A photosystem consists of which of the following structures?
a. Primary electron acceptor
b. Chlorophyll molecules
c. Light-harvesting complexes
d. All of the listed structures are parts of a photosystem.
e. Reaction-center complex
Answer: d. All of the listed structures are parts of a photosystem.
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Monocots are the angiosperms that include grasses and lilies, as well as orchids and palms.
a. They have true woody tissue. b. They exhibit traits from both monocots and eudicots. c. They are the most abundant of all the flowering plants. d. They grow only in cold climates.
Energy is commonly defined as ____
a. a form of heat b. thermodynamics c. the capacity to change d. the capacity to do work e. the ability to do work
What is the process in which one activated receptor can give rise to thousands of
final products? a. signal transcription
b. signal transmission c. signal transduction d. signal termination e. signal amplification
The ________, which acts as a brake on cell division, was discovered in studying the eye cancer retinoblastoma.
Fill in the blank(s) with the appropriate word(s).