B5

Question 1

The human skeleton starts of as cartilage but becomes ____________ by the addition of _____________ & _____________.

Answer 1

Ossified by the addition of calcium and phosphorus.

Question 2

What does the term ossified mean?

Answer 2

Turned into bone

Question 3

Which muscles are antagonistic muscles in the arm?

Answer 3

Biceps and triceps

Question 4

What are synovial joints?

Answer 4

Ball and socket joints and hinges

Question 5

What type of circulation occurs in:
A humans
B fish

Answer 5

A double circulatory system

B single circulatory system

Question 6

What controls the heart muscle contraction?

Answer 6

Pacemakers (Sino-atrial node, SAN) and (Atrioventricular node, AVN)

Question 7

Supply of donors are limited due to what factors:

Answer 7

• Shortage of donors
• Tissue match
• Shape of organ
• age

Question 8

What drugs can be used to control clotting of the blood?

Answer 8

• aspirin
• warfarin
• heparin

Question 9

What causes agglutination?

Answer 9

A mismatch of blood groups

Question 10

What happens to the blood in a heart with a hole in it?

Answer 10

Oxygenated and deoxygenated blood are mixed and so carry less oxygen

Question 11

Where does gaseous exchange take place?

Answer 11

In the alveoli

Question 12

What are symptoms of asthma?

Answer 12

• breathing difficulties
• a tight chest
• wheezing

Question 13

What are the following broken down by?
A carbohydrates
B protein
C fats

Answer 13

A carbohydrase
B protease
C lipase

Question 14

What is starch broken down into?

Answer 14

Maltose then to glucose

Question 15

The stomach contents are __________ and the small intestine is __________.

Answer 15

A acidic

B alkaline

Question 16

What is small digested food molecules absorbed into?

Answer 16

Blood plasma or lymph

Question 17

Where is growth hormone produced in?

Answer 17

Pituitary gland

Question 18

Which at hormones control the menstrual cycle?

Answer 18

Oestrogen, progesterone, FSH & LH

Question 19

What is amniocentesis?

Answer 19

Extracting and testing cells in the amniotic fluid

Question 20

What is chromosome analysis?

Answer 20

Using a blood test to test cells for any chromosome abnormalities

Question 21

Follicle stimulating hormone

Answer 21

Stimulates an egg to develop in an ovary

Question 22

Luteinising hormone

Answer 22

Controls ovulation (egg release)

Question 23

Progesterone

Answer 23

Maintains uterus wall

Question 24

Oestrogen

Answer 24

Repairs the uterus wall

Question 25

After drinking a large quantity of water what happens to the amount of urine produced and the concentration?

Answer 25

The amount of urine increases and the concentration decreases

Question 26

The anti diuretic hormone (ADH) controls what and how?

Answer 26

Concentration of urea and by increasing the permeability of kidney tubules so that more water is reabsorbed also by controlling ADH production by using negative feedback production

Question 27

What is urea?

Answer 27

Excess and unwanted liquid waste and amino acid broken down in the liver

Question 28

Where does the blood containing urea enter into the kidney?

Answer 28

Through the Renal artery

Question 29

Blood without waste leaves through where?

Answer 29

Through the renal vein

Question 30

Waste removed from the kidneys leaves through where?

Answer 30

Ureters (as urine)

Question 31

Where does filtration take place?

Answer 31

In the nephrons

Question 32

What does the human internal skeleton consist of?

Answer 32

Cartilage and bone, which can repair themselves