Question

Q1 Centrosome duplication takes place in which phase:
(a) S phase
(b) G0 phase
(c) G1 phase
(d) G2 phase
(e) M phase


Q2 Mesophyll cell
(a) principal centre of respiration.
(b) principal centre of photosynthesis.
(c) principal centre transportation.
(d) it does not take part in any of the process.

Chemistry question:-


Q3 in electroplating the anode is made of strip of metal:
(a) which is to be electroplated.
(b) electrolyte
(c)the metal to be electroplated on the article.
(d) both a and b
(e) none of these




Tell the correct answer ​

Answer 1

Answer:

1)a

2)a

3)d

Explanation:

Hope this helpful

Answer 2

Q1 - a

Q2 - b

Q3 - e

Explanation:

• centrosome is major microtubule organizing center comprised of two centriole . centriole duplication ensure that each daughter cell inherits two centrioles. centrosome or centriole duplication takes place in S phase so option a is correct
• mesophyll cell contain large number of chloroplast so they are the main site of photosynthesis so option b is correct
• In electroplating ,part to be coated act as a cathode and electrolyte is a solution of a salt of the metal to be coated. anode is a metal strip.
• Metal dissolved from anode plated onto the cathode, so option e is correct