22. During the Calvin-Benson cycle, in the red Columbine plant, high-energy electrons from NADPH are




transferred into a newly made 3-carbon compound. Eventually these electrons will end up as part of




glucose molecules. What was the original source of these electrons in photosynthesis?





A. NADP+ B. ATP C. oxygen D. water E. carbon dioxide








Name: ______________________ ID: A












____ 23. Which color of light has the least important role in photosynthesis?




A. red B. green C. blue D. orange E. indigo




____ 24. Roots function in all of the following except




A. storage of food. B. production of food. C. anchorage and support of the plant. D. absorption




of water. E. absorption of minerals.




____ 25. The endodermis of a root




A. regulates the transport of water and minerals into the vascular system. B. produces root hairs for




the absorption of water and minerals. C. produces lateral roots in woody dicotyledons. D. transports




starch to parenchyma cells for storage. E. produces starch in the roots of dicotyledons.




____ 26. Which of the following is true regarding primary growth in a plant?




A. Primary growth increases the height of a plant. B. Primary growth results in woody tissue.




C. Primary growth arises from apical meristems. D. All the above are true. E. Only a and c are true.




____ 27. Which of the following statements regarding leaf structure and function is not true?




A. Most photosynthesis takes place in the palisade mesophyll. B. Most stomata are usually found on




the upper epidermis rather than the lower. C. The palisade mesophyll is more densely packed than the




spongy mesophyll. D. A waxy cuticle covers the epidermis of many leaves. E. The epidermis of




many leaves has associated trichomes.




____ 28. Which of the following is mismatched?




A. netted veination – dicotyledons B. vascular bundles distributed throughout the stem –




monocotyledons C. one cotyledon – monocotyledons D. floral parts in multiples of four or five –




dicotyledons E. true secondary growth – monocotyledons




____ 29. Which of the following dicotyledon root tissues/cells are in order from the outside of the root to the








A. epidermis, cortex, endodermis, pericycle, vascular tissue B. epidermis, cortex, pericycle,




endodermis, vascular tissue C. epidermis, cortex, pericycle, vascular tissue, endodermis D. epidermis,




cortex, endodermis, vascular tissue, pericycle E. epidermis, pericycle, cortex, endodermis, vascular








____ 30. The ancestor to all plants is believed to be




A. a green alga. B. a red alga. C. a brown alga, like kelp. D. a diatom. E. a sea grass.




____ 31. The tip of the stem (the shoot tip) contains the




A. apical meristem. B. lateral meristem. C. intercalary meristem D. lateral buds. E. endodermis.




____ 32. This type of tissue provides the primary support and strength in the shoot system.




A. dermal tissue B. epidermal tissue C. cortical tissue D. parenchyma E. vascular tissue




____ 33. Following fertilization, an ovary will develop into ____________, whereas an ovule will become








A. a. a fruit; a seed B. an embryo; a fruit C. a seed; an embryo D. a female gametophyte; a seed




E. a fruit; a female gametophyte




____ 34. Double fertilization occurs when




A. one sperm unites with an egg and another sperm unites with the central cell of the female




gametophyte. B. two sperm unite with one egg. C. two sperm unite with the central cell. D. one




sperm unites with the egg and another sperm unites with the male gametophyte. E. one sperm unites




with the egg and another sperm unites with a pollen grain.






Name: ______________________ ID: A












____ 35. What part of a plant actually feeds the majority of people on earth?




A. root B. stem C. leaf D. endosperm E. meristem




____ 36. The period following dormancy of a seed is called




A. germination. B. abscission. C. guttation. D. scarification. E. desiccation.




____ 37. Which of the plant growth regulator(s) is actually a gas?




A. phytochrome B. ethylene C. abscisic acid D. cytokinins E. auxins




____ 38. This group of plant growth regulators are typically produced in the apical meristems of shoots, diffusing




downward to the roots.




A. gibberellins B. ethylene C. abscisic acid D. phytochrome E. auxins




____ 39. Water moves up a plant via




A. capillaries. B. phloem. C. xylem. D. stomates. E. panicles.




____ 40. What structure prevents water from moving between cells of the endodermis of the plant root?




A. Casparian strip B. Okazaki fragments C. sclerids D. collenchyma E. sclerenchyma




____ 41. Plants lose water primarily




A. by passing it out of the stomata. B. by evaporation from the surface of the epidermis. C. by




evaporation from the cuticle. D. by loss to the phloem. E. by translocation.




____ 42. What type of chemical bond allows for the unique characteristics of water (cohesion, adhesion, and




capillary action)?




A. ionic bonds B. covalent bonds C. hydrogen bonds D. oxide bonds E. James Bond














Match the following trait with the correct adaptive advantage.




A. increases the chances of pollination




B. protection from desiccation




C. decreases predation




D. increases gas exchange




E. allows movement of nutrients and water throughout plant




F. increases chance of wide dispersal of offspring




____ 43. Vascular systems




____ 44. Flowers




____ 45. Seeds and fruits




____ 46. Cuticles



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