Endocrine system and Hormonal coordination

Question 1

What are the human body’s two communication systems?

Answer 1

Endocrine system
Nervous system

Question 2

What makes up the endocrine system?

Answer 2

Glands

Question 3

Name 6 glands that secrete hormones

Answer 3

Pituitary gland
Pancreas
Thyroid
Adrenal Gland
Ovary
Testes

Question 4

What does the pituitary gland do?

Answer 4

‘MASTER GLAND’
~ Secrete hormones into the blood to either have an effect on the body or to prompt other glands to produce hormones

Question 5

What does the pancreas do?

Answer 5

Secretes insulin which controls blood sugar levels

Question 6

What does the thyroid do?

Answer 6

Secretes thyroxine
Controls metabolic rate, heart rate and body temperature

Question 7

What is thyroxine made up of?

Answer 7

Made using iodine

Question 8

What is the purpose of the hormone thyroxine?

Answer 8

Controls how much energy your body uses, oxygen use, brain growth

Question 9

What does the adrenal gland do?

Answer 9

Secretes adrenaline
Involved in ‘fight or flight’ situations

Question 10

What does the ovary secrete?

Answer 10

Oestrogen

Question 11

What is oestrogen involved in?

Answer 11

Menstruation
Puberty

Question 12

Where is testosterone secreted?

Answer 12

Testes

Question 13

What is testosterone involved in?

Answer 13

Puberty

Question 14

What does adrenaline do?

Answer 14

-increases heart rate
-boost delivery of oxygen
and glucose to brain and
muscles to prepare for
‘fight or flight’

Question 15

How does IVF Treatment work?

Answer 15

mother is given FSH and LH to stimulate maturation of several eggs

eggs collected from mother and are fertilised in a lab

eggs develop in to embryos

one or two eggs are inserted in to the mothers uterus when embryos are still a tiny ball of cells

Question 16

What is the purpose of hormones in plants?

Answer 16

To coordinate and control their growth and their responses to light and gravity

Question 17

What is phototropism?

Answer 17

Orientation and growth of plants in response to light

Question 18

What is geotropism?

Answer 18

Growth of plants in response to gravity

Question 19

What are plant hormones used in?

Answer 19

Used in agriculture and horticulture to control the growth of desirable plants and crops

Question 20

What is the function of AUXIN?

Answer 20

Plant growth regulator

• Unequal distributions of auxin cause unequal growth rates in plant roots and shoots

Question 21

What is the agricultural use of AUXIN?

Answer 21

-Weedkiller
-Rooting powder
-Promoting growth in
tissue cultures

Question 22

What is the function of ethene?
(plants)

Answer 22

Acts as a hormone to control cell division

Question 23

What is the agricultural use of ethene?

Answer 23

Control ripening of fruit during storage and transport
(e.g bananas)

Question 24

What is the function of gibberellins?

Answer 24

Regulates developmental processes

e.g initiating seed germination

Question 25

What is the agricultural use of gibberellins?

Answer 25

End seed dormancy
Promote flowering
Increase fruit size

Question 26

What is metabolism?

Answer 26

All the chemical reactions in the cells of an organism, including respiration