Which phrase best describes passive transport?
A.) requires transport proteins
B.) requires no energy from the cell
C.) requires an isotonic solution
D.) requires facilitation by enzymes
Ans: B.) requires no energy from the cell
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Does ADP contain the capacity to provide energy for the cell?
A. No. ADP does not contain any bonds that can be broken to provide energy for the cell. B. Yes. ADP has the same capacity to provide energy for the cell as ATP. C. Yes. Cleaving the bond between the ribose sugar and the two phosphate groups can provide energy for the cell. D. Yes. Cleaving the bond between the terminal phosphate and the phosphate attached to the ribose sugar can provide energy for the cell.
When it is important to count the number of cells, determine cell size, and differentiate between dead and live cells, a(n) ________ is used.
A. spectrophotometer B. SEM C. Coulter counter D. flow cytometer E. methylene indicator dye
Adaptive explanations for behaviors seek to get at ultimate causes for those behaviors.
Answer the following statement true (T) or false (F)
An acoelomate is an animal that
A. has a coelom. B. has a pseudocoelom. C. has both a coelom and a pseudocoelom. D. has neither a coelom nor a pseudocoelom. E. has a coelom during early development but later loses it.