Everexams.com – Biology Chapter 3: Cells and Subcellular Organelles

Biology Chapter 3 Test

Chapter 3: Cells and Subcellular Organelles

Class: 1st Year | Subject: Biology (SNC)

Time Remaining: 60:00
Your ultimate resource for academic excellence and exam success!
Paper Type: Chapter Test
Time Allowed: 60 minutes
Total Marks: 50
Student Name: Click to enter your name
Roll Number: Click to enter roll #
Total Marks: 50 (MCQs: 10, Short Answers: 15×2=30, Detailed Answers: 2×5=10)

Everexams.com Test Instructions

1. Read each question carefully before answering.

2. For Multiple Choice Questions, click on your chosen option.

3. For Short Answer Questions, type your answer in the provided box.

4. Use the “Check Answers” button at the end of each section to see how you did.

5. Your score will be calculated automatically at the end.

High-Quality Notes
Comprehensive study materials
Past Papers
Extensive exam preparation
Solved Exercises
Step-by-step solutions
Q1. Choose the correct option. (10 Marks, 1 mark each)
1. Secondary cell wall is more rigid than primary cell wall due to ……
A
High protein content
B
Presence of lignin
C
Absence of cellulose
D
Increased water content
2. The primary function of cytoplasm in eukaryotic cell is ……
A
To store genetic
B
To regulate nuclear transport
C
To synthesize ribosomes
D
To provide space for organelle function and metabolic reactions
3. …… regulates …… molecular passage between nucleus and cytoplasm.
A
Nuclear lamina
B
Chromatin
C
Nuclear pores
D
Nucleolus
4. Highest number of ribosomes are present in:
A
Fat cells
B
Red blood cells
C
Skin cells
D
Pancreas cells
5. …… pigments are primarily responsible for light absorption in chloroplast.
A
Phycobilins
B
Anthocyanins
C
Chlorophyll
D
Carotenoids
6. In …… cell type centrioles are typically found.
A
Plant and fungal cells
B
Animal and most protist
C
Bacterial cells
D
All eukaryotic cells
7. The approximate size range of typical prokaryotic cell ……
A
10-100 μm
B
100-1000 μm
C
1-10 μm
D
100-1000 nm
8. What is the final outcome of a signal transduction pathway?
A
A cellular response
B
Destruction of the receptor
C
Production of more ligands
D
Formation of a new cell
9. …… of the following is a possible cellular response to signaling.
A
Loss of cellular organelles
B
Immediate cell death
C
Cell growth, division or apoptosis
D
Break down of the nucleus
10. Which molecules are typically transported via carrier proteins in facilitated diffusion?
A
Small nonpolar molecules
B
Polar charged molecules
C
Only lipids
D
DNA fragments
10 multiple choice questions
Q2. Write down short answers of following questions. (30 Marks, 15×2=30)
i State two features that mitochondria have in common with prokaryotes.
ii List the structures and molecules, which can cross the nuclear envelope.
iii Describe the role of the Golgi body in forming lysosomes.
iv What are some difference between cilia and flagella?
v What is the function of central vacuole in plant cell?
vi How do peroxisome protect cells from toxic substances?
vii What is the role of stroma in chloroplast?
viii What is the primary function of mitochondria in cells?
ix Where are ribosomes synthesized and assembled in eukaryotic cells?
x What are two main components of nucleolus?
xi How does chromatin structure differ between interphase and cell division?
xii Differentiate between euchromatin and heterochromatin.
xiii Name three membrane bound organelles found in eukaryotic cells.
xiv What type of molecule binds to receptor to initiate cell signaling?
xv What happens to an animal cell placed in a hypotonic solution?
15 short answer questions (2 marks each)
Q3. Write detailed answers of the following questions. (Answer any 2) (10 Marks, 2×5=10)
1. Explain the structure and functions of Golgi complex.
2. Discuss nuclear envelope and nuclear pore complex in detail.
3. Describe the structures of the three fibres that make the cytoskeleton.
3 detailed questions (answer any 2, 5 marks each)

Everexams.com Test Results

0/50
Correct Answer
Incorrect Answer
Your Selection