SELF ASSESSMENT MODEL PAPER – 2 (2025-26)
Class: 9 Subject: Biological
Science
Total Marks: 35 Time: 1 hr 15
min
SECTION – A
Multiple Choice Questions
Each question has four options. Only ONE option is correct.
15 × 1 = 15
- Which
of the following explains the difference in growth between plants and
animals?
A) Plant tissues consume more energy for growth than animal
tissues.
B) Plants move in search of food, while animals remain fixed at one place.
C) Plant tissues have more living cells, while animal tissues mostly have dead
cells.
D) Plant tissues grow only from specific regions, while animal growth occurs
more uniformly.
Answer: D
- Prakruthi
lost the cap of her glass water bottle. She wants to create a new cap for
it by herself. Which plant part would be most suitable for this purpose?
Why?
A) Leaf lamina – because it is broad and flexible.
B) Soft stem pith – because it is spongy and light.
C) Fruit peel – because it looks tough and protective.
D) Cork – because its cells are dead and their walls are filled with suberin.
Answer: D
- Which
tissue in plants makes up the husk of coconut?
A) Collenchyma
B) Sclerenchyma
C) Parenchyma
D) Xylem
Answer: B
- Identify
the tissue given in the picture.
A) Parenchyma
B) Collenchyma
C) Sclerenchyma
D) Tracheid
Answer: A
- Which
of the following features makes a cork tissue?
A) Cells are dead and compactly arranged.
B) Cells are thin-walled with large vacuoles.
C) Cells are loosely packed with intercellular spaces.
D) Cells are green and contain chlorophyll.
Answer: A
- A
student has classified the cells into two different groups as shown below.
Group A:
• Xylem parenchyma
• Sieve cells
• Sieve tubes
Group B:
• Phloem fibres
• Tracheids
• Vessels
What might be Group A and Group B respectively?
A) Simple, complex
B) Cells in Xylem, cells in Phloem
C) Living, non-living
D) Meristematic, permanent
Answer: C
- Choose
the correct answer based on the given assertion and reason.
Assertion (A): Differentiation leads to development of
various types of permanent tissues.
Reason (R): It is the process by which cells develop permanent shape, size and
function.
A) A is true but R is false.
B) A is false but R is true.
C) Both A and R are true. R is the correct explanation of A.
D) Both A and R are true. R is not the correct explanation of A.
Answer: C
- While
analyzing the permanent slides under the microscope, Raja found cells with
nucleus, elongated and irregularly thickened corners. What is the most
likely type of tissue?
A) Parenchyma
B) Sclerenchyma
C) Phloem
D) Collenchyma
Answer: D
- Four
students made the following statements regarding the tissues in plants:
Vani – It is the tissue which makes the plant hard and
stiff.
Rani – It has large air cavities and helps the plant to float.
Ramesh – It provides flexibility and helps in bending.
Suresh – It contains chlorophyll and performs photosynthesis.
Identify the students who were speaking about parenchyma.
A) Vani, Ramesh
B) Rani, Ramesh
C) Ramesh, Suresh
D) Suresh, Rani
Answer: D
- Which
of the following cannot be found in sclerenchyma?
P – Cytoplasm
Q – Plastids
R – Cell wall
A) Only P
B) Only Q
C) Only P and Q
D) Only P and R
Answer: C
- Which
of the following is TRUE about the epidermis of desert plants?
A) Stomata are completely functional and peripheral.
B) Cuticle is absent or thin.
C) Hair on the surface of leaf.
D) Thick waxy coating on the surface.
Answer: D
- Which
of the following is NOT true about the meristems?
A) They increase the girth of the stem.
B) They increase the height.
C) They increase the length of the roots.
D) They transport food material.
Answer: D
- Which
of the following meristematic tissue increases the girth of the stem?
A) Cambium
B) Apical meristem
C) Stomata
D) Intercalary meristem
Answer: A
- Suman
wants to grow a plant as a bonsai (short) plant. What should he do?
A) Keep it in a small pot and cut all the leaves regularly.
B) Keep it in a small pot and give very little water and fertilizer.
C) Bonsai plants are a special type of plant, so nothing needs to be done.
D) Keep it in a small pot and trim the tips of its branches and roots
regularly.
Answer: D
- Here
is the phloem tissue and some details about them.
P – It is made up of five types of cells.
Q – It is a part of vascular bundle.
R – It is a permanent tissue.
S – It transports food.
Which of the characteristic mentioned above makes it complex
tissue?
A) P
B) Q
C) R
D) S
Answer: A
SECTION – B
2 × 2 = 4
- Name
the following:
i) Meristem located near the node.
Answer: Intercalary meristem
ii) Tissue that allows bending of tendrils without breaking
Answer: Collenchyma
- Why
do the cells of meristematic tissue lack vacuoles?
Answer:
• Meristematic cells are actively dividing cells.
• Vacuoles store food and waste materials, which are not required during rapid
cell division.
• Absence of vacuoles helps in faster cell division.
SECTION – C
2 × 4 = 8
- Mention
the different components of xylem and state one function of each.
Components of Xylem and Functions:
- Tracheids
– Conduct water and minerals.
- Vessels
– Transport water efficiently.
- Xylem
parenchyma – Store food.
- Xylem
fibres – Provide mechanical support.
- Draw
a neat labelled diagram showing the lateral view and surface view of guard
cells and epidermal cells.
SECTION – D
1 × 8 = 8
- A)
Write the laboratory activity to observe the epidermal tissue of a leaf.
Aim:
To observe epidermal tissue of a leaf under microscope.
Materials required:
• Fresh leaf
• Forceps
• Slide and cover slip
• Water
• Safranin / Methylene blue
• Microscope
Procedure:
- Take
a fresh leaf and peel off the lower epidermis using forceps.
- Place
the peel in water to prevent drying.
- Transfer
it onto a clean glass slide.
- Add
a drop of safranin stain.
- Place
a cover slip carefully without air bubbles.
- Observe
under low power and then high power of microscope.
Observation:
• Rectangular epidermal cells are seen.
• Stomata with guard cells are visible.
Result:
Epidermal tissue contains closely packed cells and stomata for gas exchange.
OR
- B)
Compare collenchyma and sclerenchyma.
|
Feature |
Collenchyma |
Sclerenchyma |
|
Living /
Non-living |
Living cells |
Dead cells |
|
Cell shape |
Elongated
with uneven thickening |
Long, narrow,
thick-walled |
|
Cell wall |
Unevenly
thickened at corners |
Very thick,
lignified walls |
|
Intercellular
spaces |
Very little
or absent |
Absent |