Which of the following is NOT a characteristic of osmosis?

a. water flows from low solute concentration to high solute concentration
b. occurs across a membrane freely permeable to water
c. occurs across a membrane freely permeable to solutes
d. passive process


Ans: c. occurs across a membrane freely permeable to solutes

Biology & Microbiology

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The most common form of gene therapy involves inserting a normal gene into cells that contain a defective version of the gene.  In order to use gene therapy to prevent a man from passing a defective gene on to future generations, you should try to insert normal copies of the gene into  

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Biology & Microbiology

Members of one major class of the lineage ____ are called tunicates or sea squirts. They have

tadpolelike larvae, but their sessile adult form is usually encased in a leathery "tunic."

a. Petromyzontoidea b. Placodermi c. Cephalochordata d. Urochordata e. Myxinoidea

Biology & Microbiology

A patient excretes a large volume of very dilute urine on a continuing basis. This is most likely due to:

a. excessive ADH secretion b. absence of ADH c. overproduction of aldosterone d. increased blood pressure e. increased renin secretion

Biology & Microbiology

The most accurate description of an organism with genotype AaBb is

A. homozygous dominant. B. heterozygous. C. heterozygous dominant. D. homozygous recessive. E. heterozygous recessive.

Biology & Microbiology