Glucose is transported into a cell by ____

a. active transport
b. exocytosis
c. facilitated diffusion
d. phagocytosis
e. osmosis


ANSWER: c

Biology & Microbiology

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Photosynthesis spread through eukaryotes by repeated endosymbiosis involving eukaryotic algae

A. true B. false

Biology & Microbiology

When one plant is shaded by another, why is the ratio of far-red to red light increased compared to an unshaded plant?  

A.  Phytochrome in the taller plant absorbs most of the red light. B.  Auxin absorbs mostly far-red light. C.  As light passes through the leaves of the taller plant, most of the red light is absorbed by chlorophyll. D.  Far-red light mostly reflects off the surface of the soil while red light is mostly absorbed. E.  Shade is enriched in far-red wavelengths of light.

Biology & Microbiology

Which of the following is required to detach myosin from actin?  

A.  calcium B.  ATP C.  phosphate D.  troponin E.  ADP

Biology & Microbiology

The brief reversal of the electric gradient

across a neuron’s plasma membrane is called a(an)

a. action potential. b. resting potential. c. kinetic potential. d. threshold potential. e. energy potential.

Biology & Microbiology