Osmosis can be described as movement of ________
a. water across a membrane from an area of low solute concentration to an area of high solute concentration
b. water from a region of high solute concentration to a region of low solute concentration
c. solute from an area of low solute concentration to an area of high solute concentration
d. water molecules as they collide with one another and the wall of a container
a
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Why is it more difficult to treat fungal infections than bacterial infections in humans?
A) Fungi are larger organisms than bacteria and thus require stronger drugs to stop an infection. B) Most fungi are multicellular and thus the drugs required to treat a fungal infection must be able to kill several types of cells; bacteria, on the other hand, are unicellular and thus simpler to kill. C) Fungal and animal cells and proteins are similar. Thus, drugs that disrupt fungal cell or protein function may also disrupt human cell or protein function. D) Fungi are able to mutate more quickly than bacteria, so they quickly develop resistance to antifungal drugs.
What is incorrect about pertussis?
What will be an ideal response?
Which of the following does NOT apply to microorganisms?
A) microorganisms are very diverse B) microorganisms participate in the carbon cycle and the nitrogen cycle C) ALL microorganisms are unicellular organisms D) microorganisms help recycle waste products through decomposition E) all of the these apply
Which of the following reactions is performed by yeast in wine-making?
A) sugar ? ethanol B) ethanol ? acetic acid C) malic acid ? lactic acid D) carbon dioxide ? sucrose E) sugar ? CO2 + H2O