1. Prokaryotic cells are able to evolve very fast, which helps them to rapidly adapt to new food sources and develop resistance to antibiotics. Which of the options below lists the three main characteristics that support the rapid evolution of prokaryotic populations?
no organelles, cell wall, can exchange DNA
large population, rapid growth, can exchange DNA
aerobic, motile, rapid growth
microscopic, motile, anaerobic
2.
The cytoskeleton provides support, structure, motility, and organization, and it forms tracks to direct organelle and vesicle transport. Which of the cytoskeletal elements listed below is the thickest?
none of the above (all the same thickness)
intermediate filaments
microtubules
actin filaments
3.
What unit of length would you generally use to measure a typical plant or animal cell?
millimeters
nanometers
centimeters
micrometers
4.
Which of the following are examples of isomers?
adenine and guanine
glycogen and cellulose
alanine and glycine
glucose and galactose
5.
Which of the following factors do not influence the length of a covalent bond?
the attractive forces between negatively charged electrons and positively charged nuclei
the tendency of atoms to fill the outer electron shells
the repulsive forces between the positively charged nuclei
the minimization of repulsive forces between the two nuclei by the cloud of shared electrons
6.
You wish to explore how mutations in specific genes affecting sugar metabolism might alter tooth development. Which organism is likely to provide the best model system for your studies.
E. coli
mice
horses
Arabidopsis
1. Prokaryotic cells are able to evolve very fast, which helps them to rapidly adapt to new food sources and develop resistance to antibiotics. Which of the options below lists the three main characteristics that support the rapid evolution of prokaryotic populations?
no organelles, cell wall, can exchange DNA
large population, rapid growth, can exchange DNA
aerobic, motile, rapid growth
microscopic, motile, anaerobic
2.
The cytoskeleton provides support, structure, motility, and organization, and it forms tracks to direct organelle and vesicle transport. Which of the cytoskeletal elements listed below is the thickest?
| none of the above (all the same thickness) |
| intermediate filaments |
| microtubules |
| actin filaments |
3.
What unit of length would you generally use to measure a typical plant or animal cell?
| millimeters |
| nanometers |
| centimeters |
| micrometers 4. Which of the following are examples of isomers?
|
