Name two genera of bacteria that produce endospores.
What will be an ideal response?
Clostridium and Bacillus
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Viruses variously depend on their host cell for parts of the viral replication and maturation process. Many viruses do however encode for some enzymes that facilitate certain steps or virus-specific processes for viral replication and maturation
Which cellular processes and enzymes do ALL viruses lack and must therefore ALWAYS be supplied by the host cell? What will be an ideal response?
Photolyases are present in all cells except in:
A. bacteria. B. archaea. C. humans. D. yeast. E. both C and D.
Which of the following is not a characteristic of fungi?
a. all are eukaryotic b. all break down food internally c. most are multi-celled d. some form mushroom fruiting bodies e. some are single celled
Resistance to blood flow depends mainly on
a. the diastolic pressure. b. elastic tissue of the vessels. c. blood vessel diameter. d. valves in the vessels. e. ultrafiltration pressure in the capillaries.