Which of the following statements is not true regarding mesophyll cells?
A. Mesophyll cells at the top of the leaf are
columnar and tightly packed to optimize
photosynthesis.
B. Mesophyll cells close to the stomata are
shaped to maximize air spaces between
cells.
C. Mesophyll cells close to the stomata are
not tightly packed.
D. Mesophyll cells in all locations in the leaf
are tightly packed to optimize photosynthesis.
E. Mesophyll cell position allows for
increased diffusion of CO2 into the leaf.
D
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Embryonic cell cycles allow the rapid division of cells in the early embryo. These mitotic cell cycles are much shorter in length than the mitotic cell cycles of cells in a mature organism. In the embryonic cell cycles, mitosis takes approximately the same amount of time as it does in the cell cycles of mature cells. What do you think is a result of the embryonic cycle?
A. Resulting daughter cells are smaller than the mother cell in the embryonic cell cycles. B. Resulting daughter cells do not contain the same genetic information as the mother cell in the embryonic cell cycles. C. Resulting daughter cells cannot form a mitotic spindle in the embryonic cell cycle. D. Mother cells in the embryonic cell cycle spend the majority of their time in G0. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about the cell cycle? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The power stroke corresponds to which event in muscle contraction?
A. cross-bridge formation. B. sliding of actin with respect to myosin C. cocking of the myosin head D. binding of the myosin head to actin
A karyotype of one of your skin cells would reveal a total of 46 chromosomes. How many of these are maternally inherited autosomes?
a) 23 b) 22 c) 46 d) 24 e) 21
to which kingdom would the yeasts belong
What will be an ideal response?