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lab Macromolecules

Total questions: 24

Worksheet time: 19mins

Name
Class
Date
1.

what are macromolecules

a)

found in living organisms 5 or more carbon atoms. Has ring or chain form.

b)

Biomolecules

c)

Large molecules

d)

All are correct

2.
Identify the macromolecule in the picture.
* look at the R.....
a)
carbohydrates
b)
lipids
c)
proteins 
d)
nucleic acids
3.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
4.

What is DNA made of?

a)

Deoxyribose, thymine, adenine,cystosine and guanine

b)

Ribose,adenine, cytosine, guanine

c)

All of these

d)

Only Protein

5.

What is RNA made of?

a)

Deoxyribose, Ribose adenine,thymine

b)

Ribose, Uracil, adenine,cytosine, and guanine

c)

All of these

d)

Ribose, adenine, cystosine and thymine

6.

A biuret test...

a)

turns violet in the presence of proteins and short peptides that contains NaOH(SodiumHydroxide) and CuSO(CopperSulfate)

b)

turns blue in the presence of proteins and short peptides

c)

turns violet in the presence of monosacharides

d)

turns violet in the presence of lipids

7.

What is a peptide?

a)

A bond between amino acids and nucleic acid

b)

A bond between 2 proteins

c)

A building block for protein

d)

A bond between 2 amino acids

8.

Whats Amino Acid?

a)

Basic unit of protein

b)

Basic unit of DNA

c)

The basic unit of carbohydrates

d)

basic form of lipids

9.

Lugols Iodine

a)

test for carbohydrates indicates presence of lipids

b)

test for proteins

c)

test for carbohydrates indicates the presence of starch

d)

test for carbohydrates

10.

Reducing sugars

a)

monosaccharides or disaccharides that have a free aldehyde group

b)

-CHO

c)

they can be oxidized

d)

All of these

11.

Benedicts Solution

a)

detects reducing simple sugar

b)

detects starches, lipids and proteins

c)

detects reducing starches

d)

all of these

12.

Polysaccharide

a)

Monosaccharides linked to form along chain.

b)

starch, glycogen, cellulose

c)

consist of more than 2 units

d)

all of these

13.

A disaccharide

a)

consist of 2 monosacchrides

b)

are joined by a covalent bond

c)

are maltrose and lactose

d)

all of these

14.

which is the basic building block for carbohydrates

a)

monosaccharides

b)

cellulose

c)

maltose

d)

all of these

15.

which provides substrates for cellular respiration

a)

carbohydrates

b)

amino acids

c)

proteins

d)

all of these

16.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
17.
DNA and RNA are examples of 
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
18.
You are analyzing a compound in the laboratory. You find that it is made up of carbon, hydrogen, and oxygen in a ratio of two hydrogen atoms for each carbon atom. How will you classify the compound?
a)
lipid
b)
protein
c)
carbohydrate
d)
nucleic acid
19.
Fats, oils and cholesterol are all types of what?
a)
cell membranes
b)
hormones
hormones
c)
lipids
d)
fatty acids
20.
DNA and RNA are examples of 
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
21.
Which major macromolecule is being represented in this image? 
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
22.

Sudan III

a)

hydrophobic; orange color spots for positive proteins

b)

hydrophobic: orange color spots for positive starch

c)

hydrophobic; orange color spots negative for lipids

d)

hydrophobic; orange color positive for lipids

23.

A polymer that consist of glycerol molecule combined with fatty acids

a)

starch

b)

triglyceride

c)

cellulose

d)

maltose

24.

Biomolecules that are essential for life

a)

lipids

b)

carbohydrates

c)

proteins and nucleic acids

d)

all of these

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