Total Marks: 50 (MCQs: 10, Short Answers: 15×2=30, Detailed Answers: 2×5=10)
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Q1. Choose the correct option. (10 Marks, 1 mark each)
1. Secondary cell wall is more rigid than primary cell wall due to ……
2. The primary function of cytoplasm in eukaryotic cell is ……
3. …… regulates …… molecular passage between nucleus and cytoplasm.
4. Highest number of ribosomes are present in:
5. …… pigments are primarily responsible for light absorption in chloroplast.
6. In …… cell type centrioles are typically found.
7. The approximate size range of typical prokaryotic cell ……
8. What is the final outcome of a signal transduction pathway?
9. …… of the following is a possible cellular response to signaling.
10. Which molecules are typically transported via carrier proteins in facilitated diffusion?
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)
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