Free Cell The Unit Of Life (Monthly Quiz: 2) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Plastids are found in

(a) All animal cells

(b) All plant cells

(c) Euglenoids

(d) Both (a) and (c)

Question-2

Which is distributed more widely in a cell?

(a) Chloroplasts

(b) DNA

(c) RNA

(d) Sphaerosomes

Question-3

Which one of the following is not considered as a part of the endomembrane system?

(a) Vacuole

(b) Golgi complex

(c) Peroxisome

(d) Lysosome

Question-4

Which of the following is correct about vacuole?

(a) In plant cell the vacuole can occupy up to 90 per cent of the volume of the cell.

(b) Vacuole contain water sap, excretory product and other material not useful for the cell.

(c) The vacuole is bounded by tonoplast.

(d) All of these

Question-5

Study the following statements on cilium or flagellum and answer the question.

1. Cilium / Flagellum contains an outer ring of nine doublet microtubules surrounding two singlet microtubules.
2. Cilia are smaller which work like oars, causing the movement of either the cells or surrounding fluid.
3. Flagella are comparatively longer and responsible for cell movement.
4. Cilium and flagellum are covered with plasma membrane.

Which of the above statements are correct?

(a) (i), (ii), (iii) and (iv)

(b) (i) and (ii)

(c) (i) and (iv)

(d) (ii) and (iii)

Question-6

Aleuroplasts, amyloplasts and elaioplasts

(a) Help in photolysis of water

(b) Divide by multiple fission

(c) Store protein, starch and fat respectively

(d) Store reserve food and pigments

Question-7

Assertion:
Cell is fundamental structural and functional unit of all living organisms.
Reason:
A complete structure of cell does not ensure independent life

(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-8

The solid linear cytosketetal elements having a diameter of 6 nm and made up of a single type of monomer are known as

(a) Microfilaments

(b) Microtubules

(c) Intermediate filaments

(d) Lamins

Question-9

The site of respiration in bacteria is

(a) episome

(b) ribosome

(c) microsome

(d) mesosome.

Question-10

Select the incorrect pair from the following:

(a) Amyloplast-Starch

(b) Leucoplast-Carotene

(c) Elaioplast-Oils

(d) Aleuroplasts–Proteins

Question-11

Experiments on Acetabularia by Hammerling proved the role of

(a) chromosomes in heredity

(b) cytoplasm in controlling differentiation

(c) nucleus in heredity

(d) nucleo-cytoplasmic ratio

Question-12

What is true about ribosomes ?

(a) These are self-splicing introns of some RNAs

(b) These are found only in eukaryotic cells

(c) The prokaryotic ribosomes are 80s where”S” stands for sedimentation coefficient

(d) These are composed of ribonucleic acid and proteins

Question-13

Which one of the following is not an inclusion body found in prokaryotes ?

(a) Glycogen granule

(b) Cyanophycean granule

(c) Polysome

(d) Phosphate granule

Question-14

Smooth endoplasmic reticulum is well developed in the cells which synthesize

(a) carbohydrates

(b) steorids

(c) proteins

(d) all of these.

Question-15

The amount or number of mitochondria in a cell depends on

(a) Size of the cell

(b) Anatomical structure of cell

(c) Colour and contour of the cell

(d) Physiological activity of cell

Question-16

Cytoskeleton helps in

(a) Providing mobility to cell

(b) Mechanical support to cell

(c) Maintenance of shape of cell

(d) All of these

Question-17

In which of the following does active transport take place?

(a) Carrier protein transport

(b) Pumps

(c) Ion channels

(d) Diffusion

Question-18

Which of the following statements is not true for plasma membrane?

(a) Lipid is present as a bilayer in it.

(b) It is present in both plant and animal cells.

(c) Proteins are present in integrated as well as loosely associated with the lipid bilayer.

(d) Carbohydrate is never found in it.

Question-19

Microtubules absent in

(a) centriole

(b) mitochondria

(c) flagella

(d) spindle fibres

Question-20

Which of the following feature is not associated with centrosome?

(a) Two centriole

(b) Pericentriolar material

(c) Two cylindrical structures

(d) Lipid bilayer covering