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Biology
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Name three cell structures that are present in a plant cell but absent from an animal cell.

Plant cells have a cell wall for additional strength and protection. Plant cells also have a large vacuole filled with cell sap to increase the cellular turgor. Finally, plant cells have chloroplasts fill...

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Answered by Gabriella L. Biology tutor
22224 Views

What gases will be taken in and given out by a green plant (a) in darkness, (b) in bright sunlight?

(a) In low light intensities a green plant will be taking in oxygen and giving out carbon dioxide. (b) In bright sunlight a green plant will be taking in carbon dioxide and giving out oxygen.

SP
Answered by Sonali P. Biology tutor
15559 Views

What are enzymes? What is the importance of enzymes for living beings?

Enzymes are proteins that are catalysts of chemical reactions. Chemistry shows us that catalysts are non-consumable substances that reduce the activation energy necessary for a chemical reaction to occur....

SP
Answered by Sonali P. Biology tutor
26725 Views

Why do enzymes stop working at high temperatures?

With this question, you have to remember that enzymes are proteins. When the temperature gets too hot, the enzyme denatures. Denaturing is where the bonds that hold the enzyme together br...

CR
Answered by Callum R. Biology tutor
8260 Views

How can I score well in the synoptic essay?

There are two main parts to the synoptic essay, the subject/specification content which will probably make up around 80-90% of your essay, and then the extra content, which is composed of things above the...

CR
Answered by Callum R. Biology tutor
4375 Views

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