Science

Cell - Structure and Functions

Question:

State the difference between eukaryotes and prokaryotes.

Answer:

Prokaryotes:Most prokaryotes are unicellular. The nucleus is poorly defined due to the absence of a nuclear membrane. Nucleolus is absent Cell organelles such as plastids, mitochondria, golgi bodies, etc. are absent. Bacteria and blue-green algae are prokaryotic cells. Eukaryotes:Most eukaryotes are multicellular. The nucleus is well defined and is surrounded by a nuclear membrane. Nucleolus is present. Cell organelles such as plastids, mitochondria, golgi bodies, Etc. are present. Fungi, plant and animal cells are eukaryotic cells.
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Cell - Structure and Functions

Q 1.

Explain why chloroplasts are found only in plant cells?

Q 2.

Which part of the cell contains organelles?

Q 3.

State the difference between eukaryotes and prokaryotes.

Q 4.

Where are chromosomes found in a cell? State their function.

Q 5.

Make sketches of animal and plant cells. State three differences between them.

Q 6.

Make a sketch of the human nerve cell. What function do nerve cells perform?

Q 7.

Write short notes on the following.(a)Cytoplasm (b)Nucleus of a cell

Q 8.

Cells are the basic structural units of living organisms'. Explain.