Explain the reciprocal nature of the net chemical reactions for photosynthesis and respiration.
What will be an ideal response?
Photosynthesis takes the energy of sunlight and combines water and carbon dioxide to produce sugar and oxygen as a waste product. The reactions of respiration take sugar and consume oxygen to break it down into carbon dioxide and water, releasing energy. Thus, the reactants of photosynthesis are the products of respiration, and vice versa.
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A flask containing photosynthetic green algae and a control flask containing water with no algae are both placed under a bank of lights, which are set to cycle between 12 hours of light and 12 hours of dark
The dissolved oxygen concentrations in both flasks are monitored. Predict what the relative dissolved oxygen concentrations will be in the flask with algae compared to the control flask. The dissolved oxygen in the flask with algae will _____. A) always be higher B) always be lower C) be higher in the light, but the same in the dark D) be higher in the light, but lower in the dark E) not be different from the control flask at any time
The cyclic nitrogenous base used in transcription, uracil, is a ________.
A. purine B. porphyrin C. protein D. pyrimidine
The Pacinian corpuscle is used in detecting
a. sound. b. pressure. c. chemicals. d. sight. e. chemical differences.
Which is mismatched?
A. sodium hypochlorite-chlorine B. formalin-formaldehyde C. iodophor-iodine D. chlorhexidine-alcohol E. benzalkoniumchloride-quaternary ammonium compound