The Irish Potato Famine (from potato blight) was caused by a mildew that belongs to which group?
A) bacterium
B) stramenopile
C) foraminiferan
D) apicomplexan
E) virus
Ans: B) stramenopile
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In the photograph of the zygote fungus Pilobolus, what are the dark "hats" atop of the structures?
a. hypha b. gametangium c. zygote d. sporangium e. nucleus
An endergonic reaction can proceed only if it absorbs:a
randomly available free energy. b. less free energy than is released by a coupled exergonic reaction. c. more free energy than is released by a coupled exergonic reaction. d. less free energy than is released by a coupled endergonic reaction. e. the same amount of free energy that is absorbed by the enzymatic breakdown of proteins.
Scientific data:
A) can be generalized to a much larger population. B) are used to support or refute a hypothesis. C) cannot be collected in a completely unbiased way. D) are always true. E) must be collected in laboratories.
Which type of proteins are involved in nutrient transport across the plasma membrane and why?
A) integral proteins, because they span the membrane and are able to carry nutrients across the membrane B) integral proteins, because they are smaller and can travel across the membrane, thereby carrying nutrients across the membrane C) peripheral proteins, because they are smaller and can travel across the membrane, thereby carrying nutrients across the membrane D) receptor proteins, because their carbohydrate chains bind to nutrients and carry them across the membrane E) peripheral proteins, because they span the membrane and are able to carry nutrients across the membrane