Course

Biology Science

Study Pack

Set 2 Science Fiction Bad Science And Pseudoscience

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Question 1

(Multiple Choice)

Free
What kind of bond holds two water molecules to each other?

A) hydrogen bonds
B) ionic bonds
C) nonpolar covalent bonds
D) polar covalent bonds

Answer

Question 2

(Multiple Choice)

Free
Which macromolecule has a sugar-phosphate backbone?

A) lipid
B) nucleic acid
C) protein
D) polysaccharide

Answer

Question 3

(Multiple Choice)

Free
Which chemical condition describes the electrons in a water molecule being shared unequally between the hydrogen and oxygen atoms?

A) hydrophobic
B) ionic
C) noncovalent
D) polar

Answer