wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

LEMIDTERMREVIEW

Total questions: 101

Worksheet time: 1hrs 12mins

Name
Class
Date
1.
Which two organelles below would interact with each other to maintain homeostasis in a cell?
a)
nucleus and vacuoles
b)
nucleus and ribosomes
c)
ribosomes and lysosomes
d)
ribosomes and vacuoles
2.
An enzyme is added to starch and then a glucose indicator is added to
a)
measure the amount of fat
b)
determine if digestion happened
c)
see if there is any protein present
d)
deactivate the enzyme
3.
A hypothesis that does not support the data is still valuable because it
a)
may lead to further investigation
b)
can be changed to make the data right
c)
an opinion
d)
the volunteers who participated think it is correct
4.
This variable in an experiment is the one being changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
5.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
6.
Dependent variable means
a)
the scientist controls what to test
b)
educated guess
c)
ask a question
d)
what is being measured
7.
If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?
a)
increase the amount of iron in your blood
b)
spinach you eat
8.
stiff, protective outer layer of plant cells
a)
cell membrane
b)
nuclear membrane
c)
cell wall
d)
cytoplasm
9.
Amino acids link together to form proteins. In which organelle would this process occur?
a)
Lysosome
b)
Ribosome
c)
Centriole
d)
Mitochondria
10.
Controls what enters/leaves a cell
a)
cell membrane
b)
Nuclear membrane
c)
cell wall
d)
cytoplasm
11.
Cellular Respiration's goal is to
a)
make water
b)
make ATP
c)
make glucose
d)
make  oxygen
12.
In photosynthesis ...
a)
water is chloronated
b)
light energy is changed to glucose
c)
osmosis happens
d)
ATP is made
13.
What is cellular respiration?
a)
the breakdown of glucose  to release ATP
b)
the breakdown of glucose to release NADH
c)
the breakdown of glucose to release FADH
d)
the breakdown of glucose to release carbon
14.
What are the products of photosynthesis?
a)
sugar and glucose
b)
carbon dioxide 
c)
sugar and Oxygen
d)
water and energy
15.

What helps photosynthesis and respiration reactions occur at a faster rate?

a)

DNA

b)

enzymes

c)

pyruvic acid

d)

carbohydrates

16.
Enzymes are considered to be 
a)
Lipids
b)
Carbohydrate
c)
Protein
d)
Nucleic Acid
17.
Where do substrates bind on an enzyme?
a)
voltage-gated channels
b)
surface receptor
c)
calcium channels
d)
active site
18.
What is structure A?
a)
Substrate
b)
Active site
c)
Enzyme
d)
Products
19.
What is structure D?
a)
Substrate
b)
Active site
c)
Enzyme
d)
Products
20.
What is structure E, F, G?
a)
Substrate
b)
Active site
c)
Enzyme
d)
Products
21.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
22.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
23.
What is the name for the mechanism of enzyme activity?
a)
Lock and key
b)
jigsaw puzzle
c)
hammer and nail
d)
two hands pattern
24.
The "lock and key hypothesis" attempts to explain the mechanism of?
a)
Vacuole formation
b)
Pinocytosis
c)
Sharing of electrons
d)
Enzyme specificity 
25.
Based on the graph, what is the optimal temperature for this enzyme? 
a)
15oC
b)
40oC
c)
30oC
d)
35oC
26.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered denature
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
27.
Which of these is NOT true?
a)
Enzymes can denature (change shape) when the temperature gets too high.
b)
Enzymes can only be used once in a chemical reaction. 
c)
Extreme pH can denature enzymes.
d)
Enzymes speed up chemical reactions. 
28.
Which is NOT true?
a)
Enzymes speed up chemical reactions.
b)
Enzymes react best at a specific temperature.
c)
Enzymes only control ONE type of reaction.
d)
Enzymes are made of fatty acids.
29.
What is another name for enzymes?
a)
chemical catalysts
b)
microorganisms
c)
biological catalysts
d)
inorganic catalysts
30.
The pH at which an enzyme is most efficient is called the _________ pH of an enzyme.
a)
neutral
b)
optimum
c)
minimum
d)
experimental 
31.
Failure to maintain homeostasis could result in:
a)
lack of internal balance
b)
eventual death
c)
difficulty carrying on metabolism 
d)
all three
32.

