Where are photosystems located?
A) chlorophyll
B) thylakoid membrane
C) mitochondria
D) stroma
B
Biology & Microbiology
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Guard cells are often associated with __________, special epidermal cells that provide a reservoir of
water and ions. a. companion cells b. cuticle cells c. cork cells d. sclerenchyma cells e. subsidiary cells
Biology & Microbiology
The sensor kinase for the OmpF: OmpC two-component regulatory system is ________.
A. the EnvZ protein B. the OmpK protein C. the MicF RNA D. None of the choices are correct.
Biology & Microbiology
Animal viruses typically enter a cell by
a. membrane fusion. b. endocytosis. c. membrane fusion or endocytosis. d. direct penetration.
Biology & Microbiology
When two tertiary proteins combine you have ___________ structure.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology