Biology Interview Questions and Answers

1 :: Which is better to grow plants in Rock sand or soil?

When we grew plants inside, with no wind, and the plants in the rocks grew better than the plants that were growing from the sand and dirt from outside.

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2 :: What happens when the cell membrane or plasma membrane ruptures or breaks down?

When cell membrane ruptures Ions leek out and unless repaired in time the cell will die. As we know that the plasma membrane is not stationary, and it is made of lipids and protein, so when damage happens the cell repairs itself by producing new part like the damaged one that is why it is dynamic.

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3 :: What are analogies for mitochondria?

Well, as you know, the mitochondria are the producers of most of a cell's energy and the nucleolus creates ribosomes. The cell wall is only in a plant cell and is a rigid layer of non-living material that surrounds the cells of plants and some organisms.

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4 :: What is a terrestrial organism?

'Terra' is the Latin word for earth. Therefore, an animal that lives on the surface of the earth is called terrestrial. This is the same root word as 'extraterrestrial' meaning an alien.

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5 :: What is the optimum temperature for catalyses?

For any chemical reaction, the reaction rate increases with temperature, so the higher the temperature, the faster the rate. For any enzymatic reaction, the reaction rate will increase with temperature until the temperature at which the enzyme begins to denature is reached, and this is the optimum temperature.

The denaturizing temperature depends on the composition of the protein (its amino acid sequence), which varies for catalyses from different organisms. Therefore, the answer to your question is that the optimum temperature is dependent on the source organism.

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