PRACTICE TEST - 1 - CHAPTER 5

Welcome to your Ncert - class 9- science-Chapter 5 – The Fundamental Unit of Life

Statement I : All prokaryotes have a cell wall, eukaryotes do not.

Statement II : Prokaryotes have a true nucleus, eukaryotes have a primitive nucleus.

Both statement I and statement II are true but statement II is not the correct explanation of statement I.

Both statement I and statement II are true and statement II is the correct explanation of statement I.

Both statement I and statement II are false.

Statement I is true but statement II is false.

None

In a plant cell, cytokinesis occurs by

Separation of the cytoplasm throughout the equatorial plane simultaneously

Separation of the cytoplasm from the periphery to central region

Separation of the cytoplasm from cell centre to its periphery

Furrowing of cytoplasm from two sides at right angles to the plane of spindle pole

None

If the mother cell cell has 24 chromosomes, the 2 daughter cells formed after mitosis will have ______ chromosomes.

None

Root hairs absorb water from soil through_______________

Osmosis

All of the above

Imbibition

Diffusion

None

The smallest cell is a _____________ measured between 0.1 to 0.5 micrometre in size.

RBC

Fungi

Virus

Bacteria

None

What is membrane biogenesis?

Process of building cell membrane

Process of forming biological organism

Cell wall formation

All of the above

None

The type of cell division that is essential for reproduction is _______.

None of these

Both A and B

Mitosis

Meiosis

None

Which of the following is not true about meiosis?

4 daughter cells are formed

It results in gamete formation

None of these

The daughter cells have twice the number of chromosomes as the mother cell

None

Name two organelles having their own genetic component.

Golgi apparatus and cell wall

Mitochondria and cell wall

Chloroplast and leucoplast

Chloroplast and mitochondria

None

10.

The fact that nucleus possessed the ability to control phenotype was first determined by

Experiments with bacteria that identified DNA polymerase

Grafting experiments with Acetabularia

Experiments with radiolabelled phages

Transformation experiments with Streptococcus pneumoniae

None

11.

How do substances like carbon dioxide (CO2 ) and water (H2O) move in and out of the cell?

Osmosis

Active transport

Diffusion and osmosis

Facilitated diffusion and diffusion

None

12.

Name one organelle present in a plant, that can make some of its proteins.

Mitochondria

Golgi apparatus

Lysosome

None of the above

None

13.

Movement of ions or molecules against electrochemical gradient is called

Diffusion

Brownican movement

Pinocytosis

Active transport

None

14.

Identifying feature(s) of onion cell under microscope are___________.

All of the above

Peripheral nucleus

Large vacuole

Cell wall

None

15.

Geeta was asked to prepare a temporary mount of onion peel and list the steps. While writing, she wrote the following steps, which may not be in proper sequence. The correct sequence would be

(i) Add a few drops of safranin to the watch glass

(ii) Cover it with a coverslip

(iii) Add a drop of Glycerine

(iv) Take out onion peel

(v) Place the peel in water in a watch glass

(vi) Wash the peel with water and transfer to a clean slide

(vii) Remove the extra water from the slide with blotting paper

(viii) Examine the slide under a microscope

iv, v, iii, ii, i, vii, vi, viii

i, ii, iii, iv, v, vii, vi, viii

iv, v, i, vi, vii, iii, ii, viii

v, iv, i, vii, vi, viii, iii, ii

None

16.

Match column I with column II and select the correct answer using the codes given below:

Column I	Column II
(A) Amoeba, Paramoecium, Chlamydomonas	(p) Lysosomes
(B) Protoplasm	(q) Unicellular organisms
(C) Suicide bags of a cell	(r) Purkinje in 1839
(D) Chromatin material and nucleolus	(s) Schleiden and Schwann
(E) Cell theory	(t) Nucleus

(A)→q,(B)→r,(C)→p,(D)→t,(E)→s

(A)→q,(B)→r,(C)→p,(D)→s,(E)→t

(A)→r,(B)→q,(C)→p,(D)→t,(E)→s

(A)→q,(B)→p,(C)→r,(D)→t,(E)→s

None

17.

Match the following correctly.

List I	List II
A) Rough endoplasmic reticulum	1) Amoeba
B) Lysosome	2) Nucleus
C) Nucleoid	3) Bacteria
D) Food vacuoles	4)Ribosomes
E) Chromatin material and nucleolus	5) Suicidal bag

A- 3, B- 2, C- 4, D- 5, E- 1

A- 1, B- 3, C- 5, D- 2, E- 4

A- 5, B- 4, C- 1, D- 2, E- 3

A- 4, B- 5, C- 3, D- 1, E- 2

None

18.

Water molecules move from their ______ concentration to their ______ concentration during osmosis.

Higher, lower

Isotonic, higher

Lower, higher

Higher, isotonic

None

19.

Which component of a plant cell gives it rigidity and shape?

All of the above

Cell wall

Nucleus

Cell membrane

None

20.

Which part of the cell helps the transfer of material from the nucleus to the cytoplasm?

Nuclear pores

DNA

Chromatin fibres

None of the above

None

Chapter 5- The Fundamental Unit of Life

Chapter 6 - Tissues

Chapter 12 – Improvement in Food Resources

Curriculum

Ncert - class -9 - Biology

Chapter 5- The Fundamental Unit of Life

Chapter 6 - Tissues

Chapter 12 – Improvement in Food Resources

PRACTICE TEST – 1 – CHAPTER 5 – CLASS 9