1 The stored chemical energy in foods is released for cellular use through 2 Photosynthesis and cellular respiration are both a series of chemical processes, catalyzed by a large number of 3 lipids. enzymes. phosopholipids. inorganic phosphates. The main energy "currency" molecule in the cells of living organisms is 4 photosynthesis. the alvin cycle. the light reactions. cellular respiration. TP. water. oxygen. glucose. What metabolic pathway supplies your body with the energy it needs to change P back into TP? hydrolysis photosynthesis cellular respiration dehydration synthesis 11/10/2014 11:13:17 M Page 1
5 The contraction of a muscle is an example of 6 ellular respiration occurs primarily in which cellular organelle? 7 oxygen NPH carbon dioxide adenosine monophosphate Which of the following statements about cellular respiration is FLSE? 9 nucleus lysosome mitochondrion endoplasmic reticulum Which of the following is required in order for aerobic cellular respiration to occur? 8 kinetic work. chemical work. transport work. mechanical work. ellular respiration occurs in some unicellular organisms. The reactions of cellular respiration occur in mitochondria. ellular respiration uses water and carbon dioxide to produce oxygen and sugars. ellular respiration converts chemical energy stored in food into chemical energy stored in TP. When you sprint to catch the bus, fermentation in your muscle cells produces alcohol. lactic acid. carbon dioxide. adenosine diphosphate. 11/10/2014 11:13:17 M Page 2
10 s eletrons are passed through the electron transport chain, the energy given off pumps hydrogen ions (H+) across the inner membrane of the mitochondrion. The build-up of H+ ions in the intermembrane space is important because it 11 What seasonal changes act as the "trigger" for the shut down of photosynthesis in deciduous trees? 12 TP is one of the final products of photosynthesis. Photosynthesis stores energy in the bonds of carbon dioxide. ll organisms on the planet are ultimately dependent upon photosynthesis. Photosynthesis is important because it removes excess carbon dioxide from the atmosphere. Which of the following is part of the light reactions? 14 less light less water less carbon dioxide both and Which of the following statements is TRUE about photosynthesis? 13 produces water. stores energy in glucose. powers the production of TP. releases chemical energy from glucose. TP is formed oxygen is produced NP+ gains electrons all of the above The alvin cycle occurs because special enzymes catalyze the reactions by lowering the amount of activation energy that is required. Where are these enzymes found in a chloroplast? in the stroma in the granum in the thylakoid membranes between the two outer membranes 11/10/2014 11:13:17 M Page 3
15 Which part of the chloroplast would see a drop in ph (more acidic) when light is shined on a plant? 16 plant is an example of 17 a producer. an autotroph. a heterotroph. both and Which type of organism supports all the other trophic levels in a food web? 18 the stroma the surface of the grana inside the thylakoid membranes the area between the two outer membranes producer carnivore consumer both and mouse eating a grasshopper that ate a flower is an example of a primary consumer. tertiary consumer. secondary consumer. quaternary consumer. 11/10/2014 11:13:17 M Page 4
19 How can humans impact the carbon cycle? 20 by breathing by using fossil fuels by cutting down forests all of the above Why do top-level consumers such as lions and killer whales have no natural predators? They store a large amount of energy. They are too quick to be caught by a predator. The amount of biomass they create is too great and chokes out other trophic levels. The amount of energy that they store is too small to support another trophic level. 11/10/2014 11:13:17 M Page 5
Page 6 nswer Key : Question: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 11/10/2014 11:13:17 M nswer