Question

*```Holidays hw science*( SUMMER VACATIONS)

*PROJECT*:


Q1. Write the contribution of the following scientist in the study of the cell:

Ø Robert hooke

Ø Purkinje

Ø Leeuwenhoek

Ø Robert brown

Ø Schleiden and schwann

Q2. Written assignment:-


* 10 very short question answers (1 mark each)

* 10 short question answers (2 mark each)



Q3. Prepare 20 MCQs from the chapter “Matter in our surrounding”.


Q4. Ice, water and steam are three states of a substance and not different

substances. Justify?


Q5. What are the main functions of each of the following components?
a) Plasma membrane

b) Mitochondria

c) Nucleus

d) Ribosomes


Q6. What are the different types of endoplasmic reticulum? Write the function

of each.


Q7. Name

a) An organelle which has its own genetic material

b) An organelle rich in digestive enzymes.

c) Nucleic acid present in nucleus.


Q8. Which kind of plastid is more common in

a) Roots of the plant

b) Leaves of the plant

c) Flowers and fruits


Q9. Illustrate a plant cell as seen under electron microscope. How is it different

from animal cell?​

Answer 1

Answer:

Robert hooke q6.b.q7.b.