Biology paper 1 foundation

Question 1

what system is the brain cell in?

Answer 1

Nervous system

Question 2

what system is the red blood cell in?

Answer 2

circulatory system

Question 3

what system is the sperm cell in?

Answer 3

reproductive system

Question 4

Give one thing that a animal cell has but a plant cell doesn’t have?

Answer 4

A (cell) wall

Question 5

Name two substances that move into most cells in the body from the blood?

Answer 5

1) glucose
2) water

Question 6

what molecules are produced when starch is digested?

Answer 6

Sugars

Question 7

where is digested food absorbed into the blood?

Answer 7

small intestine

Question 8

how many minutes did it take for all the starch to be digested at pH 6?

Answer 8

3.0

Question 9

What was the optimum pH for the amylase to work?

Answer 9

pH 7

Question 10

what is the evaporation of water from leaves called?

Answer 10

Transpiration

Question 11

suggest one change to the investigation that would increase the rate of water loss from the plant.

Answer 11

increase air movement

Question 12

which blood vessel is the vena cava?

Answer 12

right atrium

Question 13

which chamber of the heart pumps blood to the body?

Answer 13

left ventricle

Question 14

what is the function of valves?

Answer 14

to stop blood flowing in the wrong direction.

Question 15

explain one way the capillary is adapted for its function?

Answer 15

walls that are one cell thick so there is short diffusion distance.

Question 16

explain why having more red blood cells will improve an athletes performance?

Answer 16

more oxygen can be carried and oxygen is needed for respiration so more energy can be transferred.

Question 17

(the picture of a tube leading to the lungs)

Answer 17

trachea

Question 18

(the picture of the two branches facing different directions entering the lungs fully.)

Answer 18

bronchus

Question 19

give two ways that the lungs are adapted for efficient gas exchange.

Answer 19

1) many alveoli
2) large surface area

Question 20

suggest a national policy the could help people to lose weight.

Answer 20

exercise campaign.

Question 21

suggest why BMI categories were determined before the woman became pregnant.

Answer 21

health risk

Question 22

give one way measles is spread from person to person.

Answer 22

droplets

Question 23

suggest one way a person could reduce their chance of catching athletes foot.

Answer 23

use a fungicide

Question 24

Describe how the student could use the apparatus to estimate the mean length of onion cells on the slide.
( 7 steps )

Answer 24

1) place ruler on (microscope) stage
2) focus on ruler
3) measure diameter in mm
4) replace ruler with slide
5) use same magnification
6) estimate number of cells that fit across field of view
7) divide diameter

Question 25

explain one way a sperm cell is adapted for its function.

Answer 25

Has a long tail that helps it swim around.

Question 26

give one way that you can tell that the cell in figure 1 is not a plant cell.

Answer 26

a cell wall

Question 27

which part of a cell controls the movement of what substance into and out of the cell?

Answer 27

cell memberane

Question 28

what is the name of the process that moves oxygen molecules into the cell? Why?

Answer 28

diffusion reason: from high concentration to low concentration.

Question 29

which part of the digestive system produces amylase ?

Answer 29

A

Question 30

what is the independent variable in this investigation?

Answer 30

pH of the Amylase solution.

Question 31

what colours do the symbols in the key represent?

Answer 31

black and orange

Question 32

where do the plants obtain water for photosynthesis from?

Answer 32

soil

Question 33

calculate mass x in table 1

Answer 33

501.7 grams

Question 34

what was the rate of water loss from the plant?

Answer 34

1.8 grams/hours

Question 35

which blood vessel in figure 6 is the vena cava?

Answer 35

A

Question 36

what is the name of the blood vessel that carries blood to the heart muscle?

Answer 36

coronary artery

Question 37

which type of blood vessel has valves?

Answer 37

vein

Question 38

what is 5million written in standard from?

Answer 38

5 times 10 to the power of 6

Question 39

person most likely to have an infection.

Answer 39

person w

Question 40

person whose blood will not clot properly

Answer 40

person x

Question 41

where does gas exchange happen in the breathing system?

Answer 41

D

Question 42

Explain the differences between in the air breathed into the lungs and the air breathed out of the lungs.

Answer 42

not lots of oxygen breathed out lots of co2 breathed out more water vapour exhaled is warmer

Question 43

Determine the BMI category for this person

Answer 43

overweight