Match the terms with the correct definitions. 1. a nonprotein molecule or ion that is needed for an enzyme to carry out catalysis 2. an enzyme unable to act as a catalyst because its cofactor is removed 3. an organic molecule, such as a vitamin, needed by an enzyme to carry out catalysisa. coenzymeb. cofactorc. apoenzyme

1- a(cofactor)

2.-c(apoenzyme)

3-b(coenzyme)

Explanation:

Cofactor are non -protein molecules that catalyzes reaction,they increase the rate of chemical reaction. They can be organic or inorganic.

Coenzyme can be derived from vitamins,organic molecules, they facilitate chemical reaction and can be bounded strongly to protein while others are bounded loosely to protein.

Apoenzyme are inactive enzymes that cannot catalyze reaction they lacks cofactor.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.