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Unit 1 Test Review

Total questions: 79

Worksheet time: 43mins

Name
Class
Date
1.
A hypothesis is-
a)
a possible explanation of an observation that can be tested
b)
a proven statement
c)
a conclusive statement
d)
a definite answer to a possible problem
2.
The variable that is measured in the experiment is-
a)
the dependent variable
b)
the independent variable
c)
the control variable
d)
the hypothetical variable
3.
Which of the following must be done for the results of an experiment to be considered valid?
a)
the experiment must be repeated numerous times and the same results are obtained
b)
the results must be published in a national journal
c)
the results must be shown in a graph
d)
the results must be only quantitative
4.

Place the variables on the axis where they should be graphed:

a)

Dependent Variable

b)

Independent Variable

1
2
1)
2)
5.
This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 
a)
experimental group
b)
control group
c)
data
d)
variables
6.
This variable in an experiment is the one being deliberately changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
7.
Which type of data involves numbers that are obtained by counting or measuring?
a)
quantitative
b)
qualitative
8.
Which type of data involves descriptions that cannot be counted or measured?
a)
qualitative
b)
quantitative
9.
The summary at the end of an experiment that explains the results is... 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
10.
A testable prediction about a scientific investigation is a(n)
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
11.

True or False: Scientific research contains biased data.

a)

True

b)

False

12.

You are heating a piece of glass and now want to pick it up. You should

a)

use a rag or paper towels

b)

pick up the end that looks cooler

c)

use tongs

d)

pour cold water onit

13.

Long hair in the laboratory must be

a)

cut short

b)

held away from the experiment with one hand

c)

always neatly groomed

d)

tied back or kept entirely out of the way with a hair band, hairpins, or other confining device

14.

In the laboratory, the following should not be worn

a)

loose clothing

b)

dangling jewelery

c)

sandals

d)

all of the above

15.

The following footwear is the best in the laboratory

a)

sandals

b)

open-toed shoes

c)

closed-toe shoes

d)

shoes appropriate for the weather

16.

Horseplay or practical jokes in the laboratory are

a)

always against the rules

b)

okay

c)

not dangerous

d)

okay if you are working alone

17.

When you finish working with chemicals, biological specimens, and other lab substances, always

a)

treat your hands with skin lotion

b)

wash your hands thoroughly with soap and water

c)

wipe your hands on a towel

d)

wipe your hands on your clothes

18.

True or False: Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.

a)

True

b)

False

19.

True or False: Never remove chemicals or other equipment from the laboratory.

a)

True

b)

False

20.

True or False: Read all procedures thoroughly before entering the laboratory

a)

True

b)

False

21.

True or False: It’s okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.

a)

True

b)

False

22.

True or False: Work areas should be kept clean and tidy.

a)

True

b)

False

23.

True or False: Chipped or cracked glassware is okay to use.

a)

True

b)

False

24.
Identify the primary function of the lab equipment seen in the image.
a)
Mixing liquids
b)
Measuring liquid volume
c)
Mixing solids
d)
Measuring mass
25.
Identify the primary function of the lab equipment seen in the image.
a)
Transfer small amounts of liquid
b)
Transfer large amounts of liquid
c)
Measure liquid volume
d)
Mixing liquid chemicals
26.
Identify the piece of lab equipment seen in the image.
a)
Pipets
b)
Test Tubes
c)
Forceps
d)
Scoopulas
27.
A beaker is used to measure volume in which metric unit?
a)
Milliliters (mL)
b)
Grams (g)
c)
Meters (m)
d)
Kilograms (kg)
28.
To be read accurately, one must place a graduated cylinder on a flat surface and measure at the bottom of the _______________ curve.
a)
Centrifugal
b)
Capillary
c)
Meniscus
d)
Infinity
29.
Identify the piece of lab equipment seen in the image.
a)
Microviewer
b)
Dissecting Scope
c)
Microscope
d)
Electron Imager
30.
Identify the freezing point and boiling point of water.
a)
0°C ; 100°C
b)
32°F ; 212°F
c)
32°C ;100°C
d)
0°F ; 212°F
31.
What is this?
a)
Scalpel
b)
Forceps
c)
Scissors
d)
Dissection Tray
32.

