A scientist who claims to have discovered a new plant hormone must demonstrate that this compound is

A) made from cell proteins.
B) produced in large amounts.
C) capable of stimulating differentiated cells to form meristem tissue.
D) formed in one part of the plant but has an effect in a different part.
E) needed by the plant as a major source of energy.


D

Biology & Microbiology

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During the reactions of photosynthesis, __________ is reduced and __________ is oxidized

a. O2; C6H12O6 b. CO2; C6H12O6 c. H2O; C6H12O6 d. O2; H2O e. CO2; H2O

Biology & Microbiology

Which organizational unit includes the fewest species of organisms?

a. class b. biosphere c. community d. population e. ecosystem

Biology & Microbiology

In a polypeptide, when peptide bonds are formed between adjacent amino acids:

A) a water molecule is gained by the carboxyl group B) the amino groups of two adjacent amino acids are attracted by hydrogen bonds C) the carboxyl group of one amino acid joins with the amino group of the adjacent amino acid and water is lost D) the protein folds into a complex shape E) the carboxyl groups of two adjacent amino acids are joined by a covalent bond

Biology & Microbiology

Transfusion reactions are the result of antibody reaction to

A. glycolipids and glycoproteins on the surface of red blood cells. B. MHC molecules on red blood cells. C. MHC molecules on white blood cells. D. plasma proteins. E. foreign antibodies.

Biology & Microbiology