1. Carbohydrates, oxygen, carbon dioxide, water, heat and light are all participants in the processes of respiration...

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Biology

1. Carbohydrates, oxygen, carbon dioxide, water, heat and lightare all participants in the
processes of respiration and photosynthesis. Write an equation toshow the substrates
and products of each process.

2. Photorespiration occurs in illuminated green leaves. Describephotorespiration in broad
terms, why it only happens in the light, and what cost it imposeson C3 plants.

3.Rising atmospheric CO2 levels are predicted to favour particularphotosynthetic types
(recall C3, C4 & CAM photosynthesis) relative to others. Plantsof which type are likely to
benefit from rising CO2 levels, and why?

4.Define the concept of plant ecological strategy

5. What do the C, S and R stand for in Grimes triangular C-S-Recological strategy scheme?
What traits might characterise a species in the \"S\" corner of thescheme?

6. List three key ecological advantages of seeds.

Answer & Explanation Solved by verified expert

3.8 Ratings (640 Votes)

1 Aerobic respiration Aerobic respiration requires oxygen It happens in cells when glucose reacts with oxygen Here are the word and symbol higher only equations glucose oxygen carbon dioxide water energy C6H12O6 6O2 6CO2 6H2O energy Energy is shown in brackets in each equation because it is not a chemical substance Anaerobic respiration Anaerobic respiration does not need oxygen It happens when there is not enough oxygen for aerobic respiration Here is the word equation glucose lactic acid energy Much less energy is released by anaerobic respiration than by aerobic respiration Steps Involved The first step involves glycolysis Glycolysis takes place in the cells cytoplasm and is an anaerobic process that does not require oxygen Glucose is broken down into two molecules of pyruvate in a 10step process yielding 2 ATPs The next step involves the entry of pyruvate into the mitochondria that leads to the production of two molecules of acetylcoenzyme A and 2 molecules of CO2 The third step involves the Citric Acid Cycle CAC This is a 9step reaction that takes place within the mitochondria The reactions yield 2 ATPs and 4 CO2 molecules The last step involves the Electron Transport System or cytochrome system that takes place with the help of enzymes that are located in the inner mitochondrial membrane This step yields the maximum number of ATPs that is 32 ATP molecules which makes the total energy produced to 36 ATPs These complex reactions lead to the production of 36 ATPs by utilizing one glucose molecule and six oxygen See Answer

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