Q1 Write the main function of leucoplast.
Q2 What is the function of SER in liver cells of vertebrates?
Q3 Why the RER appears rough?
Q4 Why viruses are not supposed to be living?
Q5 What is a nucleoid?
Q6 Why dry raisins placed in water swell up?
Q7 In which part of a plant chromoplasts are found?
Q8 Where are genes located?
Q9 What will happen if we keep a plant cell or animal cell in a i) Hypotonic solution ii)
Hypertonic solution iii) Isotonic solution.
Q10 Explain the importance of osmosis for living beings?
Q11 Give the historical development of cell theory.
Q12 Who coined the term “cell “ and how?
Q13 Write the contribution of (a) Robert Hooke, (b) Leeuwenhoek (c) Robert Brown
Q14 Draw a large diagram of an animal cell as seen through aan electron microscope. Label
the parts that carry on the function of Respiration, secretion, protein synthesis, transport of material.
Q15 Which substance is responsible for transfer of characters from one generation to another?
Q1 Which cells can contract and relax?
Q2 Name the substance that makes cork compact.
Q3 What are root hair?
Q4 What is transpiration?
Q5 What is aerenchyma?
Q6 Name the parenchyma tissue which has chlorophyll.
Q7 Where is meristemetic tissue found in plants?
Q8 What is the difference between bone and cartilage?
Q9 Where are tendons and ligaments found?
Q10 Describe the functions of xylem. Write the function of each component.
Q11 What are complex tissues? Write their different kinds.
Q12 What are cork cells?
Q13 What are stomata? Write about their structure and function?
Q14 What are protective tissues?
Q15 Write the characteristics and functions of collenchyma.
Q16 On the basis of structural and functional difference, write the characteristics of plant and animal tissues.
Q1. What are milch animals?
Q2. Name two cattle breeds which shows excellent resistance of diseases.