Q: Which of the following equations correctly represents the calculation of atomic weight?

$$\text{Atomic weight} = \text{Number of protons} + \text{Number of neutrons}$$

Q: Which of the following is the correct formula for calculating the number of electrons in a neutral atom?

$$\text{Number of electrons} = \text{Atomic number}$$

Question 1

Which of the following is NOT a shared characteristic of all living cells?

Accepted Answer

Presence of a nucleus

Question 2

Which domain of life includes organisms that are known for living in extreme environments, such as hot springs and salt lakes?

Accepted Answer

Archaea

Question 3

A scientist discovers a fossil with a structure that resembles a human arm but is found in a whale. This is an example of which type of evolutionary evidence?

Accepted Answer

Homologous structure

Question 4

Which of the following best describes the endosymbiotic theory?

Accepted Answer

Eukaryotic cells evolved from prokaryotic cells by engulfing smaller cells that became organelles.

Question 5

Which organelle is responsible for producing ATP through cellular respiration?

Accepted Answer

Mitochondrion

Question 6

What is the main difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles, prokaryotic cells do not.

Question 7

Which of the following is a vestigial structure in humans?

Accepted Answer

Appendix

Question 8

Which of the following best explains how natural selection leads to evolution?

Accepted Answer

Traits that increase survival and reproduction become more common in a population over generations.

Question 9

Which of the following equations correctly represents the calculation of atomic weight?

Accepted Answer

$$	ext{Atomic weight} = 	ext{Number of protons} + 	ext{Number of neutrons}$$

Question 10

Which type of chemical bond involves the sharing of electron pairs between atoms?

Accepted Answer

Covalent bond

Question 11

A cell is observed to have a large central vacuole, chloroplasts, and a cell wall. What type of cell is this most likely to be?

Accepted Answer

Plant cell

Question 12

Which organelle is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi apparatus

Question 13

If a cell's surface area to volume ratio decreases as the cell grows, what challenge does the cell face?

Accepted Answer

It becomes harder to exchange materials efficiently with the environment.

Question 14

Which of the following is found only in animal cells and not in plant cells?

Accepted Answer

Centrioles

Question 15

Which of the following best describes a neutron?

Accepted Answer

A neutral particle found in the nucleus

Question 16

Which of the following cell junctions is primarily responsible for preventing leakage of extracellular fluid between cells in animal tissues?

Accepted Answer

Tight junctions

Question 17

Which structure is responsible for movement in both prokaryotic and eukaryotic cells?

Accepted Answer

Flagella

Question 18

Which of the following is the correct formula for calculating the number of electrons in a neutral atom?

Accepted Answer

$$	ext{Number of electrons} = 	ext{Atomic number}$$

Question 19

Which of the following best describes the function of lysosomes in a cell?

Accepted Answer

Breaking down waste materials and cellular debris

Question 20

Which of the following is an example of an analogous structure?

Accepted Answer

The wings of a bat and the wings of a butterfly

General Biology Exam Study Guide: Domains of Life, Evolution, Chemistry of Biology, and Cell Structure

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