a. capture sunlight and absorb CO 2

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1 BIO Exam 1 Name Matching (10 pts) 1. Match each plant part with its function: root c a. capture sunlight and absorb CO 2 for photosynthesis leaves a b. provides support, conducts water and nutrients flower d c. found below ground, anchors plant stem b d. sexual reproduction in angiosperms fruit e e. mature ovule Multiple Choice (2 pts each) 2. Photosynthesis is a. production of a seed within an ovary b. creation of chemical energy from sunlight and CO 2 c. fertilization of the egg with the sperm 3. Tissues a. are a group of cells that form a structural and functional unit b. may be either simple or complex c. both a and b are true d. neither a nor b are true 4. Meristems a. are found at the tips of roots and shoots b. are the site in the plant body where cells divide c. are the site in the plant body where cell differentiation is initiated d. all of the above 5. Reproduction is defined as a. the bursting of the radicle through the seed coat b. production of new organs via cell division and enlargement c. the transfer of genetic information from one generation to the next 6. All of the following are true about sexual reproduction except a. it requires two parents b. it requires more energy c. it yields genetically distinct cells d. it yields to genetically identical cells 7. The gametophyte

2 a. is the haploid plant body b. is the diploid plant body c. gives rise to haploid gametes via mitosis d. both a and c 8. Which of the following is a male floral part a. stigma b. anther c. style d. ovary 9. Gibberellic Acid is a plant hormone that a. inhibits plant growth b. kills plants c. accelerates plant growth 10. Every ovule contains a. two sperm cells b. one sperm cell c. an egg d. pollen grains 11. Pollination can be defined as a. the fertilization of the egg by the sperm b. the ability to develop into a new plant without first mating with another organism c. the division of a parent cell to yield a genetically identical daughter cell d. the transfer of pollen from an anther of one plant to the pistil of another Definitions (2 pts each) 12. Define the following terms: a. meristem site of cell division and where differentiation is initiated b. haploid one set of chromosomes c. diploid two sets of chromosomes d. spore

3 one celled reproductive unit that can develop into a new plant without mating with another organism e. germination bursting of the radicle through the seed coat Complete the following statements 13. The embryo is composed of three parts: the epicotyl contributes to shoot development, the hypocotyl contributes to stem development and the radicle contributes to root development. (4 pts). 14. During embryogenesis the terminal cell develops into the embryo and the basal cell develops into the suspensor. (4 pts) 15. The first step in seed germination is imbibition. (2 pts) 16. After differentiation into the embryo, one or two cotyledons develop. Seeds with one cotyledon are called monocots and seeds with two cotyledons are called dicots. (4 pts) 17. amylase catalyzes the hydrolysis of starch into its component sugar units. (2 pts) Short Answer 18. Plants have three tissue systems, ground, vascular and dermal. What are the functions of these systems. (6 pts) Ground photosynthesis, storage, support Vascular conduct nutrients Dermal covering and protection 19. Explain what happens during double fertilization. (4 pts) One sperm fusing with one egg to produce zygote One sperm fuses with polar nuclei to produce triploid cell that develops into endosperm 20. Plant growth is referred to as being indeterminate. What does this mean? (4 pts)

4 It has no limits, continued growth throughout lifespan. 21. What are the two functions of the suspensor? (4 pts) Anchor the embryo to the endosperm Conductor of nutrients 22. Name two ways in which mitosis and meiosis differ. (4 pts) Mitosis, one division, genetically identical, body cells Meiosis, two divisions, genetically distinct, sex cells 23. The plant life cycle involves the alteration of generations. What is meant by this term? (4 pts) Life cycle has both a haploid and diploid phase 24. A typical seed has three fundamental parts. Name these parts. (3 pts) Seed coat Endosperm embryo 25. What role does water play in barley seed germination, name at least two functions. (4 pts) Softens seed coat, activates seed biochemistry 26. Complete the following chart (4 pts)

5 Monocot (Barley) Dicot (Lettuce) aleurone layer no aleurone layer Location of Starch Reserves endosperm cotyledons Activating Signal Gibberellic Acid phytochrome 27. What is the function of the endosperm? (4 pts) Nutrient source for embryo 28. Explain what happens when GA reaches the aleurone layer. (6 pts) It activates the genes for amylase Bonus (10 pts) 1. Animal growth is determinate meaning that at some point cell division stops and you have an adult organism. There are, however, a few exceptions. Name two types of animal cells that exhibit indeterminate growth. (5 pts) Skin, blood 2. Each pollen grain produces two cells. What is the fate of these two cells (what do they produce/develop into). (5 pts) Two male gametes and a pollen tube