STRAIGHTERLINE BIO 101 FINAL EXAM QUESTIONS AND ANSWERS

STRAIGHTERLINE BIO 101 FINAL EXAM QUESTIONS AND ANSWERS the calvin cycle reactions are dependent upon a supply of - Answer- carbon dioxide, NADPH, and ATP which cofactor is involved in the Calvin cycle reactions? - Answer- NADP+ segments of DNA that are not part of the gene are called - Answer- introns which of the following is not true of ribosomes - Answer- they bind only one type of amino acid which part of an operon is incorrectly matched with its function? - Answer- regulator-- binds to the repressor protein cells of the ground tissue system are called - Answer- parenchyma, collenchyma, and sclerenchyma cells which of the following is not true about the cohesion-tension model of water transport? - Answer- water is transported in the phloem the protective sheath that first surrounds the shoot is called the - Answer- coleoptile which of the following plant hormones prevents senescence and can initiate leaf growth? - Answer- cytokinin when you pick a bouquet of anther-less flowers, you have picked - Answer- female gametophytes retained within the body of sporophytes which of the following is not a characteristic of a somatic embryo? - Answer- these are genetically quite diverse phylogeny refers to the - Answer- evolutionary history of a species which type of organism will form endospores when faced with unfavorable environmental conditions? - Answer- bacteria bacterial cells pick up free pieces of DNA from the medium pieces that were released from dead bacteria in a process called - Answer- transformation what feature enables the archaea to survive in harsh environments? - Answer- their plasma membranes and cell walls the archaea include all of the following except - Answer- lichens biological evolution differs from chemical evolution in that biological evolution would have been possible only after the development of - Answer- a membrane the central dogma of genetics states that DNA directs protein synthesis and that information flows from - Answer- DNA-RNA-protein although microbes are often equated with pathogens, not all are pathogenic and some help humans maintain their health. Which of the following are synthesized by bacteria that live in the human intestine? - Answer- vitamins K and B12 a member of the green algae is - Answer- chlamydomonas at one time, biologists thought that fungi were merely forms of plants that had lost their chlorophyll and had returned to saprotrophy to gain food. Why is this no longer considered a solid theory? - Answer- fungal cell walls contain chitin rather than cellulose an example of a colonial green alga is - Answer- volvox a unicellular alga that has both plant-like photosynthesis and animal-like motility is a(n) - Answer- dinoflagellate Crustose, fruticose, and foliose obtain their nutrients from photosynthetic cells contained within their middle layer. These are varieties of - Answer- lichens spirogyra practice a type of sexual exchange called - Answer- conjugation the function of endosperm is to - Answer- provide nutrients to the embryo the site of formation of pollen grains is in the - Answer- stamen seeds contain all of the following except - Answer- a pollen grain which of the following statements is not true about alternation of generations life cycle? - Answer- the sporophyte generation produces spores by mitosis in structures called sporangia