Proteins And Amino Acids

Question 1

Examples of hemoproteins

Answer 1

Hemoglobin, myoglobin
Cytochrome C / 450
Catalase
Tryptophan pyrrolase
NOS

Question 2

Remarks on glutamine

Answer 2

Amino acid that’s the major contributor to the transport of nitrogen destined for excretion as urea

Question 3

Remarks on alanine

Answer 3

The rate of hepatic gluconeogenesis from alanine exceeds that of any other amino acids

Question 4

Remarks on coenzyme A

Answer 4

Serine provides the thioehtanol moiety for biosyntheesis of coenzyme A

Question 5

Contributes to biosynthesis of creatine

Answer 5

Glycine
Arginene
Methionine

Question 6

Remarks on GABA

Answer 6

Decarboxylation of gutamate

Question 7

Remarks on acute intermittent porphyria

Answer 7

Mutation in the gene for uroporphyrinogen I synthase

Increased urinary d-aminolevulinate and porphobilinogen

Question 8

Remarks on bilirubin

Answer 8

Linear cyclic tetrapyrrole

Contains methyl and vinyl groups

Question 9

Structure of collagen

Answer 9

Gly-X-Y
Gly -Pro-Lys
Proline failitates kinking

Question 10

Collagen in viterous body

Answer 10

II

Question 11

Collagen in fetal tissue

Answer 11

III

Question 12

Collagen in uterus

Answer 12

III

Question 13

Collagen in skin

Answer 13

III

Question 14

Collagen in cornea

Answer 14

I

Question 15

Collagen in fascia

Answer 15

I

Question 16

Most common collagen defect in ehlers danlos

Answer 16

Type III —> hypermobility EDS

Question 17

Most serious collagen defect in EDS

Answer 17

Type III —> vascular EDS

Question 18

Classical EDS

Answer 18

Defect in types I and V collagen

-similar to hypermobility subtype but more severe skin abnormalities and less severe joint changes