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Mayank1444
Mayank1444
@mayank1444
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Joined: Oct 11, 2021
Last seen: Nov 14, 2021
Topics: 0 / Replies: 2158
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Answer to: Lysosomes are known as suicide bags. Why?

Lysosomes are known as suicide bags of the cell because they contain lytic enzymes capable of digesting cells and unwanted materials. When lysosomes b...

1 year ago
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Answer to: Write down two main functions of (a) Endoplasmic reticulum (b) Lysosome

(a) Endoplasmic reticulum It plays a major role in the production, processing, and transport of proteins and lipids. It produces transmembrane ...

1 year ago
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Answer to: Explain why do spinach looks green, papaya yellow and edible part of watermelon red?

Spinach is green because of the presence of green pigment chlorophyll. Papaya is yellow because of the presence of caricaxanthin. The edible part of a...

1 year ago
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Answer to: What will happen in a cell if its nucleus is removed? Give reasons in support of your answer.

If the nucleus of a cell is removed the cell will not be able to carry out its vital functions and will die.

1 year ago
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Answer to: Write the main differences between plant and animal cells.

Plant cell Cell wall is present. Nucleus lies on one side of the cell. Animal cell Cell wall is absent. Nucleus lies on one center of the ce...

1 year ago
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Answer to: Distinguish between the following: (a) Chromoplast and chloroplast (b) Ribosome and centrosome

(a) Chromoplast Chromoplasts are plastids and contain carotenoids. They lack in chlorophyll. Chromoplasts may develop from green chloroplasts. C...

1 year ago
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Answer to: Name the following: (a) Smallest cell organelle (b) Largest cell organelle; (c) ER studded with ribosomes

(a) Ribosome (b) Plastid in plants and Nucleus in animal cell. (c) Rough endoplasmic reticulum contains a ribosome attached to its surface. (d)...

1 year ago
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Answer to: What would happen when eukaryotic cells are placed in hypotonic, hypertonic and isotonic solutions?

When eukaryotic cells are placed in the following solutions the changes observed are as follows: Hypotonic Solution: The water moves from a region ...

1 year ago
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Answer to: Write a note on endocytosis.

Endocytosis is defined as the process of trapping a particle or substance from the external environment by engulfing it. Endocytosis is of two types v...

1 year ago
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Answer to: Write down the differences between diffusion and osmosis.

Diffusion: This occurs in all mediums - Solid, Liquid and gas. Do not require a semipermeable membrane. The flow of particles occurs in all the ...

1 year ago
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Answer to: Set up an experiment to demonstrate osmosis.

1. Take three raisins and weigh them on the common balance. Let this value be W1. 2. Keep these raisins in a bowl containing water for 2 hours. ...

1 year ago
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Answer to: Give an example of diffusion across the plasma membrane.

In unicellular organisms like Amoeba, gaseous exchange takes place through the process of diffusion.

1 year ago
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Answer to: Enumerate functions of the plasma membrane.

The plasma membrane forms a barrier between the cell organelles from the outside environment. It allows only certain molecules to pass through it. ...

1 year ago
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Answer to: Describe the proteins of the plasma membrane.

There are two types of proteins molecules are found in the plasma membrane: (i) Intrinsic proteins: They completely cover the lipid bilayer. (ii...

1 year ago
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Answer to: Give a brief account of the discovery of the cell.

Cells are the basic structural and functional unit of life. The term cells was first coined in 1665 by a British scientist Robert Hooke. He was the fi...

1 year ago
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Answer to: Mention differences between light microscope and electron microscope.

Light microscope Uses light as an illuminating source. Both live and dead specimen can be seen. It has low resolution. Electron microscope ...

1 year ago
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Answer to: Write down the differences between the nucleus and nucleoid.

Nucleus A nucleus is a membrane-bound structure in which eukaryotes store their genetic materials. Contains many chromosomes. It is an irregular...

1 year ago
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Answer to: Write down the differences between organ and organelle.

Organ: These are the parts of a body. These are found in multicellular organisms. These are macroscopic in nature. Example: Brain, Heart, Lungs...

1 year ago
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Answer to: Distinguish between prokaryotic and eukaryotic cells.

Prokaryotic: Organisms are always unicellular. Nucleus is absent. Cell division takes place through binary fission. DNA arrangement is circular...

1 year ago
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