Question 1

Which of the following statements best describes the role of ribosomes in a eukaryotic cell?

Accepted Answer

Ribosomes assemble amino acids into polypeptides, which are then processed by the rough ER.

Question 2

Which of the following is the correct order of biological organization from largest to smallest?

Accepted Answer

Organism $$\rightarrow$$ Organ system $$\rightarrow$$ Organ $$\rightarrow$$ Tissue $$\rightarrow$$ Cell $$\rightarrow$$ Organelle $$\rightarrow$$ Molecule $$\rightarrow$$ Atom

Question 3

A solution has a pH of 4. Which of the following statements is true about this solution?

Accepted Answer

It is acidic and has a high concentration of $$\mathrm{H^+}$$ ions.

Question 4

Which type of chemical bond involves the transfer of electrons from one atom to another?

Accepted Answer

Ionic bond

Question 5

Which of the following statements about water is correct?

Accepted Answer

Water molecules stick to themselves due to cohesion, and ice floats because it is less dense than liquid water.

Question 6

Which of the following is a function of the Golgi apparatus in eukaryotic cells?

Accepted Answer

Packaging and delivering proteins made by ribosomes

Question 7

Which of the following statements about antibiotics is true?

Accepted Answer

Antibiotics kill bacteria, not viruses.

Question 8

Which of the following is a correct example of a dehydration reaction?

Accepted Answer

Forming a polypeptide from amino acids by removing water.

Question 9

A cell is placed in a hypertonic solution. What will happen to the cell?

Accepted Answer

The cell will shrink as water leaves.

Question 10

Which of the following best describes active transport across a cell membrane?

Accepted Answer

Movement of molecules up their concentration gradient using energy.

Question 11

Which of the following is NOT a feature of prokaryotic cells?

Accepted Answer

Presence of a nucleus

Question 12

Which of the following molecules is a monomer for nucleic acids?

Accepted Answer

Nucleotide

Question 13

Which property of water allows it to move up plant stems against gravity?

Accepted Answer

Cohesion and adhesion

Question 14

Which of the following is the correct scientific name format for humans?

Accepted Answer

Homo sapiens

Question 15

Which of the following statements about membrane fluidity is correct?

Accepted Answer

Cholesterol stabilizes membrane fluidity at high and low temperatures.

Question 16

Which process describes the passive movement of molecules down their concentration gradient?

Accepted Answer

Diffusion

Question 17

Which of the following is a correct example of bulk transport?

Accepted Answer

Endocytosis of large particles

Question 18

Which of the following is true about hydrogen bonds?

Accepted Answer

They are weak attractions between hydrogen and electronegative atoms like oxygen or nitrogen.

Question 19

Which of the following statements about natural selection is correct?

Accepted Answer

Natural selection passes on traits that help survival and reproduction.

Question 20

Which of the following is a correct description of osmosis?

Accepted Answer

Movement of water from low to high solute concentration through a semipermeable membrane.

Fundamental Concepts in GOB Chemistry: Cells, Molecules, and Biological Processes

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