|Questions and answers with 100% correct
solutions | Graded A+
the calvin cycle reactions are dependent upon a supply of ✔✔carbon dioxide, NADPH, and ATP
which cofactor is involved in the Calvin cycle reactions? ✔✔NADP+
segments of DNA that are not part of the gene are called ✔✔introns
which of the following is not true of ribosomes ✔✔they bind only one type of amino acid
which part of an operon is incorrectly matched with its function? ✔✔regulator--binds to the repressor
protein
cells of the ground tissue system are called ✔✔parenchyma, collenchyma, and sclerenchyma cells
which of the following is not true about the cohesion-tension model of water transport? ✔✔water is
transported in the phloem
the protective sheath that first surrounds the shoot is called the ✔✔coleoptile
which of the following plant hormones prevents senescence and can initiate leaf growth? ✔✔cytokinin
,when you pick a bouquet of anther-less flowers, you have picked ✔✔female gametophytes retained
within the body of sporophytes
which of the following is not a characteristic of a somatic embryo? ✔✔these are genetically quite
diverse
phylogeny refers to the ✔✔evolutionary history of a species
which type of organism will form endospores when faced with unfavorable environmental conditions?
✔✔bacteria
bacterial cells pick up free pieces of DNA from the medium pieces that were released from dead bacteria
in a process called ✔✔transformation
what feature enables the archaea to survive in harsh environments? ✔✔their plasma membranes and
cell walls
the archaea include all of the following except ✔✔lichens
biological evolution differs from chemical evolution in that biological evolution would have been
possible only after the development of ✔✔a membrane
, the central dogma of genetics states that DNA directs protein synthesis and that information flows from
✔✔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? ✔✔vitamins K and B12
a member of the green algae is ✔✔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? ✔✔fungal
cell walls contain chitin rather than cellulose
an example of a colonial green alga is ✔✔volvox
a unicellular alga that has both plant-like photosynthesis and animal-like motility is a(n)
✔✔dinoflagellate
Crustose, fruticose, and foliose obtain their nutrients from photosynthetic cells contained within their
middle layer. These are varieties of ✔✔lichens
spirogyra practice a type of sexual exchange called ✔✔conjugation
the function of endosperm is to ✔✔provide nutrients to the embryo