Which one of the following statements about enzymes is TRUE? a
Enzymes reduce the amount of energy needed for a reaction to occur.
b
Each enzyme can react with a wide range of reactants.
c
Enzymes are produced quickly because they are used up so quickly.
d
Enzymes are a type of carbohydrate.

Explain why phospholipid molecules form a bilayer. (3 marks)

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

Lactic acid and energy are produced in muscle cells during choose 1 aerobic respiration cellular respiration anaerobic respiration cellular division