Question 1

Methane ($$\mathrm{CH_4$}) $$and water ($$\mathrm{H_2O}) $$both form covalent bonds. Which statement best explains the difference in the type of covalent bonds they form?

Accepted Answer

Methane forms nonpolar covalent bonds due to equal sharing of electrons, while water forms polar covalent bonds due to unequal sharing.

Question 2

A scientist is designing an experiment to test the effect of a new fertilizer on plant growth. Which of the following best describes a controlled experiment?

Accepted Answer

An experiment where all variables except the fertilizer type are kept constant.

Question 3

Which of the following best describes the difference between a triglyceride and a phospholipid?

Accepted Answer

A triglyceride has three fatty acid chains, while a phospholipid has two.

Question 4

Which of the following liquids is correctly matched with its approximate pH range?

Accepted Answer

Bleach: pH 11-12

Question 5

A solution is made by dissolving table salt in water. In this scenario, which is the solvent and which is the solute?

Accepted Answer

Water is the solvent; salt is the solute.

Question 6

A patient is diagnosed with anemia. Which dietary deficiency is most likely responsible for this condition?

Accepted Answer

Low iron

Question 7

Which of the following best describes the relationship between protons, neutrons, and electrons in an atom?

Accepted Answer

Protons are positively charged and found in the nucleus; electrons are negatively charged and orbit the nucleus.

Question 8

Which of the following is the smallest unit considered alive?

Accepted Answer

Cell

Question 9

A radioactive isotope of oxygen has 8 protons and 7 neutrons. What are its atomic number and mass number?

Accepted Answer

$$8$$ and $$15$$

Question 10

Which chemical group is hydrophobic and known to affect molecular shape?

Accepted Answer

Methyl

Question 11

Which of the following best explains why the red panda's radial sesamoid bone (false thumb) is an example of the biological theme 'structure and function'?

Accepted Answer

The bone's structure allows the panda to grasp bamboo, demonstrating how anatomical features are adapted for specific functions.

Question 12

What is the sum of the number of protons and neutrons in an atom called?

Accepted Answer

Mass number

Question 13

When an atom loses or gains one or more electrons, it becomes a(n):

Accepted Answer

Ion

Question 14

Which of the following is the correct order of protein structure from simplest to most complex?

Accepted Answer

Primary and Quaternary

Question 15

Which organ releases insulin in the human body?

Accepted Answer

Pancreas

Question 16

Which of the following nucleotide combinations is correct according to the rule of complementary base pairing in RNA?

Accepted Answer

A-U

Question 17

Which of the following is a possible consequence of exposure to uncontrolled high levels of radiation?

Accepted Answer

All of the above

Question 18

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

Accepted Answer

Energy flow is unidirectional, moving from the sun to producers to consumers.

Question 19

Which domain includes microscopic organisms that live in Earth's extreme environments?

Accepted Answer

Archaea

Question 20

Which of the following best describes the difference between qualitative and quantitative data?

Accepted Answer

Quantitative data is numerical; qualitative data is descriptive.

General Biology Quiz Study Guide: Chapters 1–3

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드