Unit 2 Biology Review

Which substance is classified as an inorganic compound?

• Water

• Glucose

• Fat

• Protein

Tags

NGSS.MS-PS1-1

A chain of chemically bonded amino acid molecules forms a compound called a

• lipid

• monosaccharide

• nucleotide

• protein

Tags

NGSS.HS-LS1-6

Which element is NOT part of a disaccharide?

• carbon

• nitrogen

• oxygen

• hydrogen

Which molecule is the primary source of energy for animals?

• proteins

• carbohydrates

• lipids

• DNA

Tags

NGSS.MS-LS1-7

Cells use lipids for

• insulation, storage, and cell membranes

• building proteins using amino acids

• keeping bones hard

• nucleic acid synthesis

Which of the following would provide the quickest energy for an athlete?

• A McDonald's quarter pounder with proteins

• A large apple which contains a lot of acids

• A dish of cottage cheese with hardly any sugar

• A large plate of spaghetti which contains starch

The compound HCl releases hydrogen ions (H+) in water. What type of compound is HCl?

• An acid

• a base

• a buffer

• a salt

An organic compound in which carbon, hydrogen, and oxygen are present in a 1:2:1 ration is called a

• fat

• protein

• nucleic acid

• carbohydrate

The chemical element most important in organic substances is

• calcium

• carbon

• oxygen

• nitrogen

Tags

NGSS.HS-LS1-6

The particles which revolve around the nucleus of an atom, are negatively charged and are responsible for the bonding activity of atoms are:

• neutrons

• protons

• electrons

• ions