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| Textbook Quiz 01 |
1. The totality of a cell's DNA is referred to as its A. nucleus B. genome C. genetic load D. cytosome |
2. The primary function of ribosomes is A. protein synthesis B. photosynthesis C. respiration D. membrane transport |
3. Plant cells are unlike animal cells because A. they lack an endoplasmic reticulum B. they possess Golgi bodies C. lack spindle fibers D. they possess plasmodesmata |
4. Which of the following molecules contains protein sequence information A. tRNA B. mRNA C. rRNA D. psRNA |
5. The function of the Golgi complex is to A. modify proteins after synthesis B. concentrate proteins C. package proteins D. all of the above |
6. Chloroplasts are endosymbionts derived from ancestral A. Chromista B. Cyanobacteria C. Spirochaetae D. Proteobacteria |
7. Photophosphorylation includes A. photolysis B. ATP production C. light harvesting D. all of the above |
8. Electrons excited by light in photosystems A. pass excitation by resonance transfer B. pass excitation to the special pair C. are not transfered bewtween chlorophyll molecules D. all of the above |
9. The source and sink for electrons are A. ferredoxin and plastocyanin B. oxygen and ADP C. water and NADP D. none of the above |
10. ATP production during photosynthesis occurs A. in the stroma B. in the thylakoid lumen C. on granal lamellae D. on the cristae |
11. A difference between C3 and C4 pathays is A. the carbon fixing enzyme B. bundle sheath cells C. products of carbon fixation D. all of the above |
12. Photorespiration produces A. additional ATP B. a 2-C and a 3-C molecule C. two 3-C molecules D. a 4-C molecule |
13. RubisCO binds carbon dioxide ________ times more tightly than oxygen A. 5 B. 10 C. 20 D. 700 |
14. In C4 plants, rubisCO receives carbon dioxide from A. the atmosphere B. oxaloacetate C. malate D. none of the above |
15. A benefit of C4 photsynthetic pathways is A. carbon fixation at night B. the production of pyruvate C. different, more efficient rubisCO D. all of the above |
16. True plants are different from all other autotrophs by having A. a multicellular, diploid embryo B. chloroplasts C. gametophyte and sporophyte generations in their life history D. swimming sperm |
17. Charophytes are not considered true plants because A. they lack multicellular reproductive structures B. the diploid zygote undergoes meiosis to produce haploid spores C. they lack a swimming spore D. antheridia and archegonia occur on the same branch |
18. The earliest true plants belong to the phylum A. Chlorophyta B. Bryophyta C. Lycophyta D. Monilophyta |
19. True plants have A. chlorophylls a and d B. chlorophylls a and b C. floridean starch D. phycobilins |
20. The ancestors of true plants include the A. Archaeplastida B. Streptophyta C. Zignematophyceae D. all of the above |
21. Tropical seasonal forests and savannas occur where temperature and precipitation are A. 10 degrees C and 200 cm B. 20 degrees C and 200 cm C. 20 degrees C and less than 100 cm D. 20 degrees C and more than 300 cm |
22. Ecosystems that most closely match the neutral theory definition are A. deserts B. grasslands C. newly formed volcanic islands D. none of the above |
23. A fundamental niche A. is reduced by competition B. may be occupied by multiple species C. is the entire space that can successfully be occupied D. all of the above |
24. Resilience in the dynamic ecosystem model is represented by A. the number of alternate stable states B. the depth of the basin C. the slope of the basin sides D. height of threshold |
25. Poikilothermic ecosystems A. can be supported by fewer primary producers B. have a higher predator to prey ratio than endothermic ecosystems C. high numbers of cold-blooded organisms D. all of the above |
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