If you are a biologist studying the chemical composition of the bacterial cell wall, which of the following organic molecules would you find in high concentration?
A) cellulose
B) peptidoglycan
C) chitin
D) proteins
E) ribosomes
Answer: B) peptidoglycan
You might also like to view...
The molecular formula for glucose is C6H12O6. What would be the molecular formula for a molecule made by linking three glucose molecules together by dehydration reactions?
A) C18H36O18 B) C18H32O16 C) C6H10O5 D) C18H30O15 E) C3H6O3
When processing a culture swab in the diagnostic laboratory the microbiologist should:
a. inoculate the media prior to making the direct smear. b. roll the swab back and forth on the slide making sure to transfer organisms. c. prepare the smear by rubbing the slide with one side of the swab and utilize the opposite slide to inoculate media. d. cancel the direct Gram stain and only set up the media. Request a second swab for the direct smear.
T-even bacteriophages ____
a. infect E. coli b. are nonvirulent c. consist of a head with no tail d. contain two molecules of double-stranded DNA in their head e. are temperate bacteriophages that do not have a lytic cycle
Why might you argue that swimming sperm in gymnosperms is not a highly adaptive trait?
What will be an ideal response?