Question 1

Which of the following is NOT a property shared by all living organisms?

Accepted Answer

Breathes oxygen

Question 2

In the hierarchy of biological organization, which of the following correctly describes the relationship between tissues and organs?

Accepted Answer

Organs are made up of tissues

Question 3

During an experiment, a scientist gives one group a new medication and another group a placebo. The group receiving the placebo serves as the:

Accepted Answer

Negative control

Question 4

Which of the following statements about energy flow in ecosystems is correct?

Accepted Answer

Energy is lost as heat during work

Question 5

Which of the following is NOT a property of liquid water?

Accepted Answer

Acidic

Question 6

The bond formed between sodium and chlorine atoms in table salt (NaCl) is:

Accepted Answer

Ionic bonding

Question 7

If you add a base to pure water, what happens to the pH?

Accepted Answer

It goes up

Question 8

Which of the following best describes a nonpolar covalent bond?

Accepted Answer

Electrons are shared evenly between atoms

Question 9

A monomer of DNA contains which of the following components?

Accepted Answer

A pentose sugar, a phosphate group, a nitrogenous base

Question 10

Which of the following statements about lipids is correct?

Accepted Answer

They are hydrophobic

Question 11

Which of the following is NOT a component of a typical bacterial cell?

Accepted Answer

Mitochondria

Question 12

According to the endosymbiotic theory, which organelle originated from a symbiotic relationship between primitive cells?

Accepted Answer

Mitochondria

Question 13

Which of the following is NOT true of prokaryotic cells?

Accepted Answer

They lack ribosomes

Question 14

Which of the following best describes the orientation of phospholipids in the plasma membrane?

Accepted Answer

Hydrophilic heads facing out and hydrophobic tails facing inward

Question 15

A cell placed in a hypertonic solution will:

Accepted Answer

Crenate

Question 16

Which of the following is NOT a form of endocytosis?

Accepted Answer

Exocytosis

Question 17

Which of the following best describes the function of ribosomes?

Accepted Answer

Protein synthesis

Question 18

Which of the following solutions would be safest to inject into a patient to avoid damaging their cells?

Accepted Answer

Isotonic

Question 19

Which of the following best describes the movement of water across a semipermeable membrane?

Accepted Answer

Osmosis

Question 20

Which of the following is the main driving force for metabolic reactions in cells?

Accepted Answer

Enzymes

Biology Unit 1 Review: Step-by-Step Study Guidance

Study Guide - Practice Questions