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Human breast milk is produced and secreted by gland cells. These gland cells have adaptations that include many mitochondria and many Golgi vesicles. Explain the role of these cell adaptations in the production and secretion of breast milk.

(Many mitochondria) release energy / ATP for movement of vesicles / synthesis of protein / active transport; 2. (Many Golgi) vesicles transport protein / glycoprotein / milk to cell membrane / out of cell;
Answered by • Biology tutor
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Describe how an enzyme increases the rate of a biochemical reaction?

An enzyme has an active site at which it binds to the substrates involved in the biochemical reaction. This results in the formation of an enzyme-substrate complex. The formation of such an intermediate comp...
RS
Answered by Rebecca S. • Biology tutor
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Over-watering a plant can result in the soil around a plant's roots becoming saturated with water, reducing the amount of oxygen available to the roots. Using your knowledge of aerobic and anaerobic respiration, explain how over-watering can kill a plant.

When there is less oxygen available in the soil for uptake by plant roots, the root cells will be forced to increase their usage of anaerobic respiration over aerobic respiration. Anaerobic respiration produ...
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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 microorgan...
MC
Answered by Mark C. • Biology tutor
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How is blood glucose concentration regulated?

It's important that glucose levels in the blood are kept at a constant, as glucose is a key component for cell respiration. The mechanisms for glucose regulation involve the hormones insulin and glucagon. If...
ML
Answered by Megan L. • Biology tutor
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