Which statement is true about the type of light used by plants to make sugar during photosynthesis?
A) Its wavelength is similar to X rays.
B) Its wavelength is similar to radio waves.
C) It comes from within the visible portion of the electromagnetic spectrum.
D) It is infrared.
E) It is very high energy with long wavelengths.
C) It comes from within the visible portion of the electromagnetic spectrum.
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The sodium leak channels in photoreceptors are cyclic GMP-gated channels. What must occur during activation of photoreceptor cells by light?
A. Cyclic GMP levels are reduced. B. Cyclic GMP levels are increased. C. Cyclic GMP is exchanged for cyclic AMP. D. Cyclic GMP is exchanged for GTP.
Define the term calorie, as is scientifically defined
What will be an ideal response?
Which of the following is NOT a response to low
temperature that increases the chance for survival? a. hypothermia b. shivering c. production of brown fat d. pilomotor response e. increased metabolism
Dendrites are slender extensions of the cell body that carry information away from the cell body of the neuron.
a. true b. false