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Energy Use. What is the main original source of energy?

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Presentation on theme: "Energy Use. What is the main original source of energy?"— Presentation transcript:

1 Energy Use

2 What is the main original source of energy?

3 The sun

4 What is this graph showing?

5 Enzymes lower the energy needed by the cell.

6 What is the formula for photosynthesis?

7 6CO 2 + 6H 2 O ---Sunlight---> C 6 H 12 O 6 + 6O 2

8 What organelle does photosynthesis take place in?

9 The chloroplast

10 What gas does photosynthesis need as a reactant?

11 CO2

12 What type of organism is a plant?

13 An autotroph

14 What type of organisms need the cellular respiration process?

15 Any organism that needs to break down food molecules to release stored energy.

16 What biomolecule are enzymes or catalysts?

17 proteins

18 When do plants go through cellular respiration?

19 When they are germinating, before they make leaves for photosynthesis

20 In a human, what is the optimal body temperature by which enzymes will work?

21 98.6 degrees F

22 What two types of energy are required during digestion?

23 Mechanical and chemical

24 What is an example of mechanical digestion?

25 Chewing peristalsis

26 Give and example of how chemicals help speed digestion.

27 Amylase=carbohydrates Lipase=lipids

28

29 What would happen if the enzymes in your body became too hot from a high temperature?

30 They would change shape, hence the active site would be destroyed.

31 How could catalysts be sped up?

32 Increase the levels of enzymes.

33 What are competitive and non-competitive inhibitors?

34 They prevent substrates from contacting the enzyme.

35 What is an induced fit and lock and key model?

36 An enzyme must have its active site fit specifically to the substrate (lock and key). Once it does it puts a firm hold around it (induced fit).

37

38 What other organs help produce enzymes along the digestive tract?

39 The pancreas

40 Where does food get absorbed along the digestive tract?

41 The small intestine

42 Where does the food go once it is absorbed from the small intestine?

43 Into the bloodstream-> to the cells

44 What is required for cellular respiration?

45 C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy

46 What organelle does cellular respiration take place in?

47 The mitochondria

48 Once cellular waste is produced, where does it need to go?

49 Back into the bloodstream then to the kidneys to be filtered out into urine. Into the bloodstream ->to the lungs-> then exhaled

50 Why do we need energy?

51 To grow (mitosis and meiosis) To move Transport substances across cell membranes

52


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