In green and purple bacteria, electrons to reduce CO2 can come from
A) CO2.
B) H2O.
C) C6H12O6.
D) H2S.
E) chlorophyll.
D
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Cataracts occur when the lens becomes opaque. Which symptoms most likely would be present in a patient with this
condition?
a. increased intraocular pressure b. enlarged pupil c. eye pain d. blurred vision e. headache
Nitrogen-fixing bacteria convert atmospheric nitrogen (N2 gas) into ammonium (NH4). Why is this conversion important for life on Earth?
A) Ammonium is an important cleaning agent. B) Nitrogen gas is toxic. C) Ammonium is a very important plant nutrient. D) Nitrogen gas leads to global warming.
Compare and contrast slime molds and water molds.
What will be an ideal response?
Saturated fats _________(increase/decrease) the amount of bad cholesterol (LDL) in arteries.
Fill in the blank(s) with the appropriate word(s).