What statement about the protonema is false? What groups of plants have self-propelled spermatozoids?

Transcription

1 What statement about the protonema is false? a. It is haploid b. It is photosynthetic c. The spermatophyte develops from it d. It is the product of a germinated spore e. It is a chain of cells that forms a stage of a bryophyte life cycle What groups of plants have self-propelled spermatozoids? a. Mosses, lycophytes and gymnosperms b. Mosses, lycophytes and ferns c. Only ferns and gymnosperms d. Only gymnosperms and angiosperms e. Only lycophytes and ferns What is the correct evolutionary sequence (from oldest to youngest) of the following branches of the tree of life in plants? a. Lycophytes, ferns, eudicots, gymnosperms, monocots b. Ferns, lycophytes, gymnosperms, monocots, eudicots c. Ferns, lycophytes, gymnosperms, monocots, eudicots d. Lycophytes, ferns, gymnosperms, monocots, eudicots e. Lycophytes, ferns, gymnosperms, eudicots, monocots The following description applies to one specific cell type. Which one? This cell type is alive at maturity, and its cell walls are stiffened typically in their corners. This cell type is used as support in plant shoots or associated with vascular bundles. a. collenchyma b. sclerenchyma c. meristems d. parenchyma e. chlorenchyma What makes a prune shine after rubbing it on your pants (and before biting into it)? a. sclerenchyma cells b. epidermis cells c. guard cells d. cuticle e. hairs Which of the following is NOT a secondary meristem? a. Vascular cambium b. Ground meristem c. Axillary meristem d. Cork cambium e. Root apical meristem 1

2 What type of dispersal is associated with the following description of a seed? This seed is relatively small (under 0.5 cm in diameter), it is produced by a herb in the forest of the Morningside Ravine and it has an attached body rich in lipids. a. wind dispersal b. ant dispersal c. self dispersal d. internal hitchhiking e. external hitchhiking Which of the following can provide food for the developing embryo? a. Angiosperm b. Exosperm c. Endosperm d. Elaiosperm e. Elaiosome What statement about double fertilization is false? a. It is specific to angiosperms b. One of the two male gametophytic nuclei shuttled from the pollen to the ovule by means of the pollen tube fertilizes the egg cell and the other fertilizes the central cell c. Double fertilization leads to the initiation of the endosperm d. It refers to the parallel union between a haploid sperm nucleus and the haploid egg and the haploid sperm nucleus and the diploid central cell e. All of the above statements are correct In which of the following sexual system is selfing not possible? a. Dioecy b. Monoecy c. Diandry d. Hermaphroditism e. Monandry 2

3 Which of the labeled tissues is secondary phloem? a. 1 b. 2 c. 3 d. 4 e

4 Which two flower pairs are both eudicots? a. b. c. d B 4

5 In the following diagram of flower, correctly label the indicated organs. a: 1: sepal; 2: petal; 3: anther; 4: stoma; 5: style; 6: ovary b. 1: petal; 2: sepal; 3: anther; 4: stigma; 5: style; 6: ovary c. 1: petal; 2: sepal; 3: anther; 4: stoma; 5: style; 6: egg d. 1: sepal; 2: petal; 3: filament; 4: stigma; 5: style; 6: ovary e. 1: petal; 2: sepal; 3: anther; 4: stoma; 5: style; 6: ovary f: 1: sepal; 2: petal; 3: anther; 4: stigma; 5: style; 6: ovary g. 1: petal; 2: sepal; 3: anther; 4: stigma; 5: stoma; 6: ovary 5

6 What is the sexual system of the species in the picture? a. Dioecy b. Monoecy c. Diandry d. Hermaphroditism e. Monoecy or dioecy 6

7 Which pollinator sees in the UV spectrum of light? a. Hummingbirds b. Bats c. Bees d. Butterflies e. Hawkmoths What statement about water transport in roots is false? a. in the apoplastic transport route water travels through cells and pits b. the water transport through cell walls is faster than the one through cells and pits, because there is less resistance to water flow through c. the Casparian strip blocks the water transport through cell walls d. the Casparian strip is located inside the cortex and is part of the endodermis e. the Casparian strip only lets symplastic water pass through Which of the following forces is the most potent in terms of moving up water through a plant s phloem? a. capillary action b. osmosis c. transpiration d. All the above are driving forces are equally strong Which of the following is a micronutrient? a. Iron b. Sulfur c. Nitrogen d. Magnesium e. Hydrogen Which statement about mycorrhiza is false? a. Mycorrhiza is an association between a fungus and a plant b. The fungus fixes atmospheric nitrogen and makes it available to the plant c. Mycorrhiza involves a mutualistic relationship, wherein both partners profit d. Through its mycorrhizal partner, the plant gets a much better access to water e. The fungal partner gains sugar from its partner Which of the following is not an example of a plant defense against herbivory? a. cuticle b. spines c. nicotine d. trichomes e. thorns Which of the following is NOT a reason why submerged aquatic plants often have dissected leaves? a. better access to carbon dioxide b. less resistance to the water current c. fast diffusion of gas d. better access to light 7