AP Bio 2.

the approximate molarity of the solution in which the mass of the plant pieces would not change is

0.3 M

which of the following is best observed by using a compound light micrscope?

a eukaryotic cell

which of the following is correct concerning a spherical cell?

as the diameter decreases the surface to volume ratio increases

calls that contain only circular chromosomes are probably which of the following?

bacterial cells

simple diffusion and facilitated diffusion are related in that both

depend on concentration gradient

When a substance moves across the plasma membrane along a concentration gradient at a rate faster than would be expected by simple diffusion alone but without the expenditure of metabolic energy, the process is best described as

facilitated diffusion

a student using alight microscope observes a cell and correctly decided that it is a plant cell because

it has a large central vacuole

if instead of the bag a potato slice were placed in a beaker of distilled water which of the following would be true of the potato slice?

it would gain mass

membranes are components of all the following except a

microtubule

water enters and leaves the plant cells primarily by

osmosis

all of the following are typical components of the plasma membrane of a eukaryotic cell except

pigments

a prokaryotic cell has which of teh following

plasma membrane

which of the following components of the cell membrane is responsible for active transport

protein

prokaryotic and eukaryotic cells generally have which of the following features in common?

ribosomes

which of the following best describes the condition expected afeter 24 hours?

the bag will contain more water than it did in the original condition

which of the following organelles modifies the packages for secretion the materials produced by the ribosomes?

the golgi apparatus

from the initial condidtions and the results described, which of the following is a logical conclusion?

the pores of the bag are larger than the glucose molecules but smaller than the starch molecules

which of the following occurs in the tissue that is placed in 0.6 M sucrose?

the volume of the vacuoles decreases