Question

TOPIC-PLANT TISSUES
I. MCQS
1. The cells of cork are dead and have a chemical in their walls that makes them impervious to gases and water. The chemical is
         (a)  lignin (b)  suberin (c)  cutin (d)  wax
2. The flexibility in plants is due to a tissue called
        (a)  chlorenchyma (b)  parenchyma (c)  sclerenchyma (d)  collenchyma
II. Fill in the blanks
1. _________ tissue is responsible for growth of plants.
2. Simple Permanent tissue is made up of ______kind of cells.
III. State True or False
1. Phloem transports water in plants.
2. Process of attaining a permanent shape, size and function is called differentiation.
IV. 3 Marks Questions
1. In a temporary mount of leaf epidermis, we observe small pores.
a) What are the pores present in leaf epidermis called?
b) How are these pores beneficial to plants?
2. Give reasons:
a) Branches of tree move and bend freely in high wind velocity
It is difficult to pull out the husk of a coconut tree.​

Answer 1

1.Answer:MCQ:-

a) suberin

b) collenchyma

2.Fill in the blanks:-

a) meristematic tissue

b) protective and supportive cells

3.State True or False:-

a) False

b)True

4.3 marked questions:-

a) Stomata

b) Role of Stomata:-

- Helps in photosynthesis to make energy for survival.

- Helps in exchange of gases.

- Helps in transpiration.

Give reasons :-

a) Branches of trees moves and bend freely in high wind velocity because of the presence of collenchyma which makes the plant flexible.

b) It is difficult to pull out the husk of coconut tree because of the presence of sclerenchyma tissue. Sclerenchyma tissue are closely packed without intercellular space,a middle lamelia exists between them.

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Explanation:

Answer 2

ʜᴇʀᴇ'ꜱ yᴏᴜʀ ᴀɴꜱᴡᴇʀ

ᴍᴜʟᴛɪᴩʟᴇ ᴄʜᴏɪᴄᴇ qᴜᴇꜱᴛɪᴏɴꜱ:

✎ ᴛʜᴇ ᴄᴇʟʟꜱ ᴏꜰ ᴄᴏʀᴋ ᴀʀᴇ ᴅᴇᴀᴅ ᴀɴᴅ ʜᴀᴠᴇ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ɪɴ ᴛʜᴇɪʀ ᴡᴀʟʟꜱ ᴛʜᴀᴛ ᴍᴀᴋᴇꜱ ᴛʜᴇᴍ ɪᴍᴩᴇʀᴠɪᴏᴜꜱ ᴛᴏ ɢᴀꜱᴇꜱ ᴀɴᴅ ᴡᴀᴛᴇʀ. ᴛʜᴇ ᴄʜᴇᴍɪᴄᴀʟ ɪꜱ

✎ ʟɪɢɴɪɴ

✎ ꜱᴜʙᴇʀɪɴ

✎ ᴄᴜᴛɪɴ

✎ ᴡᴀx

✎ ᴛʜᴇ ꜰʟᴇxɪʙɪʟɪᴛy ɪɴ ᴩʟᴀɴᴛꜱ ɪꜱ ᴅᴜᴇ ᴛᴏ ᴀ ᴛɪꜱꜱᴜᴇ ᴄᴀʟʟᴇᴅ

✎ ᴄʜʟᴏʀᴇɴᴄʜyᴍᴀ

✎ ᴩᴀʀᴇɴᴄʜyᴍᴀ

✎ ꜱᴄʟᴇʀᴇɴᴄʜyᴍᴀ

✎ ᴄᴏʟʟᴇɴᴄʜyᴍᴀ

ꜰɪʟʟ ɪɴ ᴛʜᴇ ʙʟᴀɴᴋꜱ:

✎ ᴍᴇʀɪꜱᴛᴇᴍᴀᴛɪᴄ ᴛɪꜱꜱᴜᴇ ɪꜱ ʀᴇꜱᴩᴏɴꜱɪʙʟᴇ ꜰᴏʀ ɢʀᴏᴡᴛʜ ᴏꜰ ᴩʟᴀɴᴛꜱ

✎ ꜱɪᴍᴩʟᴇ ᴩᴇʀᴍᴀɴᴇɴᴛ ᴛɪꜱꜱᴜᴇ ɪꜱ ᴍᴀᴅᴇ ᴜᴩ ᴏꜰ ᴍᴇʀɪꜱᴛᴇᴍᴀᴛɪᴄ ᴋɪɴᴅ ᴏꜰ ᴄᴇʟʟꜱ

ꜱᴛᴀᴛᴇ ᴛʀᴜᴇ ᴏʀ ꜰᴀʟꜱᴇ:

✎ ᴩʜʟᴏᴇᴍ ᴛʀᴀɴꜱᴩᴏʀᴛꜱ ᴡᴀᴛᴇʀ ɪɴ ᴩʟᴀɴᴛꜱ

ꜰᴀʟꜱᴇ

✎ ᴩʀᴏᴄᴇꜱꜱ ᴏꜰ ᴀᴛᴛᴀɪɴɪɴɢ ᴀ ᴩᴇʀᴍᴀɴᴇɴᴛ ꜱʜᴀᴩᴇ, ꜱɪᴢᴇ ᴀɴᴅ ꜰᴜɴᴄᴛɪᴏɴ ɪꜱ ᴄᴀʟʟᴇᴅ ᴅɪꜰꜰᴇʀᴇɴᴛɪᴀᴛɪᴏɴ

✎ ᴛʀᴜᴇ

ꜱʜᴏʀᴛ ᴀɴꜱᴡᴇʀ qᴜᴇꜱᴛɪᴏɴ:

