Question

4.
xii) The embryo of grass seed is enclosed by a sheath consisting of
coleorhiza which covers the
a) Hycotyle
b) Epicotyle
c) Root
d) Shoot​

Answer 1

ʜᴇʏᴀ❣

ᴀ ᴘʀᴏᴛᴇᴄᴛɪᴠᴇ ʀᴏᴏᴛ ꜱʜᴇᴀᴛʜ ᴏꜰ ɢʀᴀꜱꜱ ꜱᴇᴇᴅʟɪɴɢꜱ ᴛʜʀᴏᴜɢʜ ᴡʜɪᴄʜ ᴛʜᴇ ᴘʀɪᴍᴀʀʏ ʀᴏᴏᴛ ᴇᴍᴇʀɢᴇꜱ. ᴀ ꜱʜᴇᴀᴛʜ-ʟɪᴋᴇ ꜱᴛʀᴜᴄᴛᴜʀᴇ ꜰᴏᴜɴᴅ ɪɴ ᴀ ᴘʟᴀɴᴛ ꜱᴇᴇᴅ ᴛʜᴀᴛ ᴄᴏɴɴᴇᴄᴛꜱ ᴛʜᴇ ᴄᴏʟᴇᴏᴘᴛɪʟᴇ ᴛᴏ ᴛʜᴇ ᴘʀɪᴍᴀʀʏ ʀᴏᴏᴛ ᴀɴᴅ ᴀᴄᴛꜱ ᴀꜱ ᴀ ᴘʀᴏᴛᴇᴄᴛɪᴠᴇ ᴄᴏᴠᴇʀɪɴɢ ᴇɴᴄʟᴏꜱɪɴɢ ᴛʜᴇ ᴘʟᴜᴍᴜʟᴇ ᴀɴᴅ ʀᴀᴅɪᴄʟᴇ.

ꜱᴏ ʏᴏᴜʀ ɪꜱ c)ʀᴏᴏᴛ

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘꜱ ᴜ ✌✌

Answer 2

Answer:

The embryo of grass seed is enclosed by a sheath consisting of coleorhiza which covers the c) Root.

Explanation:

• Coleorhiza also called the root sheath is the layer present in monocotyledon plant seeds to protect the root.  
• These structures are not seen in dicot plants.

• This layer provides protection to the developing root and root cap in the monocots.

• It grows initially during the process of seed germination by cell elongation, but later the root pierces out of this layer. It continues to remain around the root base in the form of a collar-like structure.