Question

the cell is an open dynamic system? explain

Answer 1

Cell allows exchange including entry and exit of matter & energy from its surroundings.It takes up water,oxygen,food,salts for growth and division and energy to carry out its metabolic processes.It also releases its waste matter & secretions to outside along with heat(energy).The exchange of matter or substances between the cell and its environment is dynamic as it varies in direction and rate as per the requirements of the cell.Thus,a cell attains a stead -state wherein the internal conditions of the cell remain constant.Hence, cell is considered to be a open dynamic system.
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Answer 2

ᴛʜᴇ ᴇϰᴄʜᴀɴɢᴇ ᴏғ ᴍᴀᴛᴛᴇʀ ᴏʀ ѕᴜʙѕᴛᴀɴᴄᴇѕ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ᴄᴇʟʟ ᴀɴᴅ ɪᴛѕ ᴇɴᴠɪʀᴏɴᴍᴇɴᴛ ɪѕ ᴅʏɴᴀᴍɪᴄ ᴀѕ ɪᴛ ᴠᴀʀɪᴇѕ ɪɴ ᴅɪʀᴇᴄᴛɪᴏɴ ᴀɴᴅ ʀᴀᴛᴇ ᴀѕ ᴘᴇʀ ᴛʜᴇ ʀᴇϙᴜɪʀᴇᴍᴇɴᴛѕ ᴏғ ᴛʜᴇ ᴄᴇʟʟ. ᴛʜᴜѕ,ᴀ ᴄᴇʟʟ ᴀᴛᴛᴀɪɴѕ ᴀ ѕᴛᴇᴀᴅ -ѕᴛᴀᴛᴇ ᴡʜᴇʀᴇɪɴ ᴛʜᴇ ɪɴᴛᴇʀɴᴀʟ ᴄᴏɴᴅɪᴛɪᴏɴѕ ᴏғ ᴛʜᴇ ᴄᴇʟʟ ʀᴇᴍᴀɪɴ ᴄᴏɴѕᴛᴀɴᴛ. ʜᴇɴᴄᴇ, ᴄᴇʟʟ ɪѕ ᴄᴏɴѕɪᴅᴇʀᴇᴅ ᴛᴏ ʙᴇ ᴀ ᴏᴘᴇɴ ᴅʏɴᴀᴍɪᴄ ѕʏѕᴛᴇᴍ.

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