Examine the electron micrograph of the mitochondrion on the right.
(a) What portions of aerobic respiration occur in region a?
(b) What substance is produced as hydrogen ions cross from the space between the inner and outer membranes into region a?
(c) What portion of cellular respiration takes place in the cytoplasm outside of this cell?
(a) What portions of aerobic respiration occur in region a? Citric Acid (Kreb’s) Cycle and the ETC
(b) What substance is produced as hydrogen ions cross from the space between the inner and outer membranes into region a? Adenosine Triphosphate
(c) What portion of cellular respiration takes place in the cytoplasm outside of this cell? Glycolysis occurs in the cell cytoplasm
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You have entered a 5K race. As you finish the last 50 yards you are breathing harder than at the start of the race and sweating profusely. This is an example of the _______________law of thermodynamics because ______ is increasing
A. first; entropy B. second; entropy C. first; body temperature D. second; body temperature E. None of these choices are correct; overall energy levels have not changed.
The constant region of an antibody molecule is
A) the binding site for antigens. B) part of the heavy chains only. C) similar in all antibody molecules. D) the binding site for two antigens.
. A research strain of mice has a mutation that causes voltage-gated sodium channels to take longer to return to the active state after a spike. What is the likely consequence for transduction of sensory stimuli?
A. There will be no effect on sensory perception, because sensory information relies on stimulus-gated ion channels and not voltage-gated ion channels. B. Sensory information will be incorrectly perceived as high intensity stimuli, due to the increased frequency of action potentials. C. The mutation will interfere with the ability of stimuli to create receptor potentials, and thus the neuron will fire with slow, broad action potentials, giving the animal enhanced sensory perception. D. Due to a longer refractory period, the neuron will be unable to conduct high frequency action potentials, and thus will not effectively transmit information about strong stimuli. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about action potentials? What other information is related to the question? Choose Answer Given what you now know, what information 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?
Which of the following plant cells has a companion cell?
a. tracheids b. vessel elements c. sieve elements d. sclereids e. fibers