Generate Quiz 6A9298A08D078

1 / 30

Arrange the following according to the level of protein structures:

a) lysozyme, b) haemoglobin, c) insulin, d) hairs.,

NTS 2019
Biology
Biological Molecules
Proteins
Elimination Tool:

A) d, a, c, b

B) a, b, c, d

C) d, c, b, a

D) c,d,a,b

2 / 30

Which of the following properties of amino acids is affected by a change in pH?

Biology
Biological Molecules
Proteins
Elimination Tool:

A) Oxidation of amino acids

B) Reduction of amino acids

C) Atomization of amino acids

D) ionization of amino acids

3 / 30

Lipids store double the amount of energy as compared to carbohydrates because of:

PMC 2020
Biology
Biological Molecules
Lipids
Elimination Tool:

A) High proportion of oxygen

B) High C-O ratio

C) Low proportion of Carbon

D) High proportion of C-H

4 / 30

Which property of water helps to maintain the integrity of lipid-containing membranes?

PMC 2020
Biology
Plasma Membrane
Biological Molecules
Elimination Tool:

A) Specific Heat Capacity

B) Hydrogen Bonding

C) Cohesion and Adhesion

D) Hydrophobic exclusion

5 / 30

Avidin is a protein that

PMC Sample 2
Biology
Biological Molecules
Proteins
Elimination Tool:

A) binds egg white with biotin

B) binds egg white with egg albumin

C) both a and b

D) this protein do not belong to egg white

6 / 30

What serves as a base of attachment for the cytoskeleton in some organisms?

PMC 2021 Tested
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Lysosomes

B) Ribosomes

C) Endoplasmic reticulum

D) Cell membrane

7 / 30

Where does the detoxification of harmful drugs occur?

PMC Practice 19
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) RER

B) SER

C) Golgi Bodies

D) Both A and B

8 / 30

Which of the following do not contain phosphodiester bond?

Biology
Biological Molecules
Elimination Tool:

A) DNA

B) ATP

C) RNA

D) NAD

9 / 30

A group of cells performing same function are known as:

NUMS 2016
Biology
Cell Structure and Function
Introduction to Cell and it’s theory
Elimination Tool:

A) Organelles

B) Tissues

C) A system

D) Both A and B

10 / 30

Cell wall is made up of:

NUMS 2016
Biology
Biological Molecules
Carbohydrates
Elimination Tool:

A) Cellulose

B) Cell

C) Ribosomes

D) Penicillin binding protein

11 / 30

An enzyme can:

2022 PMC Test 3
Biology
Enzymes
Elimination Tool:

A) Maintain the biochemical reaction

B) Decrease the biochemical reaction

C) Lower the need of activation energy

D) Be the substitute of activation energy

12 / 30

Chief material present in the cell wall of plants, fungal, and prokaryotic cells is:

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

A) Proteins

B) Lipids

C) Polysaccharides

D) Phospholipids

13 / 30

Which of the following cell type is more appropriate to study mitochondrial :

Biology
Cell Structure and Function
Elimination Tool:

A) RBC

B) Muscle cell

C) Mesophyll cell

D) E.coli

14 / 30

Which of the following is NOT a difference that would allow one to distinguish between a prokaryotic and a eukaryotic cell?

Presence or absence of the nucleus
Presence or absence of the cell wall
Membrane bound versus no membrane bound organelles
NTS 2013
Biology
Cell Structure and Function
Prokaryotic and Eukaryotic Cells
Elimination Tool:

A) I only

B) II only

C) III only

D) I and II only

15 / 30

Arrange the following according to the level of protein structures:

a) lysozyme, b) haemoglobin, c) insulin, d) hairs.,

NTS 2019
Biology
Biological Molecules
Proteins
Elimination Tool:

A) d, a, c, b

B) a, b, c, d

C) d, c, b, a

D) c,d,a,b

16 / 30

Coagulated protein is:

PMC 2021 Tested
Biology
Biological Molecules
Proteins
Elimination Tool:

A) All of these

B) Non-folded

C) Non-soluble

D) Non-functional

17 / 30

Lipids show solubility in which of the following solvents?

