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BIO 101 Lab 4

Total questions: 58

Worksheet time: 58mins

Name
Class
Date
1.

Which compound is organic?

a)

C6H12O6

b)

CO2

2.

Which compound is inorganic?

a)

SO4

b)

C2HON2

3.

What type of molecules contain both carbon and hydrogen and uses covalent bonds?

a)

organic molecules

b)

inorganic molecules

4.

What type of molecules contain C or H or neither, but never both at the same time. Examples are CO2, H2O, NaCl and HCl?

a)

organic molecules

b)

inorganic molecules

5.

What are the building blocks of carbohydrates?

a)

monosaccharides and some disaccharides

b)

polysaccharides

c)

fatty acids

d)

glycerol

e)

amino acids

6.

What are the building blocks of lipids? Select more than 1 answer!

a)

monosaccharides and some disaccharides

b)

polysaccharides

c)

fatty acids

d)

glycerol

e)

amino acids

7.

What are the building blocks of proteins?

a)

monosaccharides and some disaccharides

b)

polysaccharides

c)

fatty acids

d)

glycerol

e)

amino acids

8.

What are the components of nucleotides, the building blocks of nucleic acids? Select 3 answers!

a)

phosphate group

b)

pentose sugar

c)

nitrogenous base

d)

monosaccharides

e)

amino acids

9.

Why are we using Benedict's Solution?

a)

To indicate the presence of drugs.

b)

To indicate the presence of simple sugars found in carbohydrates.

c)

To indicate the presence of proteins found in carbohydrates.

d)

To turn the solution in the test tube a different color.

10.

When large amounts of glucose is present Benedicts turns...

a)

purple

b)

blue-black

c)

brick-red

d)

green

11.

A negative test for glucose will cause Benedicts to stay...

a)

brick red

b)

blue

c)

black

d)

orange

12.

How could we test for starches?

a)

Benedict's reagent

b)

Biuret's reagent

c)

Lugol's solution

d)

Paper bag

13.

Solution that turns from brown to black/purple when mized with starch

a)

Benedicts solution

b)

Lugol's iodine solution

c)

Starch Solution

d)

Glucose solution

14.

Which reagent is used to test for lipids?

a)

iodine solution

b)

Benedict's solution

c)

Biuret solution

d)

Sudan IV solution

15.
Which biomolecule is this lab testing for?
a)
simple carbohydrate (monosaccharide)
b)
complex carbohydrate (polysaccharide)
c)
protein
d)
lipid
16.
Tara conducted several tests on a mystery solution.  Her results were as follows:
*Biuret's = purplish/violet; *Benedict's = orange;  *Sudan III = yellow; *Iodine = black.
Which biomolecules were present in the mystery solution?
a)
protein & carbohydrate
b)
protein & lipid
c)
carbohydrate & lipid
d)
protein, carbohydrate, & lipid
17.

Which test tube shows positive results for lipids (sudan IV)?

a)

left

b)

right

18.

I am used to test for the presence of protein

a)

Benedict's Test

b)

Biurets Test

c)

Iodine Test

d)

Ethanol Emulsion Test

19.

If I am positive, I will turn purple

a)

Benedict's Test

b)

Biurets Test

c)

Iodine Test

d)

Ethanol Emulsion Test

20.

Many land plants store energy in starch. When energy is needed, the starch molecules can be broken down quickly. Starch is which of the following molecules?

a)

amino acid

b)

lipid

c)

polysaccharide

d)

RNA chain

21.

What type of macromolecule functions as a quick energy source for animals or as a structural component (like ribose, part of RNA)?

a)

carbohydrate

b)

lipid

c)

protein

d)

nucleic acid

22.

Which of the following groups can be classified as carbonyls?

a)

aldehydes

b)

ketones

c)

esters

d)

aldehydes and ketones

23.

This functional group has C=O at the end of an organic chain:

a)

aldehyde

b)

ketone

c)

carboxylic acid

d)

both aldehyde and carboxylic acid

24.

