Question

) Lysosome is a cytoplasmic organelle containing enzymes that break down biological polymers. Lysosomes functon as the digestie system of the cell. It is also called the suicide bag of the cell because
(a) It causes any cell to commit suicide (b) Its enzymes digest the cell itself
(c) Its enzymes kill surrounding cells (d) All of the aboie
2) Meristemetc tssues are those which help in increasing the length and girth of the plant. Which of the following statements giien below is correct about the meristematc tssplan
(a) It is made up of cells that are incapable of cell diiision (b) It is made up of cells that are capable of cell diiision (c) It is composed of single type of cells
(d) It is composed of more than one type of cells
3) A cell will swell up if
(a) the concentraton of water molecules in the cell is higher than the concentraton of water molecules in the surrounding medium.
(b) the concentraton of water molecules in the surrounding medium is higher than water molecules concentraton in the cell.
(c) the concentraton of water molecules is same in the cell and in the surrounding medium.
(d) concentraton of water molecules does not mater.
4) Which of these is not related to endoplasmic retculum?
(a) It behaies as a transport channel for proteins between nucleus and cytoplasm. (b) It transports materials between iarious regions in the cytoplasm.
(c) It can be the site of energy generaton.
(d) It can be the site for some biochemical actiites of the cell.
5) You must haie obseried that a fruit when unripe is green but it becomes beautfully coloured when ripe. According to you what is the reason behind this colour change.
(a) Chloroplasts change to chrchloroplast (b) Chromosplasts change to chromosomes (c) Chloroplasts change to chromosomes (d) Chromosplasts change to chloroplasts 6) Xylem and phloem are examples of tssue
(a) epidermal tssue (b) simple tssue
(c) protectie tssue (d) complex tssue
7) The cells of cork are dead and haie a chemical in their walls that makes them imperiious to gases and water. The chemical is

(a) lignin (b) suberin (c) cutn
(d) wax
8) When an object undergoes acceleraton
a) thereisalwaysanincreaseinitsielocity b) There is change in ielocity
c) thereisalwaysdecreaseinielocity
d) a body is moiing with uniform ielocity
9) A train moiing with uniform speed of 54km/h, its speed in m/s is
a) 15 b) 1.5 c) 9 d) 90
10) A car is traielling at a speed of 90 km/h. Brakes are applied so as to produce a uniform acceleraton of – 0.5 m/s2. Find how far the car will go before it is brought to rest?
a) 8100m b) 900m c) 625m d) 620m
11) What types of forces are actng on the shown wall?
a) Balanced force
b) Unbalanced force
c) Cannotbedetermined

12) Super girl fies at a great speed afer receiiing a signal from a place where robbery is taking place. She stops right away upon reaching. How will her hair look like just afer she stops suddenly?
a) A
b) B
c) C
d) Cannot be determined
13) Choose the correct statement: I: Inerta is a type of force that depends upon the mass of the traielling
object II: Inerta is a type of force that depends upon the ielocity of the traielling object
a) OnlyI
b) Only II
c) BothIandII
d) Neither of these
14) The equaton i=u+ at giies informaton as
a) ielocityisafunctonoftme
b) ielocity is a functon of positon
c) Positonisafunctonoftme
d) Positon is a functon of ielocitOscillaton
15)When the liquid is spun rapidly, the denser partcles are forced to the botom and the lighter partcles stay at the top. This principle is used in:
(a) Centrifugaton
(b) Fractonal distllaton
(c) Eiaporaton (d) Tunneling

Answer 1

Answer:

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. ... Cells have many parts, each with a different function.

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Answer 2

Answer:

Hope it help you.

Explanation:

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