Carbon dioxide enters the plant
a. at night in most plants.
b. when transpiration stops.
c. when the guard cells lose water and the stomata
open.
d. when potassium ions leave the guard cells.
e. when the guard cells are stimulated by light.
Answer: e
You might also like to view...
Antimicrobial agents that usually kill target organisms are said to be:
a. bactericidal. b. antibiotic. c. bacteriostatic. d. antagonistic.
The equation, C6H12O6 + 6O2 ?6CO2 + 6H2O (ATP + Heat), describes which of the following processes?
A. glycolysis B. cell fermentation C. anaerobic metabolism D. photosynthesis E. cell respiration
An enzyme is thought to optimize the fit between substrates by restraining and stretching or squeezing them into
certain shapes and moving them to the transition state, as described by the ____ model of enzyme activity.
a. lock and key b. induced-fit c. template d. activation e. conformational
DNA replication occurs
a. between the gap phases of interphase. b. immediately before prophase of mitosis. c. during prophase of mitosis. d. during prophase of meiosis. e. at any time during cell division