The goal of the streak plate technique is to
A) compare how the shape, color and margin differ in colonies from a pure culture.
B) isolate a pure culture for study from a single colony.
C) spread out a thick layer of bacteria and isolate the bacteria that outcompete the rest.
D) compare all of the colonies on a plate with a mixed culture.
E) visualize all of the colonies on a plate from a pure culture.
Answer: B
You might also like to view...
The benefit provided by all hearts with two atria is
A. not all the blood has to pass through both sides of the heart. B. there is an extra place to store blood when the animal is at rest. C. that there are two muscular regions for pumping blood out of the heart to different organs. D. that blood is pumped into body tissues at high pressure. E. complete separation of oxygenated and deoxygenated blood.
When a membrane is said to be selectively permeable, this means that _____
A. half of the membrane is permeable, and the other half is not B. only water can pass through it C. the membrane regulates movement of substances into and out of the cell D. the membrane is permeable only part of the time
Bacterial cells that are isolated from a healthy human's skin and appear as clusters of cocci are likely of the genus
a. Bacillus. b. Escherichia. c. Staphylococcus. d. Pseudomonas.
Under what circumstance would your body experience an increase in erythropoietin secretion?
A. If your hematocrit is elevated above normal levels B. After drinking 5 liters of water in just 2 hours C. If you are suffering from dehydration D. If you just moved from New York City to start training for a marathon in the "Mile-High" city of Denver, Colorado E. If you are suffering from hypertension