Question 1

Homo sapiens is the scientific name for humans, where Homo refers to the ______ and sapiens refers to the ______ name.

Accepted Answer

genus, species

Question 2

Which of the following is generally consistent among living organisms?

Accepted Answer

Structure and function of DNA

Question 3

Which of the following is at the most complex level of organization among the others?

Accepted Answer

biosphere

Question 4

What invention led to the discovery of the cell?

Accepted Answer

Microscope

Question 5

A ___ is an assumption made before any research has been done, whereas a ___ is a tested, well-substantiated, unifying explanation for a set of verified and proven factors.

Accepted Answer

hypothesis; theory

Question 6

Why are noncovalent interactions crucial for enzyme function?

Accepted Answer

They allow reversible binding and stabilization of the substrate for catalysis

Question 7

How many hydrogen bonds can be formed by a single water molecule?

Accepted Answer

Four

Question 8

A covalent bond is formed by _____ of electrons between atoms.

Accepted Answer

sharing

Question 9

Identify the right sequence of chemical bond strength from strongest to weakest.

Accepted Answer

Ionic > Covalent > Hydrogen > Van der Waals

Question 10

Which of the following mixtures allows the water molecules to form a hydration shell?

Accepted Answer

Salt and water

Question 11

Low pH is equivalent to a ___ concentration of protons and high pH means ___ concentration of protons.

Accepted Answer

high; low

Question 12

How do antacids such as sodium bicarbonate give relief from Gastroesophageal reflux disease?

Accepted Answer

It increases the stomach's pH and neutralizes stomach acid.

Question 13

Water has a ___ heat-absorbing capability due to __________ between individual water molecules, which is first disrupted by primary energy inputs and only then is the temperature raised.

Accepted Answer

high, hydrogen bonding

Question 14

How many hydrogen bonds does each water molecule form in the crystalline lattice of ice?

Accepted Answer

Four

Question 15

A hydroxyl functional group is represented by:

Accepted Answer

-OH

Question 16

Identify which of the following molecules is a polysaccharide.

Accepted Answer

All of the above

Question 17

How many glucose molecules are present in a polymer of glucose with molecular formula $C_{12}H_{22}O_{11}$?

Accepted Answer

02 (since $C_{12}H_{22}O_{11}$ is the formula for maltose, which is a disaccharide of glucose)

Question 18

What type of monomer makes up a nucleic acid?

Accepted Answer

nucleotide

Question 19

_______ fatty acids have single carbon-carbon bonds in their hydrocarbon backbones, whereas _______ fatty acids have double carbon-carbon bonds.

Accepted Answer

Saturated; unsaturated

Question 20

Which of the following is not metabolized to generate energy?

Accepted Answer

Vitamins

Core Concepts in General Biology: Classification, Chemistry, and Biological Molecules

Study Guide - Practice Questions

Study Guide - Flashcards