Q: Which of the following is the correct formula for calculating the atomic mass of an element?

$$\text{Atomic Mass} = \text{Number of Protons} + \text{Number of Neutrons}$$

Question 1

Which scientist is credited with discovering cells by observing cork under a microscope?

Accepted Answer

Robert Hooke

Question 2

Which of the following best describes the difference between deductive and inductive reasoning in the scientific method?

Accepted Answer

Deductive reasoning starts with a general principle and predicts specific results, while inductive reasoning starts with specific observations and forms general principles.

Question 3

A scientist is testing the effect of sunlight on plant growth. She sets up two groups: one receives sunlight, the other does not. What is the experimental variable in this scenario?

Accepted Answer

Exposure to sunlight

Question 4

Which of the following is the correct formula for calculating the atomic mass of an element?

Accepted Answer

$$	ext{Atomic Mass} = 	ext{Number of Protons} + 	ext{Number of Neutrons}$$

Question 5

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

Accepted Answer

Its ability to form hydrogen bonds

Question 6

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

Accepted Answer

The solution is acidic and has a high concentration of H$$^+$$ ions.

Question 7

Which of the following best describes dehydration synthesis?

Accepted Answer

Forming polymers from monomers by removing water

Question 8

Which of the following is a polysaccharide and serves as an energy storage molecule in plants?

Accepted Answer

Starch

Question 9

Which of the following is the correct ratio of carbon to hydrogen to oxygen atoms in carbohydrates?

Accepted Answer

$$1:2:1$$

Question 10

Which level of protein structure is primarily determined by hydrogen bonding between the backbone atoms, resulting in alpha helices and beta sheets?

Accepted Answer

Secondary structure

Question 11

A molecule is described as amphipathic. Which of the following best explains this property?

Accepted Answer

It has both hydrophobic and hydrophilic regions

Question 12

Which of the following is NOT a characteristic of enzymes?

Accepted Answer

They are consumed during the reaction

Question 13

Which scientist is known for disproving the theory of spontaneous generation by demonstrating that microorganisms come from other microorganisms?

Accepted Answer

Louis Pasteur

Question 14

Which of the following best describes the function of ATP in cells?

Accepted Answer

It provides energy for cellular processes

Question 15

Which of the following is the correct structure of a nucleotide?

Accepted Answer

A phosphate group, a pentose sugar, and a nitrogenous base

Question 16

Which of the following is a correct example of a control group in a scientific experiment?

Accepted Answer

A group that receives no treatment or a placebo

Question 17

Which of the following best describes the relationship between polar covalent bonds and water's properties?

Accepted Answer

Polar covalent bonds in water molecules result in hydrogen bonding, which gives water its unique properties.

Question 18

Which of the following is the correct formula for calculating pH?

Accepted Answer

$$	ext{pH} = -\log_{10}[	ext{H}^+]$$

Question 19

Which of the following is a function of proteins in living organisms?

Accepted Answer

Catalyzing biochemical reactions

General Biology Study Guide: Life, Scientific Method, Chemistry, and Organic Molecules

Guida di studio - Domande di pratica

Study guide - Flashcard