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Why are enzymes such as proteases and lipases used in some washing powders?

The role of enzymes such as proteases and lipases in the body is to break down proteins and fats respectively during digestion. Proteins are broken down into amino acids and fats are broken down into fatty a...
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Answered by Megan B. • Biology tutor
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Explain how a small release of glucagon into the body can cause a rapid increase of blood glucose

A low level of glucose in the blood will stimulate secretion of glucagon to increase the amount of glucose in the blood. Glucagon causes the liver to release stores of glycogen to be converted to glucose. th...
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Answered by Zainab H. • Biology tutor
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What happens during the light-dependent reaction?

During the light dependent reaction, chlorophyll in the chloroplasts within a plant cell will absorb light energy, this will then excite electrons and an electron will be removed from the chlorophyll, once t...
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Answered by Deo V. • Biology tutor
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Describe the flow of blood through the human circulation

Blood needs to circulate around the body in order to supply organs with nutrients and oxygen and to remove waste. Blood is oxygenated in small, one cell thick vessels in the lungs. These flow together to for...
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Answered by Antonia M. • Biology tutor
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How does the body respond to a rise in temperature?

A rise in body temperature will be detected by the thermoregulatory centres in the hypothalamus. When the core body temperature exceeds 37 degrees C the blood vessels will dilate and shunt vessels will const...
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Answered by Hannah F. • Biology tutor
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