Gradegorilla Biology

10 minutes maximum! Can you do it in 5?

1-6 The diagram shows the hormones that control the menstrual cycle. Use the diagram to help answer the questions:

menstrual_cycle

1. What is happening in X?

A. Ovulation
B. Menstruation
C. Fertilisation
D. Maturation

2. Which hormone stimulates the lining of the uterus to build up?

A. Luteinising hormone LH
B. Follicle stimulating Hormone FSH
C. Oestrogen
D. Progesterone

3. Which hormone stimulates the ovary to make oestrogen?

A. Luteinising hormone LH
B. Follicle stimulating Hormone FSH
C. Oestrogen
D. Progesterone

4. Which hormone stimulates the release of a mature egg from the ovary?

A. Luteinising hormone LH
B. Follicle stimulating Hormone FSH
C. Oestrogen
D. Progesterone

5. After ovulation which hormone maintains the lining of the uterus wall?

A. Luteinising hormone LH
B. Follicle stimulating Hormone FSH
C. Oestrogen
D. Progesterone

6. Which of the following shows 2 statements about oestrogen that are correct?

A	Reduces the levels of FSH	Increases level of progesterone
B	Increases levels of FSH	Causes lining of uterus to break down
C	Increases the level of LH	Increases level of progesterone
D	Reduces the levels of FSH	Increases the level of LH

7-10: If fertilisation of an egg is successful the embryo formed develops into a foetus which becomes embedded in the lining of the uterus. The foetus develops into the baby which receives nutrients from its mother.

pregnancy

7. Name structure X.

A. Umbilical cord
B. Uterus
C. Amniotic sac
D. Placenta

8. At X which one of the following substances does not pass from mother to baby?

A. Oxygen
B. Glucose
C. Protein
D. Calcium ions

9. At X which two waste materials pass from the baby to the mother?

A. carbon dioxide and urea
B. Urine and faeces
C. Carbon dioxide and faeces
D. carbon dioxide and urine

10. What is the function of Y?

A. Provide nutrients to the baby
B. Protects the baby from knocks
C. Provides baby with oxygen
D. Stores the faeces produced by baby