Question 1

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

Accepted Answer

Ability to photosynthesize

Question 2

Which of the following best describes homeostasis?

Accepted Answer

The process by which organisms maintain a stable internal environment despite changes in external conditions.

Question 3

Which of the following is an example of a heterotroph?

Accepted Answer

A mushroom decomposing organic matter

Question 4

Which of the following correctly lists the levels of biological organization from smallest to largest?

Accepted Answer

Organelles, cells, tissues, organs, organ systems, organisms

Question 5

Which of the following domains includes organisms with cells that lack a nucleus?

Accepted Answer

Bacteria

Question 6

Which of the following is the correct binomial nomenclature for humans?

Accepted Answer

Homo sapiens

Question 7

Which of the following statements about ionic bonds is correct?

Accepted Answer

Ionic bonds form when one atom donates an electron to another atom, resulting in oppositely charged ions.

Question 8

Water is considered a 'universal solvent' because:

Accepted Answer

Its polar nature allows it to dissolve many ionic and polar substances.

Question 9

If the concentration of hydrogen ions $$[H^+] in a $$solution increases, what happens to the pH?

Accepted Answer

The pH decreases

Question 10

Which of the following is a property of water that is critical for aquatic life in cold climates?

Accepted Answer

Ice floats on water due to its lower density

Question 11

Which of the following is a correct match between a macromolecule and its monomer?

Accepted Answer

Lipid - Fatty acid

Question 12

Which type of chemical reaction is responsible for breaking down polymers into monomers?

Accepted Answer

Hydrolysis

Question 13

Which of the following best explains why ATP is important in living cells?

Accepted Answer

ATP provides energy for cellular processes

Question 14

Which organelle is known as the 'powerhouse' of the cell and why?

Accepted Answer

Mitochondria, because they produce ATP through cellular respiration

Question 15

Which of the following structures is present in prokaryotic cells but NOT in eukaryotic cells?

Accepted Answer

Plasmid

Question 16

Which organelles have their own DNA and ribosomes, and why is this important?

Accepted Answer

Mitochondria and chloroplasts; this supports the endosymbiotic theory of their origin

Question 17

Which of the following is a function of the plasma membrane?

Accepted Answer

Regulating the movement of substances into and out of the cell

Question 18

Which of the following best describes the function of the cytoskeleton?

Accepted Answer

It provides structural support and facilitates cell movement

Question 19

Which of the following is a correct example of a biological isotope?

Accepted Answer

Carbon-14 used in radiometric dating

Question 20

A scientist is studying a cell that contains a nucleus, mitochondria, and chloroplasts. Which domain does this organism most likely belong to?

Accepted Answer

Eukarya

General Biology Study Guide: Foundations of Life, Chemistry, Biological Molecules, and Cell Structure

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