The ________ of the mitochondrion contains large-diameter pores that are permeable to ions and small organic molecules such as pyruvic acid
A) inner membrane
B) plasma membrane
C) outer membrane
D) matrix
E) cristae
C
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Which of the following is NOT a characteristic of carrier-mediated transport?
A given carrier protein normally works equally well transporting in both directions. The membrane of a single tubular cell contains more than one type of carrier protein. The distribution of carrier proteins can vary from one portion of the cell surface to another. In carrier-mediated transport, a specific substrate binds to a carrier protein.
Why can skin regenerate effectively even after considerable damage?
What will be an ideal response?
A(n) ________ is a sac of fluid associated with a synovial joint.
A. articular sac B. bursa C. meniscus D. articular cavity E. synovial vesicle
In addition to the essential and non-essential amino acids required for muscle cell function, what minerals are required?
A. Calcium and potassium B. Magnesium and potassium C. Zinc and iron D. Iron and calcium