Question

16. Where are chromosomes located? What are they composed of? What is chromatin material
and how does it change just before the cell divides?

Long Answer Type Questions

17. Give reasons.
(a) Jams and pickles do not spoil easily.
(b) Dried raisins when kept in pure water swell up after some time.
18. (a) State three differences between plasma membrane and cell wall.
(b) Draw a well-labeled diagram of a plant cell and an animal cell and state the major structural difference between them.​

Answer 1

Answer:

16) Chromosomes are located inside the nucleus of plants and animals cells. Chromosomes are composed of single DNA(Deoxyribo Nucleic Acid) molecule and proteins. Chromatin material is thread like strucure that condenses to form x shaped chromosomes during cell division.

Explanation:

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