Feb mocks

Question 1

Lungs to Heart

Answer 1

Pulmonary Vein

Question 2

Heart to other organs

Answer 2

Aorta

Question 3

Aorta to liver

Answer 3

Hepatic Artery

Question 4

Aorta to Gut

Answer 4

Mesentric Artery

Question 5

Aorta to Kidneys

Answer 5

Renal Artery

Question 6

Kidneys to Vena Cava

Answer 6

Renal Vein

Question 7

Gut to Liver

Answer 7

Hepatic portal vein

Question 8

Liver to Vena Cava

Answer 8

Hepatic Vein

Question 9

Heart to Lungs

Answer 9

Pulmonary Artery

Question 10

What do the left and right sides of the heart do?

Answer 10

The right side pumps deoxygenated blood to the lungs. The left side pumps oxygenated blood to the body.

Question 11

Plants- Cell wall and carbohydrate storage

Answer 11

Carbs stored as starch or sucrose
Cellulose cell wall

Question 12

Animals- Cell wall and carbohydrate storage

Answer 12

No cell wall
Glycogen storage

Question 13

Fungi- Cell wall and carbohydrate storage and structure

Answer 13

Store Carbs as Glycogen
Chitin cell wall
consist of threads
of cells called hyphae. Whole structure
is called a mycelium

Question 14

Defining features of bacteria

Answer 14

Flagellum
Plasmids
No nucleaus- single chromosome
Cell wall and membrane

Question 15

Defining features of virus + plant and human example

Answer 15

DNA surrounded by protein coat
Tobacco Mosaic
Influenza

Question 16

Pathogen example

Answer 16

Plasmodium- malaria

Question 17

Fungi example

Answer 17

Mucor

Question 18

Protoctist example

Answer 18

Amoeba

Question 19

Structure of veins etc

Answer 19

Question 20

What does Plasma store/carry?

Answer 20

Urea, Co2, hormones

Question 21

Phagocytes

Answer 21

Engulf and digest pathogens

Question 22

Lymphocytes

Answer 22

release antibodies, which destroy pathogens

Question 23

How does saturated fat lead to blood flow restrictions?

Answer 23

Fatty deposits will build up in the artery walls. The fatty deposits narrow the lumen of the artery. This is a particular problem in the narrow coronary arteries as it restricts blood flow to the heart muscles cells.

Question 24

Carbon dioxide/heat production from pea test

Answer 24

2 sets of peas in thermos flasks
Both in milton solution to kill bacteria
1 set dead(as a control to compare), 1 live
Measure temp change in each
Gas deliver tube to bubble through limewater

Question 25

Sugar test

Answer 25

Benedicts test
Put in a water bath at 80c for 5 min
Blue to Brick red

Question 26

Starch test

Answer 26

Iodine test
Add a few drops of iodine solution
Yellow to blue/black if starch present

Question 27

Protein test

Answer 27

Buiret test
Equal amounts of;
watere
dilute potassium hydroxide
1% copper sulphate solution
Light blue to Light purple

Question 28

Lipids test

Answer 28

Emulsion test
abolsute ethanol
equal volume water
Colourless to cloudy if lipids present

Question 29

Function, source and deficiency of Iron

Answer 29

Forms haemoglobin, Red meat, Anemia

Question 30

Function, source and deficiency of calcium

Answer 30

To form bones and teeth, milk, fish, Rickets

Question 31

Function, source and deficiency of Vit A

Answer 31

protecting the surface of the eye, carrots, Night blindness.

Question 32

Function, source and deficiency of Vit C

Answer 32

maintaining skin+cartilage, Fresh Fruit, scurvy

Question 33

Function, source and deficiency of Vit D

Answer 33

Needed to absorb calcium and phosphate, oily fish, Rickets,