How do guard cells differ from other epidermal
cells?
a. guard cells do not have a waxy cuticle
b. guard cells are more than one cell thick
c. guard cells are photosynthetic
d. guard cells are only found on the upper
epidermal surface of a leaf
e. all of these are differences between guard
cells and other epidermal cells
C
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All pinnipeds come ashore to: a. sleep and molt
b. birth and sleep. c. feed and mate. d. birth and molt.
Because of their environments and physiology, there is great interest in using members of the sulfate-reducing bacteria (SRB) Shewanella and Geobacter in bioremediation or to generate electricity in microbial fuel cells.
Answer the following statement true (T) or false (F)
The protein measured in the cells was likely synthesized by
A) mitochondria. B) the nucleolus. C) the smooth endoplasmic reticulum. D) ribosomes.
What role do the alpha subunits of RNA polymerase play in promoter binding?
a. They bind to UP elements. b. They bind to both the -10 element and -35 box. c. They bind only to the -35 box. d. They bind to the startpoint. e. They bind only to the -10 element.