The function of coenzyme A in the citric acid cycle is most like
A) a hamster in its exercise wheel, running quickly but not getting anywhere.
B) a limousine driver dropping off a couple at the school prom.
C) throwing a baited hook into a lake and catching a fish.
D) a recycling company, collecting paper and using it to manufacture new products.
E) a kid jumping up and down on a trampoline.
Answer: B) a limousine driver dropping off a couple at the school prom.
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A round bacterial cell is called ________
a. columnar b. bacillus c. coccus d. cuboidal e. spirillum
Parenchyma, collenchyma, and sclerenchyma are classified as:
a. dermal tissues. b. vascular tissues. c. ground tissues. d. primary tissues. e. secondary tissues.
A student is designing an experiment to show the effects of the movement of water across a selectively permeable membrane. He places a highly concentrated saltwater solution into a bag that is permeable only to water
He then submerges the bag into a beaker of pure water. Which one of the following can be expected? A) The net flow of water will be from the bag to the surrounding water. B) The pH of the contents of the bag will increase over time. C) The volume of the bag will decrease over time. D) The net flow of water will be from the beaker into the bag, causing the contents of the bag to increase in volume. E) In this situation, the flow of water into the bag will never equal the flow of water out of the bag.
Cells with one of each kind of chromosomes are described by the term
A) polyploid B) diploid C) triploid D) haploid