Macromolecules Put your names at the bottom of your board Draw a box in the upper right corner to...

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Transcript of Macromolecules Put your names at the bottom of your board Draw a box in the upper right corner to...

MacromoleculesPut your names at the bottom of your boardDraw a box in the upper right corner to keep

scoreQuietly write your answer on the white board

and keep it from roaming eyesWhen I say- hold your board up for me to

review (if you are still writing after I say then your answer does not count)

Keep your own score- each question = 1 point unless otherwise instructed

Cheating will result in -5 on the actual assessment

1st place= +2; 2nd place = +1; 3rd place = +1

What are the 3 elements that are common in all ORGANIC substances?

Carbon, Hydrogen, Oxygen

How many chemical bonds can Carbon make with other elements?

four

What is the name of the process by which water is removed and

monomers are combined to form polymers?

Dehydration synthesis

Name a monomer of a carbohydrate.

Monosaccharide (either glucose, galactose,

fructose)

Name a macromolecule that can be used to provide energy for the human

body.

Carbohydrate or Lipid

Look at the image below. What type of macromolecule is pictured here?

Lipid (triglyceride)

2 point question:What are the two types of molecules that make up the molecule pictured

here:

Glycerol and fatty acid chains

Look at the fatty acid chains pictured. Are these fatty acids saturated or

unsaturated?

Saturated

List one characteristic of an unsaturated fat.

Double bonds within the carbon chainLiquid at Room TemperatureBent carbon chains“better” for you in diet

Provide on example of a food that contains saturated fat.

Meat, dairy….anything from an animal

Look at the image below. What is the name of this type of

monomer?

Nucleotide

Look at the image below. 3 points: Name the three parts of a

nucleotide.

Phosphate group, sugar, nitrogenous base

Which of the following polysaccharides is found in plants and

is used for storage in roots?STARCH, GLYCOGEN, CELLULOSE

STARCH

Which of the following polysaccharides is found in animals in

liver/muscles?STARCH, GLYCOGEN, CELLULOSE

GLYCOGEN

Which of the following polysaccharides can be broken down and used as energy for animals? (2

points for 2 answers)

STARCH, GLYCOGEN, CELLULOSE

STARCH & GLYCOGEN

The picture below is the monomer of proteins. What is it called?

Amino acid

If you wanted to break the peptide bond below, what process would you

have to do?

Hydrolysis

Which two macromolecule groups contain nitrogen? (2 points)

LIPIDS CARBOHYDRATES PROTEINS NUCLEIC ACIDS

Proteins & Nucleic Acids

What type of protein is used as a catalyst to speed up chemical

reactions?

An enzyme

2 points: Name 2 differences (be specific)

between DNA and RNA

DNA= deoxyribose, RNA= ribose

DNA= 2 strands, RNA = 1 strand

DNA= thymine, RNA = uracil

Why are nucleic acids important?

They determine who you are and what proteins your body

needs to make.

Look at the diagram of a phospholipid below. Draw how these would be

arranged if you found them in a cell membrane.

The function of a protein is dependent upon its shape.

What level of structure is pictured below?

Tertiary structure

When a protein changes shape and no longer works it is called

denaturing. List 2 things that can cause denaturation to occur. (2

points)

Drastic change in pHDrastic change in

temperatureUV light

What molecule is pictured below?

DNA (deoxyribonucleic acid)or

Nucleic acid

What kind of bonds hold the two strands in DNA together (between 2

base pairs)?

Hydrogen bonds

Using the letters A,C,U,G pair them up to show which bases will pair

together.

A—UG—C

If the nitrogenous bases found in a string of nucleotides contain A,C,U,G would you be looking at a strand of

DNA or RNA?

RNA- because it contains uracil and DNA doesn’t have

uracil

What type of macromolecule is pictured below?

Lipid (cholesterol)

List 2 characteristics of this molecule.

-acts as a chemical messenger-precursor to sex hormones-hydrophobic, nonpolar-is a lipid