Name: Period: Date: Photosynthesis Practice Questions
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1 Name: Date: Photosynthesis Practice Questions 1. The diagram below represents events associated with a biochemical process that occurs in some organisms. 2. The diagram below represents the setup for an experiment. Two black paper discs are opposite each other on both sides of each of two leaves. Which statement concerning this process is correct? A) The process represented is respiration and the primary source of energy for the process is the Sun. B) The process represented is photosynthesis and the primary source of energy for the process is the Sun. C) This process converts energy in organic compounds into solar energy which is released into the atmosphere. D) This process uses solar energy to convert oxygen into carbon dioxide. What would this experimental setup most likely show? A) glucose is necessary for photosynthesis B) protein is a product of photosynthesis C) light is necessary for photosynthesis D) carbon dioxide is a product of photosynthesis 3. The diagram below represents some chemical events that take place in one type of autotrophic nutrition. The arrows labeled A best represent A) carbon dioxide B) glucose C) energy D) lactic acid 4. Which process is represented by the arrow in the diagram below? A) fermentation B) photosynthesis C) oxidation of glucose D) hydrolysis of nutrients
2 5. A small piece of black paper was folded in half and used to cover part of the top and bottom portions of a leaf on a living geranium plant. After the plant was kept in sunlight for several days, the paper was removed. The leaf was then boiled in alcohol to remove the chlorophyll and placed in Lugol's iodine solution. Only the part of the leaf that had not been covered turned blue black. This investigation was most likely testing the hypothesis that A) light is necessary for photosynthesis to occur B) alcohol plus chlorophyll forms Lugol's solution C) green plants use carbon dioxide in photosynthesis D) plants use alcohol in the production of chlorophyll 6. If the leaves of a geranium plant receive an adequate supply of raw materials, which graph shows how the rate of photosynthesis is related to increasing light intensity received by the plant? A) B) 8. Which process is an outcome of photosynthesis? A) Complex molecules are broken down to form simple molecules. B) Water is absorbed into the root hairs. C) Light energy is converted into chemical energy. D) Water is transported through vascular tissue. 9. Which type of energy transformation occurs in photosynthesis? A) mechanical to electrical B) chemical to mechanical C) light to chemical D) heat to electrical 10. The graph below represents the absorption spectrum of chlorophyll. C) D) 7. The graph below shows the effect of a factor on the photosynthetic rate of the green marine algae Enteromorpha linza. Which is most likely represented by factor X? The graph indicates that the energy used in photosynthesis is most likely obtained from which regions of the spectrum? A) yellow and orange red B) violet blue and green C) orange red and violet blue D) green and yellow A) light intensity B) water concentration C) competition level D) substratum type
3 11. The diagram below represents a change in guard cells that open and close pores in a plant. 14. Which process uses energy to combine inorganic molecules to synthesize organic molecules? A) respiration B) digestion C) photosynthesis D) decomposition 15. The diagram below represents part of a life process in a leaf chloroplast. This change directly helps to A) increase heterotrophic nutrition B) absorb minerals C) regulate water loss D) reduce seed production 12. The diagram below illustrates the movement of materials involved in a process that is vital for the energy needs of organisms. If the process illustrated in the diagram is interrupted by a chemical at point X, there would be an immediate effect on the release of A) chlorophyll B) nitrogen C) carbon dioxide D) oxygen The process illustrated occurs within A) chloroplasts B) mitochondria C) ribosomes D) vacuoles 13. The equation below represents a summary of a biological process. carbon dioxide + water glucose + water + oxygen This process is completed in A) mitochondria B) ribosomes C) cell membranes D) chloroplasts
4 Base your answers to questions 16 through 18 on the diagram of a chloroplast below. 16. The process of photolysis in the grana occurs at letter A) E B) G C) C D) D 17. The dark reactions in the stroma are represented by letter A) A B) F C) C D) D 18. Carbon dioxide is represented by letter A) E B) B C) C D) F 19. One immediate cause of a decrease in the rate of photosynthesis is a reduction in the availability of A) carbon dioxide B) carbon monoxide C) hydrogen D) nitrogen
5 20. Base your answer to the following question on the diagram below and on your knowledge of biology. The diagram represents some processes occurring in the leaf of a plant. Which equation illustrates a process of nutrition carried out within the leaf? A) B + D A + C B) A + C A + B + D C) B + C A + D D) A + B + D B + C
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