The tobacco mosaic virus has a ____ shape, whereas the T4 bacteriophage has a head-and-tail shape

Fill in the blank with the appropriate word.


helical

Biology & Microbiology

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Acetylcholine, a neurotransmitter, binds to ____

a. receptor tyrosine kinases b. ligand-gated ion channels c. adenylyl cyclase d. MAPK e. G-coupled protein receptors

Biology & Microbiology

. The substance that typically provides rigidity to fungal cell walls, and is found in some animals, is

____.

a. lignin b. cellulose c. starch d. collagen e. chitin

Biology & Microbiology

Thermoduric mesophiles are often responsible for spoilage of improperly canned foods.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following is mismatched?

A. somatic motor nerves-smooth muscle, cardiac muscle, glands B. sensory nerves-afferent C. motor nerves-efferent D. visceral sensory nerves-body organs E. somatic sensory nerves-skin, muscles, joints, special senses

Biology & Microbiology