Question 1

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

Accepted Answer

Ability to photosynthesize

Question 2

A multicellular organism is composed of cells, which together form tissues, organs, and organ systems. The ability of the heart to pump blood, which is not present in individual heart cells, is an example of:

Accepted Answer

Emergent properties

Question 3

Which of the following correctly matches the domain with its cell type?

Accepted Answer

Archaea – prokaryotic

Question 4

In a biological system, which of the following best illustrates the transfer of information?

Accepted Answer

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

Question 5

Which of the following is an example of 'structure determines function' in biology?

Accepted Answer

The double-helix shape of DNA allows it to store genetic information

Question 6

Which of the following best describes the flow of energy and cycling of matter in an ecosystem?

Accepted Answer

Energy flows from the sun to producers to consumers and is eventually lost as heat, while matter cycles between organisms and the environment

Question 7

Which of the following is an example of evolution occurring in present-day populations?

Accepted Answer

Bacteria developing resistance to antibiotics

Question 8

A patient is given radioactive iodine ($$^{131}I) to $$diagnose thyroid problems. Which property of isotopes makes this possible?

Accepted Answer

Isotopes have the same number of protons but different numbers of neutrons, allowing some to be radioactive

Question 9

Which of the following best distinguishes an element from a compound?

Accepted Answer

An element consists of only one type of atom, while a compound contains two or more different elements chemically bonded

Question 10

Which of the following is NOT one of the four most prevalent elements in the human body?

Accepted Answer

Calcium

Question 11

A neutral atom of sodium ($$^{23}_{11}Na) $$has how many protons, neutrons, and electrons?

Accepted Answer

11 protons, 12 neutrons, 11 electrons

Question 12

Which subatomic particle determines the identity of an element?

Accepted Answer

Proton

Question 13

Which of the following best describes the difference between polar covalent bonds and hydrogen bonds?

Accepted Answer

Polar covalent bonds involve unequal sharing of electrons within a molecule, while hydrogen bonds are weak attractions between molecules

Question 14

Which of the following is a trace element essential for human health, and what is its role?

Accepted Answer

Iodine, required for thyroid hormone production

Question 15

Which of the following best describes the formation of an ion?

Accepted Answer

An atom gains or loses electrons, resulting in a net charge

Question 16

A water molecule ($$H_2O) is $$held together by which type of bond, and what type of bond forms between two water molecules?

Accepted Answer

Polar covalent bonds within the molecule; hydrogen bonds between molecules

Question 17

Which scenario best illustrates natural selection?

Accepted Answer

A population of insects becomes resistant to a pesticide over several generations

Question 18

Which of the following is a correct comparison between ionic and covalent bonds?

Accepted Answer

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons

Question 19

Which of the following is an example of an interaction within a biological system?

Accepted Answer

Insulin released by the pancreas lowers blood glucose levels

Question 20

A scientist discovers a new organism that is unicellular, lacks a nucleus, and can survive in extreme environments. To which domain does this organism most likely belong?

Accepted Answer

Archaea

BIO 101 Study Guide: Foundations of Biology (Chapters 1-3)

Study Guide - Practice Questions

Study Guide - Flashcards