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melisa1 [442]
4 years ago
9

Examine how photosynthetic prokaryotic cells changed the atmosphere of early Earth

Biology
1 answer:
romanna [79]4 years ago
4 0
They converted carbon dioxide to oxygen. The increased oxygen levels allowed for cellular respiration to occur instead of only glycolysis. The atmosphere became thinner, decreasing temperatures of the planet as well. 
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Describe the two main stages of photosynthesis in general terms
zhenek [66]
There are 2 stages in photosynthesis
light stage and dark stage
light stage takes placein the grana because there's presence of chlorophyll. 2 reactions take place here.
1. photolysis of water where water molecules are split into hydrogen ions and oxygen gas in presence of chlorophyll and oxygen gas. the oxygen gas is released into the atmosphere but hydrogen ions are used in dark stage.
2. formation of adenosine triphosphate which is formed by combination of adenosine diphosphate and an inorganic phosphate in presence of light. this adenosine triphosphate is also used in dark stage
dark stage is a light independent stage which takes place in the stroma. energy is provided by adenosine triphosphate formed in the light stage. this stage involves tge combination of carbon(iv)oxide and hydrogen ions to form a simple carbohydrate and a water molecule. this process is known as carbon(iv)oxide fixation which is the reduction of carbon(iv)oxideby hydrogen ions using adenosine triphosphate energy to form a simple carbohydrate.
This simple carbohydrate is changed to glucose for use in the plant or to starch for storage
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Answer:

Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP. Overall, this three-stage process involves glucose and oxygen reacting to form carbon dioxide and water.

Explanation:

Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form ATP molecules. Overall, this three-stage process involves glucose and oxygen reacting to the formation of carbon dioxide and water.

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<span>Marine mammals can be classified as animal that lives partially or wholly on coastal waters or oceans from survival while fish can be classified as a cold blooded gill bearing, egg producing species. However, whales survive by the development of echolacation, modified lungs, thick layers of blubber and lager arteries  among other things to ensure their prosperity and survival.</span>

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She should write down her average performance on her test when she sleeps, and when she doesn't.


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