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Flashcards in Paper 5 Deck (28):
1

Complete the table

Characteristic: Description:
Moving ?
Excreting. ?
? Increasing in size and mass
? Getting energy from food
Reproducing. ?

Characteristic: Description:
Moving Not staying in the same place
Excreting. Removing waste products
Growing Increasing in size and mass
Respiring Getting energy from food
Reproducing. Producing young

2

1-Put the sentences into the correct method:
Movement of substances against a concentration gradient

2-Movement of water from a dilute solution to a more concentrated solution through a partially permeable membrane

3-Movement of substances down a concentration gradient

1- active transport
2- osmosis
3- diffusion

3

An example of diffusion in the lungs of a mammal involves a substance called oxygen, which moved from the…….to the…….

Alveoli
Capillaries/ blood

4

An example is not osmosis in the kidney of a mammal will involve a substance called……., Reduced from the nephron to the…….

Water
Capillaries/blood

5

An example of active transport in a flowering plant involves uptake of a mineral salt, which moves from the…….To the…….In a root hair cell

Soil
Cytoplasm

6

Name two groups of organisms that can act as decomposers in food chains

Fungi & bacteria

7

Describe the role of decomposes in the carbon cycle (3 marks)

Rot/decay/digest/break down dead organisms

Release carbon dioxide

Respiration

Carbon dioxide absorbed by plants/used in photosynthesis

8

Suggest way cloudy cornea makes it difficult for a person to see clearly (2 marks)

Lights doesn't pass through easily/is scattered/not focused

9

Describe what happens to bacteria after it has been ingested by a white blood cell (2 marks)

Digested/killed/destroyed

10

Give two functions of bile

Neutralises acid

Emulsification of lipids

11

The product of digestions are absorbed by villi in the small intestines. Explain how the structure of villi helps absorption of these products (2 marks)

Capillaries

Lacteals

Large surface area

Thin walls/short distance

12

Explain what is meant by the time ultrafiltration
(2 marks)

Movement and small molecules from the blood into the kidney under pressure

13

Some substances affect the secretion of ADH. these substances increase the production of urine and Are known as diuretics. Suggest how diuretics increase the production of urine (3 marks)

Pituitary glands

Less ADH

Collecting ducts less permeable

Less water reabsorbed into blood

14

If using other male and female gamete's name is fertilisation, which produces a single cell called a…….This cell divides and develops into An……., Which is protected by…….Fluid in the uterus

Zygote
Embryo
Amniotic

15

Which type of reproduction involved gametes?

Sexual

16

Name the process that releases energy in human cells

Respiration

17

Complete the balanced symbol equation for respiration

C6H12O6 + 6O2 --> 6H2O + energy

18

Explain why scientists need a lot of energy to work in Arctic conditions

Lose heat

To maintain body temperature

Need to generate/replace heat

19

Describe and explain one way in which the skin helps in temperature regulation in cold conditions

Narrowing of blood vessels at skin surface

Vasoconstriction

Takes blood away from the skin

To conserve heat

Decreased sweating

20

Describe how fungi feed (2 marks)

Secrete enzymes

External digestions

Product absorbed

21

Explain how the use of nitrate fertiliser on a farmers field can affect algal growth in rivers (4 marks)

Leeching/run off of fertiliser into river

Increasing algal growth

Amino acid/proteins

Eutrophication

22

Cauliflowers are vegetables. They may be grown by micropropagation. Small pieces of plants are grown on nutrient jelly. The Young plants are then transferred into growing trays.
The technique produces clones.

Explain why the young cauliflower plants are described as clones (2 marks)

The young cauliflowers are genetically(1) identical(1)

23

Cauliflowers are vegetables. They may be grown by micropropagation. Small pieces of plants are grown on nutrient jelly. The Young plants are then transferred into growing trays.
The technique produces clones.

Give one advantage and one disadvantage to the grower of producing new cauliflower plants that clones.

Advantage: all have lots of good characteristics / features

Disadvantages: more susceptible to disease

24

What is meant by the term transgenic (2 marks)

New genes/DNA added

From other species

25

Describe two possible uses of transgenic animals

Pigs given human insulin gene to produce human insulin

Sheet/cows produce milk with proteins to treat cystic fibrosis

Pig grows human organs (for use in transplantation)

26

Name the vessel to which blood enters the left side of the heart

Pulmonary vein

27

Cystic fibrosis is a condition that affects the lungs. People with cystic fibrosis have mucus in the air passages of the lungs that is Thicker and stickier than normal.

Suggest how cystic fibrosis affects the ability of a person to do exercise. (3 marks)

Exercise more difficult

Blockage to air passages

Less oxygen/less gas exchange/left diffusion
Into blood/capillaries

less respiration

28

Cystic fibrosis is an inherited condition. Attempts have been made to treat people with cystic fibrosis by transferring normal genes into lung cells with the defective genes. This is an example of genetic modification.

Describe how a new gene can be transferred from one organism to another using genetic modification (6 marks)

Gene/DNA cut

Restriction enzyme

Plasmid/phage/virus

Recombinant

Vector

Inhaled/aerosol

Sticky ends

Ligase