Complement proteins in their intact and unactivated form act as opsonins by binding to microorganisms and promoting phagocytosis

Indicate whether the statement is true or false


FALSE

Biology & Microbiology

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________ are toxic proteins released from the pathogen as it grows

A) Endotoxins B) Exotoxins C) Macrotoxins D) Microtoxins

Biology & Microbiology

If a human is deprived of oxygen due to trauma or injury, why is the brain the first area of concern? Check all that apply.

_____ Because the heart can use glycerol and fatty acids as energy sources during the postabsorptive period. _____ Because the skeletal muscles can use glycerol and fatty acids as energy sources during the postabsorptive period. _____ Because we cannot function without the brain. _____ Because the byproducts of the use of glycerol and fatty acids as energy sources during the postabsorptive period by the brain are toxic.

Biology & Microbiology

Which of these is not a required characteristic of life?

A. evolution B. structural organization C. energy use D. homeostasis E. movement

Biology & Microbiology

Which of the following is NOT one of the American Cancer Society’s warning signs?

a. change in bowel and bladder habits b. changes in appetite c. sores that don’t hea d. nagging cough e. unusual bleeding

Biology & Microbiology