Based on the function of mitochondria, what substance is able to pass through the outer membrane of the mitochondria easily?  

A.  Oxygen
B.  Sugars
C.  Amino acids
D.  Potassium ions


A.  Oxygen

Biology & Microbiology

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Polyadenylation of mRNA requires all of the following except:

A. Pol II extends the transcript beyond the site where the poly(A) tail is added. B. The site of poly(A) addition is marked by specific sequence elements in the transcript. C. The transcript is cleaved by an endonuclease that associates with the C-terminal domain of Pol II. D. Polyadenylate polymerase uses a poly(U) RNA template to synthesize the poly(A) tail.

Biology & Microbiology

In temperate regions of the Northern Hemisphere, north-facing slopes are less humid than south-facing slopes

Indicate whether the statement is true or false

Biology & Microbiology

There are no microorganisms that can cross the transplacental barrier, so fetuses are protected until birth.

a. true b. false

Biology & Microbiology

After eating a Yummie cake, what molecule do you expect to be most abundant in your digestive system?

A) amino acids B) monosaccharides C) cellulose D) triglycerides

Biology & Microbiology