Q: Which of the following is the correct formula to calculate the atomic mass of an atom?

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

Question 1

Which of the following is NOT one of the seven characteristics of life?

Accepted Answer

Ability to photosynthesize

Question 2

A scientist wants to test the effect of sunlight on plant growth. She sets up two groups: one exposed to sunlight and one kept in darkness. What is the independent variable in this experiment?

Accepted Answer

Exposure to sunlight

Question 3

Which of the following best describes a controlled experiment?

Accepted Answer

An experiment in which only one variable is changed while others are kept constant

Question 4

Pasteur’s germ theory disproved which previously held scientific belief?

Accepted Answer

Spontaneous generation

Question 5

Which of the following is the correct formula to calculate the atomic mass of an atom?

Accepted Answer

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

Question 6

Which property of water allows it to dissolve many substances, making it an excellent solvent?

Accepted Answer

Its polarity

Question 7

Which of the following is NOT a macromolecule found in cells?

Accepted Answer

Glucose

Question 8

What type of chemical bond holds the two strands of DNA together?

Accepted Answer

Hydrogen bonds

Question 9

Which of the following best describes a polymer?

Accepted Answer

A molecule made of repeating monomer units

Question 10

A protein’s primary structure is determined by:

Accepted Answer

The sequence of amino acids

Question 11

Which organelle is found in plant cells but NOT in animal cells?

Accepted Answer

Chloroplast

Question 12

What is the main function of the plasma membrane?

Accepted Answer

To control the movement of substances in and out of the cell

Question 13

Which of the following best describes the difference between cytoplasm and cytosol?

Accepted Answer

Cytoplasm includes all organelles and cytosol is the fluid portion

Question 14

Which of the following is a criterion for a hydrogen bond to form?

Accepted Answer

A hydrogen atom covalently bonded to a highly electronegative atom

Question 15

Which of the following is the strongest type of chemical bond discussed in class?

Accepted Answer

Covalent bond

Question 16

If an atom has 8 protons, 8 neutrons, and 10 electrons, what is its charge?

Accepted Answer

$$-2$$

Question 17

Which of the following is a function of proteins synthesized in the endomembrane system?

Accepted Answer

Transport and secretion

Question 18

Which of the following is a monomer of DNA?

Accepted Answer

Nucleotide

Question 19

Which of the following best explains why water has a high specific heat?

Accepted Answer

Water molecules form hydrogen bonds that require more energy to break

Question 20

Which of the following is a real-world application of Pasteur’s germ theory?

Accepted Answer

Improvement of surgical sterilization techniques

General Biology Study Guide: Core Concepts and Review

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