Biochem Test Prep- Speece

A string of amino acids builds a polymer called a

• monosaccharide.

• polypeptide/protein

• nucleotide.

• lipid.

Tags

NGSS.HS-LS1-1

This type of molecule is the MOST common energy source for all cells and enters the cell by facilitated diffusion. The molecule is

• DNA.

• a lipid.

• glucose/carb

• a protein.

Which food reacted with iodine to give a positive test result? Using the following table, answer the questions below.

• A

• B

• C

• D

Tags

NGSS.MS-PS1-2

All living things use nitrogen to

• reproduce.

• make sugar.

• make proteins.

• transport water.

In cells, hydrogen peroxide is converted to water and oxygen through the activity of

• enzymes.

• fats.

• lipases.

• pigments.

All organic molecules contain the element

• calcium.

• nitrogen.

• carbon.

• argon.

Tags

NGSS.HS-LS1-6

NGSS.HS-LS2-5

The two types of nucleic acids are

• lipids and sugars.

• glucose and glycogen.

• hormones and glycogen.

• DNA and RNA.

Which food reacted with both Benedict's reagent and Biuret reagent? Using the following table, answer the questions below.

• A

• B

• C

• D

Tags

NGSS.MS-PS1-2

You and a group of friends are spending your vacation hiking through the mountains. It is cold in the mountains. You will be expending a lot of energy while hiking and you will need plenty of energy to help keep you warm. You should pack foods high in _______ to provide the most energy or kilocalories per gram of food.

• carbohydrates

• lipids (fats)

• proteins

• sugars

What happens to an enzyme after optimum conditions have been reached?

• It falls asleep.

• It becomes denatured and functions better.

• It becomes denatured, loses its shape, and cannot catalyze the reaction.

• It becomes denatured, maintains its shape, and continues to catalyze the reaction.