Simple Biomolecules Review

All Carbohydrates are

• Sugars

• Fats

• Proteins

• DNA and RNA

Answer explanation

Terms -ose or -saccharide mean sugar/sweet. All Carbohydrates, even the unsweet kind, are sugars.

Tags

Carbs

Carbohydrates

Energy

Sugar

Biomolecule

Which biomolecules has the MOST calories per gram?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Answer explanation

Lipids (fats) contain the most calories. 9 calories for each gram.

Tags

Lipids

Biomolecule

Calories

Energy

Each type of molecule serves a different purpose.

This means that

• different structures serve the same functions

• different structures serve different functions

• same structures serve different functions

• same structures serve same functions

Answer explanation

The shape (structure) of a molecule is specific for its function. Two different molecules do not serve the same function.

Tags

biomolecule

carboydrate

structure

function

Which of the following is NOT a function of a protein

• builds muscles

• enzymes

• carries oxygen in blood

• main source of energy

Answer explanation

Carbohydrates are the main source of energy (quick energy)

Tags

Protein

Biomolecule

structure

function

Functions of Nucleic Acid are to

• store and carry genetic information

• direct protein synthesis

• build cell membranes

• serve as an energy source

Answer explanation

Nucleic Acids (DNA and RNA) contain genetic information and they direct the synthesis of Proteins.

Tags

Nucleic Acid

DNA

RNA

Biomolecule

Genetics

All fats are

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Answer explanation

All fats, oils, and waxes are Lipids

Tags

Lipids

Fats

Biomolecule

Runners load up on complex carbohydrates before a race because

• it serves as a long-term source of energy

• it serves as a main source of energy

• to provide enough quick energy for the race

• its quickly converted into fat

Answer explanation

Carbohydrates are needed to provide enough quick energy to complete the race

Tags

Carbohydrates

Energy

Marathon

Biomolecule

The cell membrane is made mostly of

• Carbohydrates

• Lipids

• Protein

• Nucleic Acid

Answer explanation

The cell membrane is composed mostly of lipids.

Tags

cell membrane

lipids

biomolecule

Which functions belong to proteins?

• speed up chemical reactions

• provides structure to the body

• stores genetic information

• long-term energy storage

Answer explanation

Proteins have many functions. They acts as enzymes to speed up chemical reactions and help build structures made from cells.

Tags

Protein

Structure

Function

Enzyme

Biomolecule

Lipids store _ _ _ _-term energy.

Type in: short or long

Answer explanation

Lipids store LONG-term energy and Carbohydrates store SHORT-term energy

Tags

lipids

energy

biomolecule