Question

How does phototropism occur in plants

Answer 1

Explanation:

The directional movement of a plant in response to light is called phototropism. ... (ii) When sunlight fells on only one side of the plant, the auxin diffuses towards the shady side of shoot. The concentration of auxin stimulates the cells to grow longer. Therefore, the stem appears to bend towards the source of light.

Answer 2

ʜᴇʀᴇ ɪs ᴜʀ ᴀɴsᴡᴇʀ:-⏬⏬

ᴘʀᴏᴛᴏᴛʀᴏᴘɪsᴍ ɪs ʙᴀsɪᴄᴀʟʟʏ ᴛʜᴇ ɢʀᴏᴡᴛʜ ᴏғ ᴘʟᴀɴᴛs ʙᴏᴅʏ ɪɴ ᴘʟᴀɴᴛs . ɪᴛ ɪs ᴅɪᴠɪᴅᴇᴅ ɪɴᴛᴏ ᴛᴡᴏ sᴇᴄᴛᴏʀs . ᴏɴᴇ ɪs ᴘᴏsɪᴛɪᴠᴇ ᴘʀᴏᴛᴏᴛʀᴏᴘɪsᴍ ᴀɴᴅ ᴏᴛʜᴇʀ ᴏɴᴇ ɪs ɴᴇɢᴀᴛɪᴠᴇ ᴘʀᴏᴛᴏᴛʀᴏᴘɪsᴍ .

ɪɴ ᴛʜɪs ᴘʀᴏᴄᴇss ᴛʜᴇ ɢʀᴏᴡᴛʜ ᴏғ ᴛʜᴇ ᴘʟᴀɴᴛs ʙᴏᴜɴᴅ ᴛᴏᴡᴀʀs ᴛʜᴇ sᴜɴʟɪɢʜᴛ ᴀɴᴅ ᴛʜᴇ ʙᴏᴅʏ ᴏғ ᴛʜᴇ ᴘʟᴀɴᴛs ᴡɪʟʟ ɢʀᴏᴡ ɪɴ ᴛʜɪs ᴘʀᴏᴄᴇss . ʙᴜᴛ ᴡʜᴇɴ ᴛʜᴇ ʙᴏᴅʏ ᴏғ ᴛʜᴇ ᴘʟᴀɴᴛs ɢʀᴏᴡs ᴏᴘᴘᴏsɪᴛᴇ ᴏғ ᴛʜᴇ sᴜɴʟɪɢʜᴛ ᴛʜᴇɴ ɪᴛ ᴄᴀʟʟs ɴᴇɢᴀᴛɪᴠᴇ ᴘʀᴏᴛᴏᴛʀᴏᴘɪsᴍ .