BIOL 1000 Lecture 3: chapter 2 notes
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MOLECULAR BIO HELP
QUESTION 1
Which of these choices is an example of acclimatization?
Plants growing in the shade grow larger leaves compared to the leaves growing in direct | ||
A.Pigweed plants ( Amaranthus retroflexus ) growing in North Carolina are more tolerant to heat than plants growing in Canada. | ||
A.The quadrate bone of snakes is movable rather than rigidl y attached, as seen in other vertebrates. | ||
A.Desert rodents produce more concentrated urine because of their longer loop of Henle as compared to the loop of Henle found in other rodents living in less arid conditions. |
10 points
QUESTION 2
Which of these choices is an example of connective tissue ?
cardiac muscle | ||
neurons | ||
blood | ||
glial cells |
10 points
QUESTION 3
Which of these choices best describes homeostasis ?
A.maintenance of a relatively constant internal environment | ||
A.all vertebrates have a similar body plan | ||
A.exchange of materials with the environment a cell is found in | ||
A.relationship of the structure and function in animals |
10 points
QUESTION 4
You are looking at two cells under a microscope. Both have the same shape, but cell A is smaller than cell B. Which of these statements correctly describes cell B?
A.The larger cell has less surface area than the smaller cell. | ||
A.The larger cell has a smaller sur face-to- | ||
A.The larger cell has the same surface-to-volume area as the smaller cell. | ||
A.The larger cell has more surface area than the smaller cell. |
10 points
QUESTION 5
Which of these statements is true about ectotherms?
A.Ectothermic animals tend to be found in arctic regions. | ||
A.E ctotherms tend to consume more calories than endotherms of similar size. | ||
A.Ectotherms tend to have more insulating structures than endotherms. | ||
A.Ectotherms use more energy for |
1.
__________ are fairly small organelles that provide a safe place within the cell to carry out certain biochemical reactions that generate harmful, highly reactive oxygen species. These chemicals are both generated and broken down in the same location.
Lysosomes |
Endosomes |
Peroxisomes |
Nucleosomes 2. Biologists cannot possibly study all living species. Instead, they try to understand cell behavior by studying a select subset of them. Which of the following characteristics are useful in an organism chosen for use as a model in laboratory studies?
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