UCSD BILD 2 - Practice Midterm Questions (3 pages)

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Practice Midterm Questions



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Practice Midterm Questions

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Pages:
3
School:
University of California, San Diego
Course:
Bild 2 - Multicellular Life
Multicellular Life Documents

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1 In a system with double circulation A blood is usually pumped at two separate locations as it circulates through the body B there is a countercurrent exchange in the gills C hemolymph circulates both through a pumping blood vessel and through body sinuses D blood is pumped to the gas exchange organ and returning blood is then pumped through systemic vessels E there are always two ventricles and often two atria 2 In the human digestive system which is the site of water and ion reabsorption A the stomach B duodenum C liver D large intestine E gall bladder 3 Certain nutrients are considered essential in the diets of certain animals because A only those animals use the nutrients B they are subunits of important polymers C they cannot be manufactured by the organism D they are necessary for energy generation E only some foods contain them 4 In the blood most of the oxygen that will be used in cellular respiration is carried from the lungs to the body tissues A as bicarbonate ions B combined with hemoglobin C by the trachea D by water E dissolved in blood plasma 5 After ingestion the first type of macromolecule to be worked on by enzymes in the human digestive system is A protein B carbohydrate C fat D nucleic acid E glucose 6 Consider the energy budgets for a human an elephant a penguin a mouse and a python The would have the highest total annual energy expenditure and the would have the highest energy expenditure per unit mass A elephant mouse B elephant human C human penguin D mouse python E penguin mouse 7 What is the common functional significance of the extended number of cells making up such seemingly different human structures as the lining of the air sacs in the lungs and the wavy lining of the intestine A increased oxygen demand from their metabolic activity B increased exchange surface provided by their membranes C greater numbers of cell organelles contained within their cytoplasm D greater protection due to increased cellular mass E lowered basal metabolic



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