The major function of the cell membrane is _

a)

selective permeability

b)

permeability

c)

impermeability

33.

If a solute is moving down its concentration gradient what does this mean?

a)

It is moving from high concentration to low concentration

b)

It is moving from low concentration to high concentration

c)

It is moving towards an area of opposite charge

d)

It is moving towards an area of the same charge

34.
What is diffusion?
a)
when molecules move 
b)
when molecules move from a high concentration to a low.
c)
no movement 
d)
molecules move everywhere
35.
What a cell needs to transport particles by active transport?
a)
Sun
b)
Wind
c)
Energy
d)
Channels
36.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
37.
A person would never have pure water put into their veins in a hospital because their cells would...
a)
Shrink/Dehydrate
b)
Expand
38.
A person should never drink salty water because their cells would
a)
shrink
b)
expand
39.
If there is 5 percent water inside a cell and 5 percent water outside a cell
a)
more water will move inside the cell
b)
more water will move outside the cell
c)
There will be no movement of water cells
40.
The movement of molecules against a concentration gradient
a)
simple diffusion
b)
facilitated diffusion
c)
active transport
d)
osmosis
41.
The picture is an example of...
a)
active tranport
b)
passive transport
c)
diffusion
d)
osmosis
42.

Identify the substance/molecule that will not diffuse.

a)

Starch

b)

Glucose

c)

Iodine

43.

Identify the substance(s)/molecule(s) that will diffuse.

a)

Starch

b)

Glucose

c)

Iodine

44.

Identify the substance that was added to the outside of the plant cells that caused the change observed.

a)

salt water

b)

fresh water

c)

distilled water

d)

glucose

45.

Identify which molecule is diffusing into the cell.

a)

A

b)

B

46.

Molecule A cannot diffuse. What is a possible reason why?

a)

Molecule A is a macromolecule and it is too large to move.

b)

Molecule A is a building block and it is too large to move.

c)

Molecule A is a building block and it is too small to move.

d)

Molecule A is a macromole and it is too small to move.

47.

Which of the following is a organic macromolecule?

a)

starch

b)

glucose

c)

amino acid

d)

nucleotide base

48.

The following image shows a plant cell in a normal environment. Which picture shows what a plant cell would like if salt was added to the outside?

a)
b)
49.

What is the starch indicator?

a)

Iodine

b)

Bromothymol Blue

c)

Benedict's Solution

d)

Glucose

50.

Which choice accurately describes what happened in steps A and B?

a)

Step A added saltwater so the water diffused out. Step B added freshwater so water diffused in.

b)

Step A added saltwater so the water diffused in. Step B added freshwater so water diffused out.

c)

Step A added freshwater so the water diffused in. Step B added saltwater so water diffused out.

d)

Step A added freshwater so the water diffused out. Step B added saltwater so water diffused in.

51.

What color does the starch indicator turn when it comes in contact with starch?

a)

blue-black

b)

blue

c)

orange-red

d)

yellow

52.
The process used to split polymers; this is done by adding water
a)
Dehydration
b)
Hydrolysis
c)
Enzomatic
d)
Tetratonic
53.
The process/reaction used to link compounds/monomers together.  Releases water.
a)
Dehydration
b)
Hydrolysis
c)
Enzomatic
d)
Tetratonic
54.
Base your answers on the graph and your knowledge of biology.
Neither enzyme works at a pH of
a)
1
b)
5
c)
3
d)
13
55.
Two examples of carbohydrates are
a)
fatty acids and glycerol
b)
fats and waxes
c)
sugars and starches
d)
amino acids and alcohol
56.
The graph below shows atmospheric carbon dioxide levels since the year 1880.Which of the following conclusions can be drawn from this graph
a)
 Atmospheric carbon dioxide levels are responsible for global temperature change.
b)
 Atmospheric carbon dioxide levels have been rising at about the same rate for the past century.
c)
Atmospheric carbon dioxide levels have remained the same over the past century.
d)
 Atmospheric carbon dioxide levels have been rising at an increasingly higher rate as the past century has progressed.
57.
Carmen conducted an experiment to determine if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. Each person listened to seven different selections of music for 30 seconds each. Each person’s pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person’s pulse rate changed when the person listened to different types of music.  Which component is missing from Carmen’s experiment?
a)
a question
b)
a hypothesis
c)
a control group
d)
a description of the experiment
58.
In order to be accepted, a scientific theory must be
a)
 widely tested and supported by extensive data
b)
 based on the results of a single experiment
c)
 controversial and cause debate
d)
 in line with all previous historical ideas
59.
An experiment was carried out to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of two groups of people at rest were measured. Group A was then given caffeinated soda and group B was given caffeine-free soda. One hour after drinking the soda, the pulse rates were measured. The participants in the experiment were all the same age, and they were all given the same amount of soda. The dependent variable in this experiment is the
a)
type of soda given to each group
b)
amount of soda given to each group
c)
 pulse rate of each group
d)
age of participants in each group
60.

