Cell-mediated immunity is to T cells as antibody-mediated immunity is to ___________.
What will be an ideal response?
B cells
Biology & Microbiology
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Carrier proteins are often used by the cell to transport ____
a. H2O b. proteins c. glucose and amino acids d. steroid hormones e. CO2
Biology & Microbiology
Melatonin levels are associated with
a. target cells in the hypothalamus. b. body temperature. c. sleep cycles. d. seasonal affective disorder. e. all of these
Biology & Microbiology
Because enzymes affect the speed of chemical reactions without being consumed, they are referred toas:a
hydrogen acceptors. b. activation energy. c. catalysts. d. cytochromes. e. transformation proteins.
Biology & Microbiology
Occasionally when doing Serologic Testing to identify strains of Salmonella isolates, the test for different O Antigens is negative. What is the most likely explanation?
What will be an ideal response?
Biology & Microbiology