. Reduction
C. Decarboxylation
D. Transamination  B6

A. Oxidation

20

What cycle contains coenzyme Q?
A. Glycolysis
B. TCA
C. Electron transport chain
D. Urea cycle

C. Electron transport chain

21

Anaerobic Glycolysis yields how many ATP?
A. 0
B. 2
C. 6
D. 8

B. 2

22

Ketones results from?
A. Glycolysis of glucose
B. Gluconeogenesis of amino acids
C. Beta oxidation
D. Incomplete oxidation of fats

D. Incomplete oxidation of fats

23

Which are pyrimidines?
A. Uracil, cytosine
B. Thiamine, adnine
C. Adnine, guanine
D. Guanine, cytosine

A. Uracil, cytosine

24

What type of bond holds DNA strands together
A. H
B. Ester
C. S
D. Peptide

A. H

25

Which is the limiting amino acid in grains?
A. Lysine
B. Methionine
C. Leucine

A. Lysine

26

Which is the function of ascorbic acid?
A. Increased iron absorption
B. Decreased iron absorption

A. Increased iron absorption

27

Malate is off the by which of the following
A. Citrate
B. Oxaloacate
C. Isocitrate
D. Succinate

B. Oxaloacate

28

Which provides nicotinamide?
A. Serotonin
B. Methionine
C. Lysine
D. Glycine

A. Serotonin

29

All amino acids at a pH of 7 has its isoelectric point at a pH of 6, therefore it will be?
A. In the form of a Zwitter ion
B. Negatively charged
C. Positively charged
D. It’s isoelectric point

B. Negatively charged

30

A 100Kg adult male requires approximately how many g. of dietary protein per day?
A. 20
B. 40
C. 75
D. 150

C. 75