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In both lecture and lab, the significance of water (H2O), molecular oxygen (O2), and carbon dioxide (CO2) has been emphasized with regard to their energy content or participation in metabolic oxidation and reduction reactions. This lab has demonstrated that green leaf tissue shows both (A) photosynthetic light reactions and carbon fixation and (B) aerobic respiratory activities.
Describe how an increase in the carbon dioxide levels in the blood and interstitial fluid affects the heart, blood vessels, hemoglobin dissociation curve, and the respiratory system.
In a hypothetical population of sawflies, 20 percent of the population ishomozygous for allele A and 45 percent is homozygous for allele.
Male songbirds sing in spring because increasing daylength at this time stimulates testosterone production which spurs growth of song control circuits in the brains of male songbirds. Choose the best level of causation addressed by this explanatio..
Mexican hairless dogs are heterozygous, carrying a single copy of the dominant lethal allele. In a given population, the Hh genotypic frequency is 60 percent and the frequency of each homozygote is 20 percent.
A calorie is the amount of heat required to raise the temp of one gram of water by 1°C (1 cal = 4 J). A marine iguana from the Galapagos Islands weighs about two kg.
What is the maximum theoretical heart rate based on this information? Cardiac muscle cells are capable of grade.
What factors establish the choice of a paper strip containing bacterial endospores or a sealed ampule containing an endospore suspension for testing heat-sterilization equipment.
Describe what is occuring at each of the stages of transcription(1,2,3). How does each stage move the process forward.
Concerns surrounding both dehydration and over hydration. Focus on water, sodium and potassium. How reliable is thirst as a guiding factor in fluid intake?
Estimate how many photons of light are minimally required to build one glucose molecule in photosynthesis and describe your answer
Oops! You were cleaning out the aquariums in the biology lab and you accidentally placed the saltwater fish in the freshwater tank. What will happen to the cells of these fish?why proper hydration important for multicellular organisms.
Assume you have an animal cell in a culture and you add Carbon fourteen specifically labled glucose to the culture so that you can track the movement of carbon within the cell.
If a transferrin receptor has a cross-sectional area of 50 Angstroms X 100 angstroms (5x10nm), and how many receptors could be accomodated in a 100nm clathrin-coated vesicle assume that only 50% of surface area can be occupied by proteins.
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