Animal Hormones Practice Questions

When the body prepares for fight or flight, blood glucose concentration is raised. Which organ is the target organ of adrenalin in this response?

☐ A kidney

☐ B liver

☐ C lungs

☐ D pancreas

Put a cross ( ☒ ) in the box next to your answer.

Complete the table by naming the hormone produced by the thyroid gland and by the ovaries.

Endocrine gland	Hormone produced
testes	testosterone
thyroid gland
ovaries
adrenal glands	adrenalin

Describe how a hormone is transported from the endocrine gland that makes it to its target organ.

Give one difference between a response brought about by the nervous system and a response brought about by the endocrine system.

Which of these is a barrier method of contraception?

☐ A contraceptive implant

☐ B diaphragm

☐ C contraceptive patch

☐ D combined pill

Put a cross ( ☒ ) in the box next to your answer.

A couple use a barrier method as well as a hormonal method of contraception. Give one advantage of also using a barrier method.

On which day of this cycle would ovulation usually occur?

☐ A day 1

☐ B day 7

☐ C day 14

☐ D day 28

Put a cross ( ☒ ) in the box next to your answer.

Name the hormone released by the ovaries that causes the lining of the uterus to build up.

Describe what happens to the lining of the uterus during menstruation.

Name the endocrine gland that releases this hormone.

Explain how adrenalin acts on the liver to increase the concentration of glucose in the blood.

State one other effect of adrenalin on the body in the fight-or-flight response.

Calculate the percentage increase in the worker's heart rate.

Explain why the worker's blood glucose concentration increased.

Explain how the increase in heart rate helps the worker's muscles to respond to the alarm.

Name the gland that releases thyroid stimulating hormone (TSH).

Describe how the body responds when the concentration of thyroxine in the blood falls below the normal level.

State the effect of thyroxine on the body.

State the day on which ovulation occurred and give a reason for your answer, using data from the table.

Explain the change in the concentration of progesterone between day 14 and day 22.

Explain why the concentration of FSH falls after day 14.

Name the two hormones contained in the combined contraceptive pill.

Explain how the combined contraceptive pill prevents pregnancy.

Give one disadvantage of using the combined pill as the only method of contraception.

At the start of IVF the woman is given a hormone so that several eggs mature at the same time. Name this hormone.

Describe the stages of IVF that take place after the eggs have been collected from the woman's ovaries.

Explain why IVF can allow this woman to become pregnant even though her oviducts are blocked.

State what is meant by the term ovulation.

Explain how clomifene therapy may increase this woman's chance of becoming pregnant.

Women receiving clomifene therapy are more likely to have twins than women who do not. Suggest why.

Explain how the hormones FSH, LH, oestrogen and progesterone interact to control the events of the menstrual cycle.

State the effect of this patient's thyroxine level on her metabolic rate.

Explain why the patient's TSH level is above the normal range.

After several months the patient's thyroid gland becomes visibly enlarged. Explain why.

Evaluate the use of IVF as a fertility treatment for women aged over 40.

During pregnancy the concentrations of oestrogen and progesterone in the blood remain high. Explain why a pregnant woman does not ovulate or menstruate.