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name 3 organelles that are present only in plant cells

cell wall, vacoule, chloroplasts
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Answered by Sagar S. Biology tutor
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Describe the benedicts test for non reducing sugars

heat with HCl 2) neutralise with NAHCO3 3) add benedicts soln and gently heat in a water bath 4) if the soln changes colour from blue to a brick red precipitate, then non reducing sugars were involved, if no...
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Answered by Sagar S. Biology tutor
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What is Osmosis?

The one definition of osmosis is 'The movement of water from a high concentration to a low concentration, down it's concentration gradient, across a partially permible membrane, until osmotic pressue is equa...
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Answered by Alexandra V. Biology tutor
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During the redox reaction in glycolysis, which molecule acts as the oxidising agent?

The oxidation of glyceraldehyde 3-phosphate (G3P), a three-carbon sugar, yields energy. In this oxidation, electrons and H+ are transferred to NAD+, forming NADH, and a phosphate group is attached to the oxi...
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Answered by Daniel A. Biology tutor
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Why is internal temperature regulation an important homeostasis?

Internal temperature of your body must be tighly controlled. The key processes of your body are driven by enzymatic activity and there is an optimal temperature at which these operate. If body temperature in...
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Answered by Archie I. Biology tutor
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