When is it OK to eat or drink during a lab?

a)

always

b)

when my group is cleaning up

c)

never

d)

during lab procedures

33.

These objects are called...?

a)

metric ruler

b)

Celsius thermometer

c)

graduated cylinders

d)

pan balances

34.
a)

beaker

b)

graduated cylinder

c)

test tube

d)

metric ruler

35.

What is this?

a)

graduated cylinder

b)

flask

c)

test tube

d)

beaker

36.
What tool is used to measure temperature?
a)
meter stick
b)
thermometer
c)
balance
d)
spring scale
37.
What is measured with a graduated cylinder?
a)
Passage of time
b)
Distance from one thing to another
c)
Weight of an object
d)
Volume of liquid
38.

Using your prefixes and suffixes, BIOLOGY can be defined as

a)

science

b)

subject in school

c)

study of life

d)

study of growth

39.

The characteristics of life describe

a)

Living Organisms

b)

Nonliving Organisms

40.

What characteristic is shown: A giraffe gives birth to a healthy calf

a)

Reproduce

b)

Genetic Code

c)

Change Over Time

d)

Acquire and Use Energy

41.

Which characteristic is shown: An American alligator kills and eats a fish.

a)

Change Over Time

b)

Acquire and Use Energy

c)

Grow and Develop

d)

Made of Cells

42.

Which characteristic is shown: A corn field absorbs sunlight to produce food.

a)

Made of Cells

b)

Respond to a Stimulus

c)

Acquire and Use Energy

d)

Genetic Code

43.

Which characteristic is shown: A chocolate lab puppy becomes a fully grown dog.

a)

Respond to a Stimulus

b)

Grow and Develop

c)

Homeostasis

d)

Change Over Time

44.

Which characteristic is shown: A tadpole grows legs and becomes a fully grown frog.

a)

Homeostasis

b)

Grow and Develop

c)

Acquire and Use Energy

d)

Change Over Time

45.

Which characteristic is shown: A deer runs from a dog after hearing barking.

a)

Made of Cells

b)

Respond to a Stimulus

c)

Acquire and Use Energy

d)

Homeostasis

46.

Which characteristic is shown: A plant switches position and follows the sunlight throughout the day.

a)

Grow and Develop

b)

Respond to a Stimulus

c)

Acquire and Use Energy

d)

Reproduce

47.

Which characteristic is shown: Your body sweats to maintain body temperature.

a)

Respond to a Stimulus

b)

Homeostasis

c)

Made of Cells

d)

Change Over Time

48.

Which characteristic is shown: Carbon Dioxide is used in your blood to maintain the blood pH.

a)

Respond to a Stimulus

b)

Homeostasis

c)

Reproduce

d)

Grow and Develop

49.

Which characteristic is shown: A flower is shown to have a cell wall and other cellular organelles.

a)

Made of Cells

b)

Homeostasis

c)

Respond to a Stimulus

d)

Reproduce

50.

Stimulus is

a)

organisms that are made up of more than one cell

b)

a membrane-covered structure that contains all of the materials necessary for life.

c)

a change that affects the activity of an organism.

d)

the maintenance of a stable internal environment.

51.

Living things are based on a universal genetic

code. What molecule is responsible for that code?

a)

RNA

b)

Lipid

c)

Protein

d)

DNA

52.

True or False: Living things must be multicellular.

a)

True

b)

False

53.

True or False: Living things must contain all characteristics of life.

a)

True

b)

False

54.

