Grana and thylakoids are structural components found in ____
a. nucleoli
b. mitochondria
c. ribosomes
d. chromoplasts
e. chloroplasts
E
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Name the three yeast proteins required for the control of gene expression by galactose. What is the function of each?
What will be an ideal response?
The Sun provided ____ in order to power the development of life on early Earth
a. continual energy b. a temperature range for liquid water to form c. radiation to power mutations d. continual energy and a temperature range for liquid water to form e. continual energy, a temperature range for liquid water to form, and radiation to power mutations
The sun shining on a tidal pool during a hot day heats the water. As some water evaporates, the pool becomes saltier, causing _____
A) an increase in its carbon dioxide content B) a decrease in its oxygen content C) an increase in its ability to sustain aerobic organisms D) a decrease in the water's density
Members of the genus Lactobacillus ________.
A. are normal flora of the human body in the mouth, intestinal tract, and vagina B. produce large amounts of H2 as a byproduct of metabolism when growing on glucose C. are strict aerobes D. grow optimally under slightly alkaline conditions