Animal Coordination, Control & Homeostasis

Question 1

What is a hormone?

Answer 1

A chemical substance that alters the activity of the specific target organ

Question 2

What do hormones travel through?

Answer 2

Bloodstreams

Question 3

What is the endocrine system?

Answer 3

the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things

Question 4

What gland is known as the master gland?

Answer 4

The pituitary gland

Question 5

What part of the brain controls water balance, temperature and secretion of hormones?

Answer 5

The hypothalamus

Question 6

What is homeostasis?

Answer 6

The control over an internal environment to be constant

Question 7

What is the negative feedback mechanism?

Answer 7

A respond to a different condition which is not the ideal condition

Question 8

If a level in the negative feedback increases then what will the control do?

Answer 8

It will lower the level back to the ideal level

Question 9

What stimulates the hypothalamus to release TRH?

Answer 9

Low levels of thyroxine

Question 10

What hormone makes the Thyroid release more thyroxine?

Answer 10

TSH

Question 11

What is the effect of adrenaline?

Answer 11

Increases heart rate, blood flow, blood pressure and delivers oxygen and glucose to the brain and muscle better

Question 12

What is needed for respiration?

Answer 12

Glucose

Question 13

If glucose concentration is too high, what will the liver cells and muscle cells do?

Answer 13

They will convert excess glucose into glycogen

Question 14

What hormone regulates glucose concentration and where is it produced?

Answer 14

Insulin regulates glucose concentration and is produced in the pancreas

Question 15

What causes type 1 diabetes?

Answer 15

When the immune system attacks the pancreas which damages and destroys the cells that produce insulin

Question 16

What are the treatments of type 1 diabetes?

Answer 16

Insulin injections

Question 17

What are the causes of type 2 diabetes?

Answer 17

It is caused by the cells in the body being resistant to the insulin produced by the pancreas, your age and your weight

Question 18

What is the treatment for diabetes?

Answer 18

Insulin injections

Question 19

How can you prevent type 2 diabetes?

Answer 19

Eat well and do some exercise

Question 20

What is BMI?

Answer 20

A way to show if the person’s mass is healthy for their height

Question 21

What are the calculations for BMI?

Answer 21

Weight/height² or Waist/hip

Question 22

How long is the menstrual cycle?

Answer 22

28 days

Question 23

What does a follicle contain?

Answer 23

An immature egg

Question 24

What effect does FSH have on follicles?

Answer 24

They will grow and mature and the ovaries will start to make oestrogen

Question 25

What triggers ovulation?

Answer 25

LH surge

Question 26

What does progesterone do?

Answer 26

Maintains the lining of the uterus and stops the production of LH and inhibits FSH

Question 27

Name a benefit and a risk of oral contraceptives

Answer 27

99% effective but they have side effects and contain slow release of progesterone

Question 28

Name 3 non hormonal methods of contraception

Answer 28

Condom, diaphragms, coil (IUD), spermicidal agents, no intercourse during egg ovulation and surgical methods for men and women sterilisation

Question 29

What is the use of ART (assisted reproductive technology)?

Answer 29

Help to achieve pregnancy with the use of hormones and procedures

Question 30

What is clomifene?

Answer 30

A fertility drug