pH 8 and above solution is.

a. acidic
b. basic
c. neutral


Ans: b. basic

Biology & Microbiology

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Facilitated diffusion is an important method for cells in obtaining necessary molecules and removing other ones. Requirements for facilitated diffusion include  

A.  The carrier molecule must be specific to the molecule that is transported. The direction of movement is always with the concentration gradient, never against the gradient. B.  The carrier molecule is nonspecific to the molecule that is transported. The direction of movement is always with the concentration gradient, never against the gradient. C.  The carrier molecule is nonspecific to the molecule that is transported. The direction of movement is always against the concentration gradient, never with the gradient. D.  The carrier molecule must be specific to the molecule that is transported and an ATP molecule must be attached to the specific carrier. The direction of movement is always against the concentration gradient, never with the gradient.

Biology & Microbiology

When iodine intake is too low, production of _____ by the anterior pituitary gland ______

A. TSH; increases B. TSH; decreases C. thyroxine; increases D. triiodothyronine; decreases E. thyroxine; decreases

Biology & Microbiology

The TCA cycle produces

A. ATP through substrate-level phosphorylation. B. NADH. C. FADH2. D. precursor metabolites. E. All of the choices are correct.

Biology & Microbiology

A developer putting tract housing in a previously pristine area plans numerous small, open space areas where the

original habitat is to remain. As a conservationist, how would you suggest changing the plan, if at all (assume that canceling the development is not an option)? Why?

What will be an ideal response?

Biology & Microbiology