Stern’s Introductory Plant Biology 12th Edition By Bidlack – Test Bank

Multiple Choice Questions

1.   ___________ is defined as an irreversible increase in mass due to the division and enlargement of cells.
   A. Development
   B.  Differentiation
   C.  Determination
   D.  Growth
   E.  Change

2. Genes, acting in conjunction with the environment, control patterns of _________________.
   A. growth
   B.  development
   C.  differentiation
   D.  response to environmental changes
   E.  all of the above

3. Internal environmental factors coordinating plant growth and development include ________.
   A. water quality
   B.  light
   C.  hormones
   D.  temperature
   E.  day length

4. External environmental factors influencing plant growth and development include __________.
   A. water quality
   B.  water availability
   C.  minerals
   D.  light
   E.  all of the above

5. The plant physiologist credited with the discovery of auxins was
   A.Frits Went.
   B. Charles Darwin.
   C. Francis Darwin.
   D. R. F. M. van Steveninck.
   E. P. F. Wareing.

Stern – 011 Chapter… #6
 

6. Which of the following groups of plants tends to be the least sensitive to auxins?
   A.herbaceous dicots
   B. monocots
   C. woody dicots
   D. flowering plants with net-veined leaves
   E. plants with flower parts in multiples of 4 or 5

Stern – 011 Chapter… #9
 

7. Phenylacetic acid (PAA) is a/an  ____________.
   A. gibberellin
   B.  auxin
   C.  cytokinin
   D.  an ethylene derivative
   E.  none of these answers are correct.

Stern – 011 Chapter… #10
 

8. Which of the following pertaining to auxins is true?
   A.Their migration from the cells where they originate is relatively slow.
   B. Their movement is polar.
   C. Their movement requires the expenditure of energy stored in ATP molecules.
   D. They tend to proceed through parenchyma cells surrounding vascular bundles.
   E. All of these answers are correct.

Stern – 011 Chapter… #11
 

9. A precursor is
   A.a traveling electron.
   B. a growth-regulating substance.
   C. a simple molecule that is converted to a more complex molecule.
   D. a gene that determines writing style.
   E. one who is predisposed to using profanity.

Stern – 011 Chapter… #12
 

10. The defoliant Agent Orange was a 1-to-1 mixture of 2,4-D and
    A.TCDD.
    B. 2,4,5-T.
    C. DDT.
    D. TCP.
    E. 2,4,6-Z.