CBSE Class 9 Science Worksheet
Unit 2-Organisation in the Living World - The Fundamental Unit of Life
1.
Choose the correct answer: What is the site of ribosome formation in living cells?
A)
Endoplasmic reticulum
B)
Chloroplast
C)
Golgi Complex
D)
Nucleolus
2.
Choose the correct answer: Wall of cell that surrounds cytoplasm is known as _______________________.
A)
cell membrane
B)
Endoplasmic reticulum
C)
Chloroplast
D)
None of these
3.
Fill in the blanks: The cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell is __________.
4.
State True or False: Nucleoid is present inside the nucleoplasm of the eukaryotic nucleus.
A)
TRUE
B)
FALSE
5.
State True or False: Nucleus, mitochondria and plastid have DNA; hence they are able to make their own structural proteins.
A)
TRUE
B)
FALSE
6.
Fill in the blanks: In amoeba, the food items are stored in ______________.
7.
Which of the following helps in detoxifying many poisons and drugs?
A)
Smooth Endoplasmic reticulum
B)
Rough Endoplasmic reticulum
C)
Mitochondria
D)
Golgi Complex
8.
Choose the correct answer: Energy currency of the cell is ______________________.
A)
ADP
B)
ATP
C)
Proteins
D)
Glucose
9.
Give one example of osmosis.
10.
Choose the correct answer: Silver nitrate is used to study _________________.
A)
Endoplasmic reticulum
B)
Mitochondria
C)
Golgi Apparatus
D)
Ribosome
11.
Write three different types of plastids?
12.
State True or False: Fungus is a unicellular organism.
A)
TRUE
B)
FALSE
13.
Choose the correct answer: Who first discovered cells?
A)
Robert Brown
B)
Louie Pastur
C)
Robert Hooke
D)
Schleiden
14.
Choose the correct answer: Chromosomes are made up of ________________________.
A)
DNA
B)
proteins
C)
RNA
D)
Both 1 and 2
15.
Fill in the blanks: Two organelles in a plant cell which contain their own genetic materials and ribosomes are ___________ and __________.
16.
State True or False: Eukaryotic cells are larger in size than a prokaryotic cell.
A)
TRUE
B)
FALSE
17.
Choose the correct answer: Cytoplasm consists of small particles which perform different functions, these particles are known as ________________.
A)
cell wall
B)
cellulose
C)
organelles
D)
None of these
18.
Which of the following organelle contains DNA?
A)
Endoplasmic reticulum
B)
Golgi Complex
C)
Lysosomes
D)
Mitochondria
19.
Choose the correct answer: If the medium has exactly the same water concentration as the cell, there will be no net movement of water across the cell membrane. Such a solution is called ___________________.
A)
Hyotonic solution
B)
Hyertonic solution
C)
Isotonic solution
D)
None of these
20.
Choose the correct answer: The plastid which is more is more common in leaves of the plant is ___________.
A)
Chloroplast
B)
Chromoplast
C)
Leucoplast
D)
None of these
CBSE Class 9 Science Worksheet
Unit 2-Organisation in the Living World - The Fundamental Unit of Life
Answers
1.
Option D
2.
Option A
3.
Smooth endoplasmic reticulum
4.
Option B
5.
Option A
6.
food vacuole
7.
Option A
8.
Option B
9.
Absorption of water by plant roots.
10.
Option C
11.
Chloroplast, Chromoplast, Leucoplast
12.
Option B
13.
Option C
14.
Option D
15.
Mitochondria and plastid
16.
Option A
17.
Option C
18.
Option D
19.
Option C
20.
Option A
