EASY
Earn 100
Genetic material of prokaryotes which is devoid of a nuclear envelope and consists of a single compacted DNA molecule (equal to a single chromosome) is called .
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Important Questions on Cell Structure and Organization
MEDIUM
Which of the following is not found in prokaryotes except?
MEDIUM
Which of the following is/are correct statement(s)?
MEDIUM
Which of the following statement is correct
MEDIUM
Choose the correct statements
i. Ribosomes are found in Cytoplasm, Chloroplasts, Mitochondria and on rough ER
ii. Mesosomes in bacteria are not the sites of DNA replication
iii. Algae cell wall made of cellulose, galactans, mannan and calcium carbonate
iv. Mitochondria, chloroplast and peroxisomes are the part of Endomembrane System
The correct answer is
MEDIUM
What would happen if the plasma membrane ruptures or breaks down?
EASY
Which type of ER will be more developed in protein-synthesizing cells?
MEDIUM
Swelling of raisins in pure water proves the process of
MEDIUM
How do substances like CO2 and water move in and out of the cell? Discuss.
EASY
Where are proteins synthesised inside the cell?
MEDIUM
Which organelle is known as the powerhouse of the cell? Why?
MEDIUM
Name the chemical substance which constitutes the genes (write the full form).
MEDIUM
If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?
EASY
Organelle other than nucleus, containing DNA is
EASY
Which type of cell division is required for growth and repair of body and which type is involved in formation of gametes?
MEDIUM
What would happen to the life of a cell if there was no Golgi apparatus?
HARD
Carry out the following osmosis experiment:
Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now,
(a) Keep cup A empty
(b) Put one teaspoon sugar in cup B
(c) Put one teaspoon salt in cup C
(d) Put one teaspoon sugar in the boiled potato cup D.
Keep these for two hours. Then observe the four potato cups and answer the following:
(i) Explain why water gathers in the hollowed portion of B and C.
(ii) Why is potato A necessary for this experiment?
(iii) Explain why water does not gather in the hollowed-out portions of A and D.
MEDIUM
Where do the lipids and proteins constituting the cell membrane get synthesised?
MEDIUM
Name two types of endoplasmic reticulum present in the cells.
EASY
Can you name the two organelles we have studied that contain their own genetic material?
