D:-Cytosol, mitochondria and endoplasmic reticulum

Correct Answer:- Option-D
Question64:-Thymidylate synthase catalyse the conversion of dUMP to dTMP, which of the following donate the methyl
group?

A:-Methyl THF

B:-Methylene THF

C:-Formyl THF

D:-5AM

Correct Answer:- Option-B
Question65:-Suppose the number of carbon rings in an *"F_0/F_1"* ATP synthase is 12. Then the value of P/O ratio for NADH,
` "11^+"` च ` "701 2" respectively are

ಹಿ-2 8೧6 3,2

8:-2.5 800 1.5

C:-3and 2

D:-1.5 and 2.5

Correct Answer:- Option-A
Question66:-Beta oxidation of a 20C saturated fatty acid to *"CO_2"" generate which of the following number of reductants?

A:-8 NADH, *"H~+"" and 8 “"FADH_2"*

B:-9 NADH, ಸ

C:-10 NADH, ३०५ 10 ` "011 2"

D:-7 NADH, “"H~+"" and 7 *"FADH_2"

Correct Answer:- Option-B
Question67:-Mixed inhibition
is correct related to these

A:-In both mixed inhi

B:-In mixed inhibition
and Km unchanged

C:-In both mixed inhibition and non-competitive inhibition *"V_m_a_x"" and Km decreases

D:-In mixed inhibition *"V_m_a_x"" decreases and Km decreases, in non-competitive inhibition **V_m_a_x"* decreases
and Km increases

Correct Answer:- Option-B
Question68:-Which of the following RNA molecule is NOT a ribozyme?

A:-285 rRNA

B:-55 rRNA

C:-RNA part of RNase P

D:-Hammer head RNA

Correct Answer:- Option-B
Question69:-Carbonic anhydrase enzyme catalyse the production of carbonic acid from water and *"CO_2"* . Which of the
following is correct related to this enzyme?

A:-Carbonic anhydrase decreases the *"pK_a"" value of water

B:-Carbonic anhydrase increases the **pK_a"" value of water

செருக is the cofactor of carbonic anhydrase

D:-""Ca™2~+" is the cofactor of carbonic anhydrase

Correct Answer:- Option-A
Question70:-Which of the following is the ratio of phospholipid : sphingomyelin : cholesterol in 8 normal eukaryotic cell
plasma membrane?

ديم

B:-1.5:0.5:1

C:-0.5:1.5:1

D:-1:0.5:1.5

Correct Answer:- Option-B
Question71:-The absorption of ultraviolet (U} light {the absorbance at 280 nm} is often used as a measure of protein
concentration. The R-groups of which amino acids contribute most to absorption of 280 nm light?

A:-Ser, Thr, Cys

B:-Lys, Arg, His

C:-Trp, Tyr, Phe

D:-Ser, Ala, Glu

Correct Answer:- Option-C
Question72:-In a eukaryotic cell plasma membrane, different phospholipid preferentially localized to either cytosolic side or
exoplasmic side. Which of the following is the comrect orientation of phospholipids like phosphatidyl choline and phosphatidyl
inositol in cytosolic and exoplasmic side?

d non-competitive inhibition are of two types of reversible inhibition. Which of the following
110೧57

n and non-competitive inhibition *"v_m_a_x"" decreases and Km increases
_m_a_x"" decreases and Km increases, in non-competitive inhibition *"v_m_a_

" decreases