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Biology

GCSE

Explain the importance of mitosis?

Mitosis is one of the two types of cell division in eukaryotes. It results in two daughter cells that are identical to the parent cells. The daughter cells have the same alleles in order for the organism'...

Answered by Defne A. • Biology tutor

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Guard cells open and close stoma in different conditions. When light intensity is high, potassium ions move into guard cells. Describe how this movement of potassium ions causes the stoma to open.

When the potassium ions move into the guard cells they increase the concentration. This causes water to move into the guard cells from more dilute areas by osmosis. The additional water leads to the guard...

Answered by Emily W. • Biology tutor

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b)Plants can use the glucose they have made to supply them with energy. Give four other ways in which plants use the glucose they have made.

To make starch, oil, amino acids and cellulose.

Answered by Emma S. • Biology tutor

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a) Plants need energy to make glucose. How do plants get this energy?

Light is trapped, by the chloroplasts.

Answered by Emma S. • Biology tutor

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Describe the process of saprophytic nutrition in soil microorganisms

Enzymes are secreted by the microorganisms and extracellular digestion takes place as the enzymes break down any complimentary substrate. Next, the products of this digestion are absorbed into the microor...

Answered by Mark C. • Biology tutor

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