A cell contains a higher concentration of a substance than its surrounding environment. The cell membrane is highly permeable to this substance. What will happen as a result of diffusion?
A) The cell membrane will keep the substance inside the cell.
B) The cell membrane will allow the substance to move to the cell's environment.
C) The cell membrane will use the process of active transport to take in more of the substance.
D) The cell membrane will allow more of the substance to enter the cell.
Ans: B) The cell membrane will allow the substance to move to the cell's environment.
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Four of the five items listed below are related
to genetic information. Select the EXCEPTION.
a. chromatids b. centromere c. chromosome d. phosphorylation e. polymerase
What term refers to the similarity between parents and offspring and what term refers to the lack of similarity between parents and offspring?
What will be an ideal response?
Which of the following are a reason(s) for the decline in cell numbers during the death phase?
A. Accumulation of toxic waste materials B. Depletion of O2 C. Depletion of nutrients D. All of the choices are correct.
Charles Darwin:
a. inferred the patterns of common ancestry without a mechanistic understanding of genes and heredity. b. developed a hypothesis about past events that later became testable. c. argued that humans descended from another primate species and once walked on all fours. d. All of the above.