Question

I. Answer the following questions:


1) Which are the 4 parts of nucleus?


2) How many chromosomes are there in man?

3) What is the full form of ATP?


4) What are prokaryotic and eukaryotic cells? Give examples for each.

5) Which is the protein factory of the cell?


6) Which are the 3 types of plastids?


7) Write a note on endoplasmic reticulum. ​

Answer 1

Answer:

1)The nucleus consists of the following main parts: (1) Nucleolemma or nuclear membrane (karyotheca) (2) Nuclear sap or karyolymph or nucleoplasm (3) Chromatin network or fibres (4) Nucleolus (5) Endosomes.

2)Humans have 23 pairs of chromosomes, for a total of 46 chromosomes.

3)The full from of ATP is adenosine triphosphate

4)Prokaryotic cells lack internal cellular bodies (organelles), while eukaryotic cells possess them. Examples of prokaryotes are bacteria and archaea. Examples of eukaryotes are protists, fungi, plants, and animals (everything except prokaryotes).

5)The ribosome, the protein factory in every living cell.

6) The three types of plastids are Chromoplasts,

Gerontoplasts,Leucoplasts.

7)endoplasmic rreticulum;

Endoplasmic reticulum (ER) is a cellular organelle. It is the transport network for molecules going to specific places, as compared to molecules that float freely in the cytoplasm. The endoplasmic reticulum is in cells that have a nucleus: in eukaryote cells but not in prokaryote cells.

Explanation:

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