Energy/Matter
Pyramids/Food chains
Cycles
Photosynthesis
Misc.
100
What is the name for an organisms feeding level?
Trophic Level
100
Name the three types of ecological pyramids.
Pyramid of Energy Pyramid of Biomass Pyramid of Numbers
100
Name three cycles we have studied
Nitrogen, Sulfur, phosphorus, oxygen, carbon or hydrologic
100
What does ATP stand for?
Adenosine Triphosphate
100
What does LEO and GER stand for?
LEO: loss electrons oxidization GER: gain electrons reductions
200
What is an autotroph?
An organism that can produce their own food (producer) Ex. plants
200
Are all ecological pyramids upright? And why?
No, for example trees can support many small organisms such as insects. Because trees are producers they remain on the bottom of the pyramid
200
What part of the biosphere does phosphorus NOT pass through?
Atmosphere
200
What are enzymes?
Biological catalysts that reduce the amount of energy needed for the retain of breaking down objects.
200
What is a granum?
A stack of thylakoids
300
What does "ecology" refer to?
The observations of many areas of science. A combination of nature, culture and technology.
300
Draw an example of a pyramid of energy.
http://www.ib.bioninja.com.au/_Media/pyramid_of_energy_med-2.jpeg
300
Sulfur cycles through which three components of the biosphere?
Atmosphere, lithosphere and hydrosphere
300
Explain the terms endothermic and exothermic
Endothermic: Consumes energy Exothermic: Gives of energy
300
What is a product of chemosynthesis?
Carbohydrates
400
What are the two laws of thermodynamics?
1. Energy cannot be created nor destroyed 2. Energy conversions are never 100% efficient
400
Food chains usually have between __ and __ trophic levels
3 and 6
400
What forms of nitrogen can plants use?
Nitrate, sometimes ammonium, molecular nitrogen and nitrite
400
Where do light and dark reactions occur?
light reactions: in the chloroplast dark reactions: in cytoplasm
400
Define anabolic and catabolic.
Anabolic: builds larger molecules from smaller ones Catabolic: breaks down larger molecules into smaller ones
500
What is the desired end product of Chemosynthesis?
Organisms split hydrogen sulfide molecules from the vents and capture the energy stored within.
500
How many litres of water does it take to produce a half kilogram of ground beef?
43,000 litres
500
Explain nitrogen fixation is.
When nitrogen is converted into ammonium.
500
Why do leaves appear green?
Because all the colours in the colour spectrum are absorbed, but green is reflected.
500
Which chemicals are required for dark reactions?
ATP and NADPH
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