This functional group has C=O in the middle of an organic chain:

a)

aldehyde

b)

ketone

c)

carboxylic acid

d)

both aldehyde and carboxylic acid

25.
An experiment for a new asthma medication was set up into two groups. Group one was given the new drug for asthma, while group 2 was given a sugar pill. The sugar pill serves as a 
a)
control
b)
dependent variable 
c)
experimental variable
d)
constant
26.
The measurable factor in an experiment is known as the: 
a)
Control
b)
Independent Variable
c)
Constant
d)
Dependent Variable
27.
 In a controlled experiment, the variable that is changed to test the hypothesis is called the –
a)
Controlled Variable
b)
Responsive Variable
c)
Dependent Variable
d)
Independent Variable
28.
Which of these is a lipid?
a)
triglycerides
b)
steroids
c)
fatty acids
d)
all of the above
29.
What creates a steroid?
a)
4-fused carbon rings
b)
3-fused hydrogen chains
c)
2-fused oxygen molecules
d)
1 carboxyl group
30.
Lipids are found in every cell on Earth. Which part of the cell do lipids make up?
a)
cell nucleus
b)
cell vacuole
c)
cell membrane
d)
cell golgi body
31.
Which of the following is a characteristic of lipids?
a)
They are polar molecules.
b)
They are nonpolar molecules.
c)
They dissolve in water.
d)
They are hydrophilic.
32.
Which of the following is NOT a function of lipids?
a)
long term energy
b)
provides flavor in food
c)
used to make hormones
d)
building of muscles
33.
Which specific lipid has the following characteristics:
1. Makes up the cell membrane
2. Has a polar, hydrophilic head
3. Has 2 non-polar, hydrophobic tails
a)
waxes
b)
phospholipids
c)
steroids
d)
triglycerides
34.
What does hydrophobic mean?
a)
the fear of water
b)
the fear of hydrogen
c)
the love of water
d)
the love of hydrogen
35.
This picture shows what type of lipid?
a)
unsaturated fat
b)
wax
c)
saturated fat
d)
steroid
36.
A "kinky structure" due to the double bonds between carbon atoms creates a lipid known as what?
a)
saturated fat
b)
wax
c)
steroid
d)
unsaturated fat
37.
Saturated fats are _____ at room temperature.
a)
solids
b)
gases
c)
liquids
d)
non of the above
38.
Saturated fats have this type of structure:
a)
kinky with double bonds between carbons
b)
4-fused carbon rings
c)
straight with single carbon bonds
d)
rectangular with triple carbon bonds
39.
What is a protein: 
a)
A polymer composed of many sugars.
b)
A polymer composed of many amino acids. 
c)
A polymer composed of fatty acids. 
d)
A polymer composed of nucleotides. 
40.
What is a peptide bond?
a)
Bond that holds two amino acids together.
b)
A bond that holds hydrogen and oxygen molecules together.
c)
A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.
d)
A bond that is formed by the sharing of electrons.
41.
Which of the following is NOT a function of proteins
a)
Assist in blood clotting
b)
Fight infections and diseases
c)
Assist in the processing of glucose
d)
None of the above
42.
What is the monomer of proteins?
a)
amino acids
b)
polypeptides
c)
nucleotides
d)
monosaccharides
43.
Which macromolecule is this?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
44.
DNA and RNA are examples of...
a)
proteins
b)
nucleic acids
c)
carbohydrates
d)
lipids
45.
What is the function of nucleic acids?
a)
Stores energy
b)
Stores genetic information
c)
Movement
d)
Physical structure
46.
What is the monomer of nucleic acids?
a)
Glycerol
b)
Monosaccharides
c)
Amino Acids
d)
Nucleotides
47.
Which macromolecule is this?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
48.
Which macromolecule is shown?
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
49.
What is the function of ATP in living things?
a)
provides energy for cells
b)
stores genetic information
c)
provides structure in the nucleus
50.
Energy is released from ATP when
a)
a phosphate group is added
b)
adenine bonds to ribose
c)
ATP is exposed to sunlight
d)
a phosphate group is removed
51.
Which structures shown in the Figure make up the ADP molecule?
a)
A and B
b)
A, B and C
c)
A, B, C, and D
d)
C and D
52.
What are the parts of the ATP molecule?
a)
adenine, thylakoids, stroma
b)
stroma, grana, chlorophyll
c)
adenine, ribose, phosphate groups
d)
NADH, NAHPH, FADH
53.

What are the two main types of research that scientists perform? Choose 2 answers!

a)

observational research

b)

hypothesis testing

c)

data research

d)

mechatronics

54.

Which type of research has scientists describing new organisms or using new techniques to investigate organisms?

a)

observational research

b)

hypothesis testing

55.

What part of a scientific journal is where the scientist explains what the study was about and why it is important?

a)

introduction

b)

materials and methods

c)

results

d)

discussion

56.

What part of a scientific journal has the design of the experiment with the hypothesis?

a)

introduction

b)

materials and methods

c)

results

d)

discussion

57.

What part of a scientific journal has the data featured in tables and graphs?

a)

introduction

b)

materials and methods

c)

results

d)

discussion

58.

What part of a scientific journal has the interpretation of the results and what it means in the "big picture"?

a)

introduction

b)

materials and methods

c)

results

d)

discussion

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