PMC Sample 3
Biology
Biological Molecules
Lipids
Elimination Tool:

A) water

B) ether

C) inorganic solvents

D) all solvents

18 / 30

Glycine is:

PMC 2021 Tested
Biology
Biological Molecules
Proteins
Elimination Tool:

A) Zwitter ion

B) Basic

C) Acidic

D) None of these

19 / 30

Waterproof surfaces like cuticle of leaf and protective covering of an insect’s body are

UHS 2014
Biology
Biological Molecules
Elimination Tool:

A) Phospholipids

B) Waxes

C) Terpenoids

D) Acylglycerols

20 / 30

A globular protein consisting of more than one polypeptide chains belongs to:

Biology
Biological Molecules
Elimination Tool:

A) Primary structure

B) Secondary structure

C) Tertiary structure

D) Quaternary structure

21 / 30

Nucleotides are building blocks of nucleic acids.
Each nucleotide is a composite molecule formed
by

Biology
Biological Molecules
Nucleic Acids
Elimination Tool:

A) base sugar phosphate

B) base sugar OH

C) bases

D) sugar phosphate.

22 / 30

The place of centromere where spindle fibres get attached is?

PMC Practice 16
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Kinetochore

B) Tilomere

C) Centromere region

D) All of these

23 / 30

Which of the following is a unique characteristic of prokaryotic cells?

PMC Practice 2
Biology
Cell Structure and Function
Prokaryotic and Eukaryotic Cells
Elimination Tool:

A) Lack of a cytoplast

B) Presence of a cell wall

C) Inability to create proton gradients

D) mRNA translation simultaneous to transcription

24 / 30

Which of the following basic structural level of proteins is indicated by an association of two alpha and two beta chains in the haemoglobin molecule?

NTS 2018
Biology
Biological Molecules
Proteins
Elimination Tool:

A) Primary structure

B) Secondary structure

C) Tertiary structure

D) Quatenary Structure

25 / 30

The lock and key model of enzyme action was proposed by:

PMC Sample 3
Biology
Enzymes
Elimination Tool:

A) Louis Pasteur

B) Emil Fischer

C) Daniel Koshland

D) Urey Miller

26 / 30

If more substrate is added to an already occurring enzymatic reaction, then more enzyme activity is seen because of which of the following?

PMC Practice 36
Biology
Enzymes
Factors affecting the rate of Enzyme Action
Elimination Tool:

A) There is probably more substrate present than there is enzyme

B) There is probably more product present than there is either substrate or enzyme

C) The enzyme-substrate complex is probably failing to form during the reaction

D) There is probably more enzyme available than there is substrate

27 / 30

Malonic acid is an example of which type of inhibitors?

PMC Practice 16
Biology
Enzymes
Elimination Tool:

A) Irreversible Inhibitor

B) Reversible Inhibitor

C) Non-competitive Inhibitor

D) Competitive Inhibitor

28 / 30

Which property of water helps to maintain the integrity of lipid-containing membranes?

PMC 2020
Biology
Plasma Membrane
Biological Molecules
Elimination Tool:

A) Specific Heat Capacity

B) Hydrogen Bonding

C) Cohesion and Adhesion

D) Hydrophobic exclusion

29 / 30

Chitin is a

ETEA 2019
Biology
Biological Molecules
Carbohydrates
Elimination Tool:

A) Lipoprotein

B) Polysaccharides

C) Glycoprotein

D) Phospholipids

30 / 30

How many Hydrogen bonds are there in a Cytosine-Guanine pair?

PMC Practice 10
Biology
Biological Molecules
Nucleic Acids
Elimination Tool:

A) 0

B) 1

C) 2

D) 3

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