Question

4 .Complete the following questions ( work sheet based on The fundamental unit of life and Tissues )
Q1 The following questions consist of two statements Assertion(A) and Reason (R) Answer these questions selecting the appropriate option given below:
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are but R is not the correct explanation of A
(c) A is true but R is false
(d)A is false but R is true
a .Assertion (A)Lysosomes are akind of waste disposal system of the cell Reason (R) Lysosomes help to keep the cell clean by digesting any foreign materialas well as worn out cell organelles
b .Assertion( A) A living plant shows plasmolysis Reason(R) There is shrinkage or contraction of the content of cell away from cell wall when living cell loose water by Osmosis
Q2) Which of the following are covered by a single membrane ?
(a) Mitochondria
(b) Vacuole
(c)Lysosome
(d ) Plastid
Q3) Cell arises from pre –existing cell was stated by
a ) Haeckel
(b)Hooke
(c ) Purkinje
( e) Virchow
Q4) Which is not a function of epidermis
(a ) Protection from adverse condition
(b ) Gaseous exchange
(c) Conduction of water
(d ) Transpiration
Q5) Find out incorrect sentence
(a )Parenchymatous tissue have intercellular spaces
(b) Apical and intercalary meristem are permanent tissues .
(c ) Sclerenchymatous tissue are long and narrow with thickened walls
Q6) (a) Cork cells possess --- on their walls that makes them impervious to gases and water (b )--------------- have tubular cells with perforated walls and are living in nature (c ) Bone possess ---- a hard matrix composed of ------------- and --------
Q7) If you are provided with some vegetables to cook. You generally add salt into the vegetables during cooking process. After adding salt. vegetables release water What mechanism is responsible for this ?
Q8) Which kind of plastid is more common in
(a )Leaves of the plant
(b ) Flowers and fruits
Q9) Draw neat and labelled diagram of
(c) Animal cell
(b ) Parenchyma
(c ) Xylem parenchyma

Answer 1

Answer:1..

2 -vacuole

3-haeckel

4-transpiration

5-Schlerenchaematous tissue are long and narrow with thick walls

6-a.cambium b.parenchyma c.

Explanation:

Answer 2

Answer:

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