Free Cell The Unit Of Life (Monthly Quiz: 1) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Plasma membrane is made of

(a) proteins, lipids and carbohydrates

(b) proteins and carbohydrates

(c) proteins and lipids

(d) proteins, some nucleic acid and lipids.

Question-2

The most important function of plasma membrane is that it

(a) Gives shape to the cell

(b) Divides the cell

(c) Transports the molecules across

(d) Both (a) and (b)

Question-3

Which is correct about cell theory in view of current status of our knowledge about cell structure?

(a) Cell theory does not hold good because all living beings (e.g., viruses) do not have cellular organisation.

(b) It needs modification due to discovery of subcellular structures like chloroplasts and mitochondria.

(c) Modified cell theory means that all living beings are composed of cells capable of reproducing.

(d) Cell theory means that all living objects consists of cells whether or not capable of reproducing.

Question-4

Mesosomes were taken as

(a) Mitochondria

(b) Golgi bodies

(c) Plastids

(d) Endoplasmic reticulum

Question-5

Assertion:
Chloroplast can synthesize proteins
Reason:
Chloroplast contains ribosomes.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-6

Match the items given in column-I with their role given in column-II and choose the correct option.

Column-I	Column-II
A. SER	I. Increase the surface area
B. Golgi apparatus	II. Store oils or fats
C. Cristae	III. Excretion
D. Peroxisome	IV. Photorespiration
E. Elaioplasts	V. Synthesis of lipid

Codes:

(a) A – V; B – III; C – II; D – IV; E – I

(b) A – V; B – III; C – I; D – IV; E – II

(c) A – II; B – III; C – I; D – IV; E – V

(d) A – III; B – IV; C – I; D – V; E – II

Question-7

Plasma membrane is

(a) Impermeable

(b) Selectively permeable

(c) Permeable

(d) Semi-permeable

Question-8

Identify the components labelled A, B, C and D in the diagram below from the list (i) to (viii) given along withComponents :

1. Cristae of mitochondria
2. Inner membrane of mitochondria
3. Cytoplasm
4. Smooth endoplasmic reticulum
5. Rough endoplasmic reticulum
6. Mitochondrial matrix
7. Cell vacuole
8. Nucleus

The correct components are:

	A	B	C	D
(a)	(v)	(iv)	(viii)	(iii)
(b)	(i)	(iv)	(viii)	(vi)
(c)	(vi)	(v)	(iv)	(vii)
(d)	(v)	(i)	(iii)	(ii)

(a) (a)

(b) (b)

(c) (c)

(d) (d)

Question-9

Where are the ribosomes found in prokaryotic cells?

(a) Mitochondria

(b) Cytoplasm

(c) Chloroplast

(d) All of these

Question-10

The fluidity of membranes in a plant in cold weather may be maintained by

(a) increasing concentration of cholesterol in membrane

(b) increasing the number of phospholipids with unsaturated hydrocarbon tails

(c) increasing the proportion of integral proteins

(d) increasing the number of phospholipids with saturated hydrocarbon tail

Question-11

The stain used to visualise mitochondria is

(a) acetocarmine

(b) fast green

(c) safranin

(d) janus green.

Question-12

Which of the following is not a characteristic of the fluid mosaic model for biological membranes?

(a) Membrane components that can move about

(b) Fluidity

(c) Components symmetrically distributed

(d) Structure reflects function

Question-13

Vacuole in a plant cell

(a) is membrane-bound and contains water and excretory substances

(b) is membrane-bound and contains storage proteins and lipids

(c) lacks membrane and contains air

(d) lacks membrane and contains water and excretory substances

Question-14

Element necessary for the middle lamella is

(a) K

(b) Ca

(c) Zn

(d) Cu.

Question-15

Which of the following membrane proteins are partially or totally buried in cell membrane?

(a) Peripheral proteins

(b) Integral proteins

(c) Both (a) and (b)

(d) Glycoproteins

Question-16

Which of the following does not belong to eukaryote?

(a) Bacteria

(b) Protists

(c) Fungi

(d) All of these

Question-17

The desmosomes are concerned with

(a) cell division

(b) cytolysis

(c) cell adherence

(d) cellular excretion

Question-18

Which of the following features is common to prokaryotes and many eukaryotes?

(a) Cell wall is present

(b) Chromosomes are present

(c) Nuclear membrane is present

(d) Membrane bound sub–cellular organelles are present.

Question-19

Basal bodies are associated with the formation of

(a) cilia and flagella

(b) phragmoplast

(c) cell plate

(d) kinetochore

Question-20

Which is correct about cell theory in view of current status of our knowledge about cell structure?

(a) Modified cell theory means that all living beings are composed of cells capable of reproducing

(b) It needs modification due to discovery of subcellular structures like chloroplasts and mitochondria

(c) Cell theory does not hold good because all living beings do not have cellular organisation (eg, viruses)

(d) Cell theory means that all living objects consist of cells whether or not capable of reproducing