Why is surface area to volume ratio important
for all cells?
a. a cell must be small enough to absorb small
molecules and atoms
b. if a cell has too small a surface area, the
surface to volume ratio will be too large
c. if a cell has too large a surface area to
volume ratio, the plasma membrane is not
sufficient to deal with the increased amount
of cytoplasm
d. surface area to volume ratios are only
important for small cells, like bacteria
e. more than one of these is correct
C
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What is one way in which plant development differs from animal development?
A. Plants can develop only from somatic cells B. Plants lack morphogens C. Cell migration occurs in plants
Which of the following relationships is FALSE?
A) Ribosomes-site of protein synthesis B) Cell wall-support and protection C) Mitochondria-formation of ATP D) Chloroplasts-chief site of lipid synthesis E) Nucleus-genetic information
Most of the nitrogen in the environment is in the form of nitrogen gas, which is the form used by most organisms
Indicate whether the statement is true or false
In the RNA sequence CAAUGACCAG, what will be the first amino acid incorporated?
A. methionine B. glutamine C. valine D. alanine E. glycine