plz answer these questions
Answers
Answer:
(A)Most biological membranes are more permeable to water than to ions or other solutes, and water moves across them by osmosis from a solution of lower solute concentration to one of higher solute concentration. Animalcells swell or shrink when placed inhypotonic or hypertonic solutions, respectively.
(B)A phenomenon called endosmosis takes place when raisins are placed inwater for few hours. When raisins are soaked in water, they swell. All this is due to the process of osmosis. Thewater molecules pass the cell membrane of the raisins and theraisins thus get swollen.
(C)In general, mitosis (division of thenucleus) is preceded by the S stage of interphase (during which the DNA is replicated) and is often accompanied or followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components.
(D)Each nucleosome is made of DNAwrapped around eight histone proteins that function like a spool and are called a histone octamer. ... Eachhistone octamer is composed of two copies each of the histone proteins H2A, H2B, H3, and H4.
(E)guttation
The loss of water in the form of droplets from themargins of leaves is called as guttation. There are hydathodes i.e., gland responsible for the loss of water in guttation.
Explanation:
Here is your answer in detail hooe it helped you....:)