An observable fact or event used to ask questions that lead to scientific experiments or explorations

a)

Phenomenon

b)

Hypothesis

c)

Stimuli

d)

Observation

55.
Viruses are...
a)
prokaryotic
b)
eukaryotic
c)
non-living
d)
endospores
56.
How does a virus cause a person to develop the common cold?
a)
invades the host cell to reproduce
b)
removes energy from the host cell
c)
produces toxins in the host cell
d)
protects the host cell from bacteria
57.
What is a host?
a)
Organism that lives on the cell and causes it harm 
b)
Something that causes harm to the cell 
c)
Cell that the virus invades and takes over
58.

Which two types of substances make up the nucleus of an atom?

a)

Electrons and Neutrons

b)

Protons and Neutrons

c)

Electrons and Protons

d)

None of these

59.

When an isotope is created, the number of which substance is changed?

a)

Protons

b)

Neutrons

c)

Electrons

d)

None of these

60.

Label the parts of an atom

a)

Electron

b)

Neutron

c)

Proton

1
2
3
1)
2)
3)
61.

Which type of chemical bonding SHARES electrons between elements?

a)

Ionic bonding

b)

Covalent bonding

c)

Hydrogen bonding

d)

Van der Waals forces

62.

Which type of chemical bonding TAKES electrons between elements?

a)

Ionic bonding

b)

Covalent bonding

c)

Hydrogen bonding

d)

Van der Waals forces

63.

How many groups are on the Periodic Table?

a)

7 groups

b)

9 groups

c)

16 groups

d)

18 groups

64.

Which property of water leads to an attraction between the SAME type of molecules?

a)

Cohesion

b)

Adhesion

c)

Density

d)

Solvency

65.

Which property of water leads to an attraction between DIFFERENT types of molecules?

a)

Cohesion

b)

Adhesion

c)

Density

d)

Solvency

66.

True or False: Ice is less dense than liquid water due to its crystalline structure.

a)

True

b)

False

67.

On the pH scale, acids can be found at which end of the scale?

a)

Lower numbers (0-6)

b)

Middle numbers (7)

c)

High numbers (8-14)

68.

On the pH scale, bases can be found at which end of the scale?

a)

Lower numbers (0-6)

b)

Middle numbers (7)

c)

High numbers (8-14)

69.

Decide whether the following liquids are acids or bases:

Categorize the following

Lemon juice

Tomato juice

Water

Vinegar

Bleach

Soap

Baking soda

Acid
Base
Neutral
70.

Match the following macromolecules to their composition:

a)

Carbohydrate

1.

CHO

b)

Lipid

2.

CHO

c)

Protein

3.

CHON

d)

Nucleic Acid

4.

CHONP

71.

​ (a)   are simple monosaccharides, such as sugars and starches, that are made up of CHO

Choose from the below words
carbohydrates
lipids
proteins
nucleic acids
72.

(a)   are fatty acids, such as fats and oils, that are made up of CHO

Choose from the below words
lipids
carbohydrates
proteins
nucleic acids
73.

(a)   are amino acids held together by peptide bonds made of CHON

Choose from the below words
proteins
carbohydrates
lipids
nucleic acids
74.

(a)   are essential to cells and viruses to express genetic information, such as DNA

Choose from the below words
nucleic acids
carbohydrates
lipids
proteins
75.

Match the following monomers to their polymers:

a)

Carbohydrates

1.

Monosaccharides

b)

Lipids

2.

N/A

c)

Proteins

3.

Amino acids

d)

Nucleic Acids

4.

Nucleotides

76.

What is "a biological catalyst that speeds up the rate of chemical reactions in a cell"?

a)

Protein

b)

Lipid

c)

Enzyme

d)

Atom

77.

What is the optimal pH for this enzyme?

a)

pH 3

b)

pH 6

c)

pH 7

d)

pH 11

78.

A non-competitive inhibitor will bond at which enzyme site to catalyze a reaction?

a)

Active site

b)

Allosteric site

79.

A competitive inhibitor will bond at which enzyme site to catalyze a reaction?

a)

Active site

b)

Allosteric site

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