A 7-pound baby becomes a 180-pound man

a)

Excretion

b)

Respiration

c)

Metabolism

d)

Growth

61.

A person sweats to keep body temperature at a safe level

a)

Nutrition

b)

Digestion

c)

Homeostasis

d)

Circulation

62.

Waste products are eliminated during perspiration.

a)

Circulation

b)

Homeostasis

c)

Excretion

d)

Metabolism

63.
Melanoma is a type of cancer in which abnormal skin cells divide uncontrollably. Some chemotherapy drugs, which stop the growth of the cancer, directly interfere with the process of
a)
meiosis 
b)
coordination
c)
mitosis
d)
 recombination
64.
The diagram represents cellular growth that can occur in human skin after prolonged exposure to ultraviolet light.
Which statement provides a possible explanation for this growth pattern?  
a)
Exposure to light stimulated the development of cells containing ozone.
b)
Manipulation of genes caused the movement of embryonic skin cells.
c)
Cancer and uncontrolled mitotic division occurred as a result of gene mutations. 
d)
An immune reaction triggered the formation of excess blood cells.
65.
Students in a science class took their pulse rates before and after they ran in place for one minute. The class data showed that pulse rates increased with exercise. A graph of the data would look most like (SEE DIAGRAM)
a)
1
b)
2
c)
3
d)
4
66.
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
67.
a fish
a)
bitoic
b)
abiotic
68.
a rock
a)
biotic
b)
abiotic
69.

A living thing that is made up of organ systems.

a)

cell

b)

tissue

c)

organ

d)

organ system

e)

organism

70.

2 or more different kinds of tissues that work together.

a)

cell

b)

tissue

c)

organ

d)

organ system

e)

organism

71.

The smallest unit of a living thing

a)

cell

b)

tissue

c)

organ

d)

organ system

e)

organism

72.

2 or more different kinds of tissues that work together.

a)

cell

b)

tissue

c)

organ

d)

organ system

e)

organism

73.

2 or more organs that work together.

a)

cell

b)

tissue

c)

organ

d)

organ system

e)

organism

74.

Groups of similar cells that work together.

a)

cell

b)

tissue

c)

organ

d)

organ system

e)

organism

75.
Stores materials such as water, salts, proteins, & carbohydrates.
a)
ribosome
b)
lysosome
c)
vacuole
d)
endoplasmic reticulum
76.
 Many tiny cell structures located within the cell  
a)
Nucleus
b)
Lysosome
c)
Ribosomes
d)
Organelle
77.
Thin strands of genetic material that fill the nucleus, contains information for directing a cell’s function
a)
Cell membrane
b)
Chloroplasts
c)
Vacuole
d)
Chromatin
78.
___________ have 2 functions in the cell membrane.
1.) They act like gatekeepers, only let certain things in. 
2.) Enzyme receptors embedded in the membrane.
a)
Carbohydrates 
b)
Proteins 
c)
Phospholipids 
d)
Cholesterol
79.

