Arrange the steps of antibody-mediated immunity in the proper order
1) plasma cells secrete antibodies
2) TH cells interact with B cells displaying the same antigen-MHC complex
3) contact with antigen
4) clones of B cells produced
5) fragmentation of antigen
a. 3 ? 4 ? 2 ? 1 ? 5
b. 3 ? 5 ? 2 ? 4 ? 1
c. 4 ? 3 ? 2 ? 1 ? 5
d. 1 ? 3 ? 5 ? 2 ? 4
e. 5 ? 3 ? 4 ? 2 ? 1
B
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How does the digestion and absorption of fat differ from that of carbohydrates?
A. Processing of fat does not require any digestive enzymes, whereas the processing of carbohydrates does. B. Fat absorption occurs in the stomach, whereas carbohydrates are absorbed from the small intestine. C. Carbohydrates need to be emulsified before they can be digested, whereas fats do not. D. Most absorbed fat enters the lymphatic system, whereas carbohydrates directly enter the blood. E. Fat must be partially digested by bacteria in the large intestine before it can be absorbed, which is not the case for carbohydrates.
When two alleles of the same gene are different, the individual carrying those alleles is said to be ____
a. recessive b. heterozygous c. phenotypic d. somatic e. homozygous
The developing fetus secretes chorionic gonadotropin only during the first 2 weeks of pregnancy
Indicate whether the statement is true or false
Following an endospore stain, how does one distinguish endospores from vegetative cells?
a. Vegetative cells are pink, endospores are green. b. Vegetative cells are pink, endospores are purple. c. Vegetative cells are purple, endospores are pink. d. Vegetative cells are green, endospores are pink.