Discrete packets of kinetic energy in light are called

A. lasers.
B. grana.
C. photons.
D. protons.
E. electrons.


C. photons.

Biology & Microbiology

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What type of covalent bond between amino acid side chains (R-groups) functions in maintaining a polypeptide's specific three-dimensional shape?

A) ionic bond B) hydrophobic interaction C) van der Waals interaction D) disulfide bond E) hydrogen bond

Biology & Microbiology

The markers that identify "self" are actually

A) genes. B) proteins. C) lipids. D) small surface bumps. E) triplet codons

Biology & Microbiology

Xylem tissue may contain each of these cell types, except which?

A. rays B. fibers C. tracheids D. sieve cells E. vessel members

Biology & Microbiology

The Supreme Court has ruled that ______.

A. symbolic speech is always protected B. symbolic speech is never protected C. symbolic speech is not protected when it is most likely to inspire fear of bodily harm D. symbolic speech does not include flag burning

Biology & Microbiology