Biology Additional Science Quiz Unit 1

  • Cells
  • Plants
  • Diffusion and Osmosis
  • Boimass and food chains
  • Death decay and the carbon cycle
?
What do green plants use to make their own food?
sunlight
1 of 17
What is osmosis?
the diffusion of water from a dilute to a more concentrated solution through a partially permeable membrane
2 of 17
What are the three factors affecting photosynthesis?
Light, Temperature, Carbon Dioxide
3 of 17
What substance is light energy absorbed by in a cell?
Chloropyll
4 of 17
What is the by-product of photosynthesis?
Oxygen
5 of 17
What is magnesium for?
needed for chlorophyll production
6 of 17
What are nitrates for?
producing amino acids which are then used to form proteins
7 of 17
What will happen if a plant is deficient in nitrate ions?
it will get stunted growth
8 of 17
What is the source of energy for most communities of living organisms?
Radiation from the sun
9 of 17
What will happen if a plant is deficient in magnesium ions?
It will get yellow leaves
10 of 17
How can the efficiency of food production be improved?
by decreasing the number of stages in a food chain
11 of 17
What would increase the rate of microorganisms digesting materials?
warmth and oxygen
12 of 17
What is he function of Mitochondria?
Where energy is released in respiration
13 of 17
What is the carbon from the carbon dioxide used for to make up the body of plants?
Fats, Proteins and Carbohydrates
14 of 17
How is the carbon released back into the atmosphere by the microorganisms?
when they respire
15 of 17
When plants and animals die what feeds on their bodies?
microorganisms
16 of 17
How are materials broken down?
They are broken down (digested) by micro-organisms
17 of 17

Other cards in this set

Card 2

Front

What is osmosis?

Back

the diffusion of water from a dilute to a more concentrated solution through a partially permeable membrane

Card 3

Front

What are the three factors affecting photosynthesis?

Back

Preview of the front of card 3

Card 4

Front

What substance is light energy absorbed by in a cell?

Back

Preview of the front of card 4

Card 5

Front

What is the by-product of photosynthesis?

Back

Preview of the front of card 5
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Comments

John Delap

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great!

Cheryl

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 I AGREE WITH JOHN ^^^^THIS IS SO GREAT WELL DONE ITS HAS REALLY HELPED ME AND I KNEW NOTHING ABOUT THESE TOPICS LISTED THANK YOU SO MUCH IT HAS REALLY BOOSTED MY CONFIDENCE :)

Natasha

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It's not so great! Molly, Question 20 is both true and false because plants respire and photosynthesize! So they take it in but they also release it! And, when plants get eaten by animals they take it in and then release it when they respire! Plus, when plants decay the microorganisms digest the carbon and then release it when they respire! DUHH! *diva click*

karisma

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when i did this 2 weeks ago i got 71% after intense revision i got 100% woohoo

missfunkeytee

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thts great lv it 

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