Problems and solutions in the environment

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What type of drug is caffeine?
Stimulant
1 of 45
How does carbon monoxide damage the body?
Reduces the body's ability to carry oxygen
2 of 45
What is a long term affect of alcohol use?
Liver damage
3 of 45
What effect does a depressant have on the heart rate?
Slows it down
4 of 45
What is a carcinogen?
A chemical that can cause cancer
5 of 45
What is a pathogen?
A disease-causing microorganism
6 of 45
Which type of microorganisms are most pathogens?
Bacteria
7 of 45
One of the main problems with viruses is that they:
damage the host cell when they reproduce
8 of 45
Which of these is one of the main problems with bacteria?
They produce toxins.
9 of 45
Which of the following is a virus? - Cholera; Tetanus; Polio
Polio
10 of 45
What is a lysozome?
An enzyme that kills bacteria
11 of 45
What is one way that antibiotics work?
They can stop bacteria from reproducing
12 of 45
Which of the following is an example of vertical transmission?
A disease passing from a mother to her unborn child
13 of 45
How is TB transmitted?
Droplets in the air
14 of 45
What does variation mean?
Difference between characteristics in different organisms
15 of 45
Some bacteria are resistant. What does this mean?
They aren't killed by an antibacterial agent
16 of 45
Which of the following are effective against bacteria?
Antibiotics
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Why are some bacteria becoming resistant?
Overuse of antibiotics
18 of 45
Which of the following is a resistant bacteria? - HIV; The Flu; MRSA
MRSA
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What is biomass?
The amount of biological material
20 of 45
If the number of brown trout decreases due to over fishing, what would be the most likely effect on the dragonfly nymph population?
The population increases
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What happens to the amount of energy transferred from one step to the next in a food chain?
It decreases
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What do food chains always start with?
A producer
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Why is energy lost in a food chain?
Energy is lost to bodily process eg respiration and growth
24 of 45
What is mutualism?
When two different organisms rely on each other to survive
25 of 45
What type of feeding relationship does mistletoe show?
Parasitism
26 of 45
Which of the following is not an indicator of air pollution: - Blackspot fungus on roses; the presence of lichens; the presence of bloodworm
The presence of bloodworm
27 of 45
Which of the following is a positive impact of humans on the environment? - Raw materials being used up; recycling increasing; more waste being prudced
Recycling increasing
28 of 45
What effect does sulfur dioxide have on the environment?
Contributes to acid rain
29 of 45
Which type of lichens can survive in quite polluted air?
Crusty
30 of 45
What causes eutrophication?
Fertilisers in water
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Why do we need to recycle metals?
We use less energy recycling materials
32 of 45
Why are alloys difficult to recycle?
They are mixtures of metals
33 of 45
Which process adds carbon dioxide to the atmosphere?
Respiration
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Which of the following is not a method of converting nitrogen to nitrates? - Denitrifying bacteria; Lightning; Nitrogen fixing bacteria
Denitrifying bacteria
35 of 45
What is nitrogen used for in a plant?
Making proteins
36 of 45
How do plants take in nitrogen?
Through the roots
37 of 45
In what form is nitrogen taken into a plant?
Nitrates
38 of 45
Which of the following plants would have nitrogen fixing bacteria? - Peas; tomatoaes; cabbages
Peas
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What word describes the relationship between the plant and nitrogen-fixing bacteria?
Mutualistic
40 of 45
Which microorganism turns nitrogen gas into ammonia?
Nitrogen fixing
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Which microorganisms convert nitrates to nitrites?
Denitrifying bacteria
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Which microorganism turns ammonia into nitrates?
Nitrifying
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Which of the following is another method for fixing nitrogen? - Nitrogen dissolving in rainwater; plants taking in nitrogen through their leaves; lightning
Lightning
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What is the name of the soil bacteria that convert proteins and urea into ammonia?
Decomposers
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Other cards in this set

Card 2

Front

How does carbon monoxide damage the body?

Back

Reduces the body's ability to carry oxygen

Card 3

Front

What is a long term affect of alcohol use?

Back

Preview of the front of card 3

Card 4

Front

What effect does a depressant have on the heart rate?

Back

Preview of the front of card 4

Card 5

Front

What is a carcinogen?

Back

Preview of the front of card 5
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