When a cell uses chemical energy to perform work, it uses the energy released from a(n) ________ reaction to drive a(n) ________ reaction
A) exergonic; endergonic
B) endergonic; exergonic
C) exergonic; spontaneous
D) spontaneous; exergonic
Answer: A
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An opening in leaves that functions in the exchange of gases is called a ____
a. cuticle b. stoma c. guard cell d. pit e. pore
Gametetogenesis (gamete formation) is
a. the result of the process of mitosis. b. the pairing of homologous chromosomes. c. the formation of sex cells. d. the fusion of gametes. e. a process that occurs only in asexually reproducing forms.
When a protist possesses two flagella, both are generally used for propulsion. Assuming that a flagellum containing a crystalline rod cannot undulate back and forth, and assuming that two undulatory flagella can produce more effective locomotion than can a single flagellum, which of these organisms should have the least effective locomotion?
a. golden algae b. dinoflagellates c. Euglenids d. Chlamydomonas e. oomycetes
Which of the following is not a characteristic of an animal cell membrane?
What will be an ideal response?