✎ ᴛʜᴇ ᴩᴏʀᴇꜱ ᴩʀᴇꜱᴇɴᴛ ɪɴ ʟᴇᴀꜰ ᴇᴩɪᴅᴇʀᴍɪꜱ ᴀʀᴇ ᴄᴀʟʟᴇᴅ ᴛʜᴇ ꜱᴛᴏᴍᴀᴛᴀ

✎ ɪᴛ ɪꜱ ʙᴇɴᴇꜰɪᴄɪᴀʟ ʙᴇᴄᴀᴜꜱᴇ ꜱᴛᴏᴍᴀᴛᴀ ʜᴇʟᴩꜱ ɪɴ ᴛʜᴇ ᴇxᴄʜᴀɴɢᴇ ᴏꜰ ɢᴀꜱᴇꜱ ᴀɴᴅ ɪɴ ᴛʜᴇ ᴩʀᴏᴄᴇꜱꜱ ᴏꜰ ᴛʀᴀɴꜱᴩɪʀᴀᴛɪᴏɴ

ɢɪᴠᴇ ʀᴇᴀꜱᴏɴꜱ:

✎ ʙʀᴀɴᴄʜᴇꜱ ᴏꜰ ᴛʀᴇᴇ ᴍᴏᴠᴇ ᴀɴᴅ ʙᴇɴᴅ ꜰʀᴇᴇʟy ɪɴ ʜɪɢʜ ᴡɪɴᴅ ᴠᴇʟᴏᴄɪᴛy

ᴄᴏʟʟᴇɴᴄʜyᴍᴀ ᴄᴇʟʟꜱ ᴀʀᴇ ᴄʜᴀʀᴀᴄᴛᴇʀɪᴢᴇᴅ ʙy ᴛʜᴇ ᴅᴇᴩᴏꜱɪᴛɪᴏɴ ᴏꜰ ᴇxᴛʀᴀ ᴄᴇʟʟᴜʟᴏꜱᴇ ᴀᴛ ᴄᴏʀɴᴇʀꜱ ᴏꜰ ᴛʜᴇ ᴄᴇʟʟ. ɪɴ ᴄᴏʟʟᴇɴᴄʜyᴍᴀ ɪɴᴛᴇʀᴄᴇʟʟᴜʟᴀʀ ꜱᴩᴀᴄᴇꜱ ᴀʀᴇ ᴀʙꜱᴇɴᴛ ᴀɴᴅ ᴄᴇʟʟꜱ ᴀʀᴇ ᴇʟᴏɴɢᴀᴛᴇᴅ. ɪᴛ ɪꜱ ᴀ ᴍᴇᴄʜᴀɴɪᴄᴀʟ ᴛɪꜱꜱᴜᴇ ᴡʜɪᴄʜ ᴩʀᴏᴠɪᴅᴇꜱ ꜱᴜᴩᴩᴏʀᴛ ᴀɴᴅ ᴇʟᴀꜱᴛɪᴄɪᴛy ᴛᴏ ᴛʜᴇ ʙʀᴀɴᴄʜᴇꜱ ᴏꜰ ᴀ ᴛʀᴇᴇ ꜱᴏ ᴛʜᴀᴛ, ᴛʜᴇy ᴍᴏᴠᴇ ᴀɴᴅ ʙᴇɴᴅ ꜰʀᴇᴇʟy ɪɴ ʜɪɢʜ ᴡɪɴᴅ ᴠᴇʟᴏᴄɪᴛy

✎ ɪᴛ ɪꜱ ᴅɪꜰꜰɪᴄᴜʟᴛ ᴛᴏ ᴩᴜʟʟ ᴏᴜᴛ ᴛʜᴇ ʜᴜꜱᴋ ᴏꜰ ᴀ ᴄᴏᴄᴏɴᴜᴛ ᴛʀᴇᴇ

ɪᴛ ɪꜱ ᴅɪꜰꜰɪᴄᴜʟᴛ ᴛᴏ ᴩᴜʟʟ ᴏᴜᴛ ᴛʜᴇ ʜᴜꜱᴋ ᴏꜰ ᴀ ᴄᴏᴄᴏɴᴜᴛ ᴛʀᴇᴇ ᴅᴜᴇ ᴛᴏ ᴛʜᴇ ᴩʀᴇꜱᴇɴᴄᴇ ᴏꜰ ꜱᴄʟᴇʀᴇɴᴄʜyᴍᴀ ᴛɪꜱꜱᴜᴇ. ᴛʜᴇ ᴄᴇʟʟꜱ ᴏꜰ ꜱᴄʟᴇʀᴇɴᴄʜyᴍᴀ ᴛɪꜱꜱᴜᴇ ᴀʀᴇ ᴄʟᴏꜱᴇʟy ᴩᴀᴄᴋᴇᴅ ᴡɪᴛʜᴏᴜᴛ ɪɴᴛᴇʀᴄᴇʟʟᴜʟᴀʀ ꜱᴩᴀᴄᴇꜱ, ᴀ ᴍɪᴅᴅʟᴇ ʟᴀᴍᴇʟʟᴀ ᴇxɪꜱᴛꜱ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇᴍ. ᴍɪᴅᴅʟᴇ ʟᴀᴍᴇʟʟᴀ ɪꜱ ᴀ ᴛʜɪɴ ʟᴀyᴇʀ ᴏꜰ ᴄᴏɴɴᴇᴄᴛɪɴɢ ꜱᴜʙꜱᴛᴀɴᴄᴇ ᴄᴏɴᴛᴀɪɴɪɴɢ ᴩᴇᴄᴛɪɴ, ʟɪɢɴɪɴ ᴀɴᴅ ᴩʀᴏᴛᴇɪɴ

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