Which type of membrane protein would help intake a message from outside of the cell to inside of the cell?

a)

Receptor Protein

b)

Enzymatic Protein

c)

Channel Protein

d)

Junction Protein

e)

ATP Synthase

80.
What is a gene?
a)
An entire chromosome that  codes for a trait
b)
a piece of clothing
c)
a piece of a DNA on chromosome that codes for a trait
d)
Chemical messengers in your brain that code for a trait
81.
The function of _____ is to transport amino acids in the cytoplasm to the ribosome.
a)
rRNA
b)
tRNA
c)
mRNA
d)
DNA
82.
The process of going from DNA to mRNA is called
a)
Transcription
b)
Translation
c)
Transportation
d)
Transient
83.
The process where DNA is transcribed to mRNA happens in what part of the cell?
a)
Nucleus
b)
Mitochondria
c)
Cytoplasm
d)
Endoplasmic Reticulum
84.
The function of ______ is to combine with proteins to form ribosomes.
a)
rRNA
b)
tRNA
c)
mRNA
d)
DNA
85.
The process where mRNA is read and made into an amino acid chain.
a)
Transcription
b)
Translation
c)
Transportation
d)
Transient
86.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
87.
What is the mRNA strand that would result from the DNA template strand CCTA?
a)
GGAT
b)
CCAT
c)
GGAU
d)
CCAU
88.
Which of these nitrogenous bases is NOT in RNA?
a)
Uracil
b)
Thymine
c)
Cytosine
d)
Guanine
89.
Any change in the sequence of DNA is...
a)
transgenic shift
b)
Single Genotype
c)
Monohybrid Trait
d)
Mutation
90.
Which change below would result in a different Amino Acid? 
3'-GCT-5'
a)
GTT
b)
TCT
c)
TCC
d)
GCA
91.
Where do mutations occur?
a)
DNA and RNA
b)
DNA 
c)
RNA
d)
mRNA and tRNA
92.
mutations cause changes in traits because?
a)
mutations affect nucleosynthesis 
b)
Mutations affect gamete production 
c)
mutation affect meiosis
d)
mutations affect protein synthesis
93.

The control center of the cell is the ________

a)

cell membrane

b)

nucleus

c)

mitochondria

d)

chloroplast

94.

Inside the nucleus of cells, you can find ________; the “instructions for life”

a)

nuclear membrane

b)

chromosomes

c)

mitosis

d)

mitochondria

95.

A human haploid cell (gamete, sex cell) has ________ chromosomes; half the number of a human diploid cell

a)

1

b)

10

c)

23

d)

46

96.

Mitosis turns a single parent cell into ____ new cells

a)

0

b)

1

c)

2

d)

4

97.

The diploid chromosome number in the Indian elephant was found to be 2n=56. How many chromosomes would the elephant’s gamete possess?

a)

0

b)

28

c)

56

d)

112

98.

Mitosis creates daughter cells which are genetically identical to the parent cell

a)

True

b)

False

99.

Asexual reproduction like mitosis produces

a)

Two offspring cells with the same genetic material as the parent cell.

b)

Two offspring cells with half genetic material as the parent cell.

c)

Four offspring cells with the same genetic material as the parent cell.

d)

Four offspring cells with half the genetic material as the parent cell.

100.
Fermentation involves
a)
aerobic respiration
b)
anaerobic respiration 
101.
Why is yeast used to bake bread? 
a)
The waste gas, CO2, makes bread rise
b)
The alcohol produced makes bread dangerous
c)
The yeast consumes O2, causing bread to rise

Similar Resources on Wayground

State Science Test Review

98 questions

State Science Test Review

quiz

Worksheet

•

8th Grade

The Universe, Gravity, Mass and Tides

99 questions

The Universe, Gravity, Mass and Tides

quiz

Worksheet

•

6th - 8th Grade

Review Questions for Earth, Moon, Sun, and Solar System

100 questions

Review Questions for Earth, Moon, Sun, and Solar System

quiz

Worksheet

•

6th - 8th Grade

23.24 Unit 2 Review

100 questions

23.24 Unit 2 Review

quiz

Worksheet

•

9th Grade

Agriscience Complete - Final Exam Review

100 questions

Agriscience Complete - Final Exam Review

quiz

Worksheet

•

9th Grade

8th Q2 Exam Study Guide

106 questions

8th Q2 Exam Study Guide

quiz

Worksheet

•

8th Grade

All Units : Vocabulary Jumble

99 questions

All Units : Vocabulary Jumble

quiz

Worksheet

•

8th Grade

Unit 8 Test REVIEW

100 questions

Unit 8 Test REVIEW

quiz

Worksheet

•

9th Grade