Download Bio 220 MiniQuiz 1

Bio 220 MiniQuiz 3
Name_____________________
Chapters 5,6,7
Date_____________Time_____
Microbial Growth, Metabolism and Protein Synthesis
True/false
_____1. Organic growth factors include amino acids and vitamins.
_____2. Chemoautotrophs use the light from the sun as their primary energy source.
_____3. Both chocolate agar and blood agar contain blood.
_____4. Transcription refers to the process of DNA synthesis.
Multiple choice
_____5. An obligate halophile requires high levels of
a. pH
b. salt
c. pressure d. temperature
_____6. What terms describe an organism that grows best at human body temperature and in the presence of
small amounts of oxygen?
a. mesophilic, faculatatively anaerobic
b. mesophilic, microaerophilic
c. mesophilic, aerobic
d. thermophilic microaerophilic
e. thermophilic anaerobic
_____7. During what stage of bacterial growth is the death rate equal to the growth rate?
a. lag
b. stationary
c. death
d. log
e. exponential
_____8. A medium for which the chemical composition is unknown is called a ______ medium.
a. chemically defined
b. sustaining
c. selective
d. complex
_____9. A medium which allows the growth of only certain organisms is called a _____medium.
a. chemically defined
b. selective
d. differential
d. complex
_____10. A permanent alteration in the DNA of an organism is called a/n
a. mutation
b. hereditary marker
c. replicon
d. allele
_____11. Transcription is the formation of ________ from a ________ template.
a. DNA, mRNA
b. RNA, DNA
c. mRNA, tRNA
d. protein, mRNA
12. The time it takes an organism to divide or a population of organisms to double is called the
_____________________________ time.