$$M = \text{number of protons} + \text{number of neutrons}$$

Question 1

Which of the following is NOT a universal characteristic of all living organisms?

Accepted Answer

Presence of a nucleus

Question 2

Which statement best describes the difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells contain their genetic material in a nucleus, while prokaryotic cells do not.

Question 3

Which of the following is an example of a hypothesis in the scientific method?

Accepted Answer

If fertilizer is added to soil, then plant growth will increase.

Question 4

In an experiment testing the effect of light on plant growth, which is the independent variable?

Accepted Answer

Amount of light exposure

Question 5

Which of the following best describes an emergent property?

Accepted Answer

A property that arises only when individual parts interact in a system

Question 6

Which subatomic particle determines the chemical behavior of an atom?

Accepted Answer

Electron

Question 7

Which of the following is a correct representation of the atomic mass ($$M) of an $$atom?

Accepted Answer

$$M = 	ext{number of protons} + 	ext{number of neutrons}$$

Question 8

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

Accepted Answer

Covalent bond

Question 9

Which of the following is a polymer and its corresponding monomer?

Accepted Answer

Starch and glucose

Question 10

Which process breaks down polymers into monomers?

Accepted Answer

Hydrolysis

Question 11

Which of the following is an example of a protein that functions as a hormone?

Accepted Answer

Insulin

Question 12

Which polysaccharide is used for energy storage in animals?

Accepted Answer

Glycogen

Question 13

Which of the following best explains why saturated fats are solid at room temperature?

Accepted Answer

Their fatty acid chains are straight and pack closely together.

Question 14

Which statement about phospholipids is correct?

Accepted Answer

They form the main component of cell membranes.

Question 15

Which of the following is a function of DNA?

Accepted Answer

Storing genetic information

Question 16

Which statement correctly describes the central dogma of molecular biology?

Accepted Answer

DNA is transcribed into RNA, which is then translated into protein.

Question 17

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

Accepted Answer

Chloroplast

Question 18

Which cytoskeletal element is primarily responsible for cell movement, such as the action of cilia and flagella?

Accepted Answer

Microtubules

Question 19

According to the endosymbiosis theory, which organelle originated from a symbiotic relationship between primitive eukaryotic cells and prokaryotes?

Accepted Answer

Mitochondrion

Question 20

Which of the following best describes a buffer in biological systems?

Accepted Answer

A solution that resists changes in pH when acids or bases are added

General Biology I: Core Concepts and Study Guide

Guida di studio - Domande di pratica