Biology - paper 1 (organisation)

  • Created by: rosieraby
  • Created on: 12-05-18 14:17
What is health?
The state of physical and mental well being
1 of 20
What are risk factors?
Factors that lead to an increased rate of disease
2 of 20
What can a poor diet, lack of exercise and smoking lead to?
Cardiovascular disease
3 of 20
What can obesity lead to?
Type 2 diabetes
4 of 20
What organs are affected by alcohol?
Brain and liver
5 of 20
What risk factor can lead to lung cancer and lung disease?
Smoking
6 of 20
What can carcinogens, including ionising radiation, lead to?
Cancer
7 of 20
What is cancer?
Changes in cells that lead to uncontrolled growth and division
8 of 20
What type of tumour is contained in one area and does not spread?
Benign
9 of 20
What type of tumour can invade neighbouring tissues and other parts of the body to form secondary tumours?
Malignant
10 of 20
Which leaf layer contains the most chloroplasts?
Palisade mesophyll
11 of 20
In which leaf cell layer does gaseous exchange occur?
Spongy mesophyll
12 of 20
Which plant tissue transports water and dissolves ions?
Xylem
13 of 20
Which plant tissue transports dissolved sugars?
Phloem
14 of 20
Which plant tissue is found at the growing tips of roots and shoots?
Meristem
15 of 20
Which cells are responsible for controlling the opening and closing of stomata?
Guard cells
16 of 20
What are the pores on the underside of a leaf called?
Stomata
17 of 20
Which four factors affect the rate of transpiration?
Temperature, humidity, wind and light intensity
18 of 20
What is transpiration?
The evaporation of water through the stomata in a leaf
19 of 20
Which two processes do root hair cells take in water and mineral ions?
Osmosis and active transport
20 of 20

Other cards in this set

Card 2

Front

What are risk factors?

Back

Factors that lead to an increased rate of disease

Card 3

Front

What can a poor diet, lack of exercise and smoking lead to?

Back

Preview of the front of card 3

Card 4

Front

What can obesity lead to?

Back

Preview of the front of card 4

Card 5

Front

What organs are affected by alcohol?

Back

Preview of the front of card 5
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