Which of the following is an incorrect match?
A) Golgi apparatus- protein alteration and packaging
B) ribosomes- protein synthesis
C) lysosomes- cellular digestion
D) mitochondria- production of cellular ATP
E) smooth endoplasmic reticulum- storage of water
Answer: E) smooth endoplasmic reticulum- storage of water
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A(n) ________ is an organism that transfers pathogens from one host to another.
Fill in the blank(s) with the appropriate word(s).
Identify the correct steps for cloning a gene of interest, then arrange them in the correct order
1. Transform the bacteria. 2. Incubate the DNA fragments and cut cloning vector with DNA ligase. 3. Use restriction enzymes to cut the gene of interest and the cloning vector. 4. Spread bacteria on medium containing lactose and ampicillin. 5. Spread bacteria on medium containing X-gal and ampicillin.
a. 4, 3, 1, 5 b. 3, 2, 5, 1 c. 3, 2, 1, 5 d. 2, 3, 1, 5 e. 3, 2, 1, 4
Blood that flows through capillaries in the small intestine flows next through vessels in the _____
a. stomach c. pancreas b. heart d. liver
An example of an epigenetic change is
A. a microbe secreting hyaluronidase to break down host hyaluronic acid. B. a microbe that can induce changes in host DNA, resulting in suppression of defenses or weakening of individual cells. C. a gram-negative organism releasing lipopolysaccharide from its cell wall upon lysis. D. Clostridium tetani secreting the exotoxin tetanospasmin.