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LC2 Revision Whole Course

Total questions: 126

Worksheet time: 1hrs 17mins

Name
Class
Date
1.

Information recorded in your experiment which is used to draw a conclusion is called

a)

reliable

b)

data

c)

hypothesis

d)

observation

2.

Which of the following are an important reason to do repeated trials?

a)

reliable

b)

accurate

c)

valid results

d)

reliable, accurate, and valid results

3.

The change that is tested in an experiment.

a)

hypothesis

b)

data

c)

variable

d)

observation

4.

Uses your senses to gather information.

a)

observation

b)

variable

c)

hypothesis

d)

data

5.

The general steps used when conducting an experiment.

a)

observation

b)

variable

c)

hypothesis

d)

scientific method

6.

A written explanation of what you think will happen, an idea that is tested in an experiment, and may be proven to be true.

a)

observation

b)

variable

c)

hypothesis

d)

data

7.

Study of the natural world through observation and investigation.

a)

Science

b)

Hypothesis

c)

Experiment

d)

Flying monkeys

8.

A plan on how you will conduct your experiment

a)

Data

b)

Procedures

c)

Monkeys

d)

Hypothesis

9.

Is something that is kept the same, remaining unchanged in an experiment.

a)

Control

b)

Variable

c)

Data

d)

P, B, & J

10.

Is a procedure carried out under controlled conditions to test a hypothesis.

a)

Science

b)

Watching YouTube

c)

Experiment

d)

Hypothesis

11.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
12.

The information you collect while doing your experiment is called

a)

conclusions

b)

data

c)

hypotheses

d)

procedures

13.
The independent variable is the ONE thing you _____.
a)
change on purpose
b)
control or keep constant
c)
measure
14.

How many independent variables should you have in an experiment?

a)

two

b)

as many as possible

c)

four

d)

one

15.
Why do we want to test one variable at a time?
a)
Because it is hard to setup a data table with more
b)
To know what is causing the changes. This helps us understand cause and effect.
c)
It is what has always been done
16.

What is the best source of carbohydrates from the list?

a)

steak

b)

pasta

c)

butter

d)

lucozade

17.

Carbohydrates are made from the elements carbon, hydrogen, oxygen and nitrogen

a)

true

b)

false

18.

Why do we need protein in our diet?

a)

For energy

b)

To grow taller

c)

For growth and repair of muscles

d)

For strong bones and teeth

19.

What are the building blocks of protein?

a)

Concrete blocks

b)

Peptides

c)

Amino acids

d)

Poly peptides

20.

Which of the following assist in digestion by keeping movement and bulk in the stool?

a)

Monosaccharides

b)

Fiber

c)

Lipids

d)

Amino Acids

21.

Which vitamin is lacking when scurvy occurs

a)

Vitamin A

b)

Vitamin E

c)

Vitamin C

d)

Vitamin D

22.

What is ecology?

a)

the study of life

b)

the study of the interactions (connections) among living things, and between living things and their environment

c)

the study of fossils, embryos, homologous structures and how they are evidence of our evolution from a common ancestor

d)

the study of atoms, molecules, organelles and cells

23.

The frog eats the cricket. Give 3 words to describe the frog.

a)

primary consumer (1°), carnivore, autotroph

b)

secondary consumer (2°), herbivore, heterotroph

c)

primary consumer (1°), omnivore, heterotroph

d)

secondary consumer (2°), carnivore, heterotroph

24.

What is a population?

a)

groups of different species living in the same area

b)

group of the same species living in the same area

c)

includes all of the organisms and non-living things in an area

d)

major regional or global community

25.

What is a community?

a)

Different populations of organisms living in the same environment.

b)

One population of organism living in the same environment.

c)

Different populations of organisms living in more than two environments.

d)

One population of organism living in more than two environments.

26.

What is an ecosystem?

a)

The interactions among living and non-living things in an environment.

b)

A type of organism that can only be seen with a microscope.

c)

A bunch of moving parts that do work.

d)

The newest craze in social media.

27.

In an ecosystem, living things are called _ and non-living things are called _.

a)

biotic, abiotic

b)

abiotic, biotic

c)

organisms, decomposers

d)

herbivores, decomposers

28.

Plants that make their own energy from the sun through photosynthesis are called (choose 2) -

a)

carnivores

b)

consumers

c)

autotrophs

d)

producers

29.

Organisms that eat other organisms to get energy are called (choose 2) -

a)

autotrophs

b)

consumers

c)

producers

d)

heterotrophs

30.

An organism that ONLY eats plants is called a(n) (choose 2) -

a)

primary consumer

b)

omnivore

c)

herbivore

d)

carnivore

31.

An organism that only eats other animals is called a (choose 3):

a)

heterotroph

b)

carnivore

c)

consumer

d)

producer

32.

An organism that eats both plants and animals is called a(n) (choose 3) -

a)

a heterotroph

b)

a consumer

c)

an herbivore

d)

an omnivore

33.

Organisms like fungi and bacteria that eat dead organisms are called (choose 3) -

a)

decomposers

b)

consumers

c)

autotrophs

d)

heterotrophs

34.

Which is more complex, a food chain or a food web?

a)

food chain

b)

food web

35.

What is the initial (first or primary) source of energy in every ecosystem?

a)

plants

b)

higher level consumers

c)

the sun

d)

decomposers

36.

The frog eats the cricket. Choose 3 words to describe the frog.

a)

consumer

b)

1° consumer

c)

carnivore

d)

2° consumer

e)

omnivore

37.

If a scientist goes out to a lake to count the number of turtles, this would be an example of what 2 types of observation.

a)

direct

b)

indirect

c)

quantitative

d)

qualitative

38.

Which of the following are abiotic factors (choose 3)?

a)

the number of trees in an area

b)

the wind

c)

the temperature

d)

the amount of light in a place

39.

Name ALL the 3° or tertiary level consumer(s) in the food web.

a)

hawk

b)

shrew

c)

frog

d)

snake

40.

What do the arrows show in the food web?

a)

they show which organisms are doing cellular respiration

b)

they show which way the energy is flowing

c)

they show which organisms are doing photosynthesis

41.

What is the 10% rule?

a)

90% of energy is LOST as you move up the food chain

b)

10% of energy is LOST as you move up the food chain

c)

90% of energy is GAINED as you move up the food chain

42.
Enzymes are...
a)
nucleic acids
b)
proteins
c)
lipids
d)
carbohydrates
43.
In the diagram, what is letter A? 
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
44.
Any substance that is acted upon by an enzyme is called a(n)?
a)
Coenzyme
b)
Substrate
c)
Vitamin
d)
Polypeptide
45.
Each enzyme only has 1 substrate that will fit its active site.  What is this called?
a)
reusablility
b)
denaturation
c)
specificity
d)
fragility
46.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
47.
What will most likely happen if an appropriate enzyme is added to a chemical reaction? 
a)
The reaction rate will increase.
b)
The equilibrium of the reaction will be maintained. 
c)
The reaction rate will decrease.
d)
The reaction will stop. 
48.
Which of the following best explains why enzymes are necessary for many cellular reactions?
a)
Enzymes supply the oxygen necessary for the reactions
b)
 Enzymes change reactants from solid to liquids during the reactions.
c)
The reactions take up too much space in the cell if the enzymes are missing.
d)
The reactions are too slow to meet the needs of the cell if enzymes are missing. 
49.
The diagram below illustrates a biochemical process that occurs in organisms. What is another name for the substance labeled "catalyst"?
a)
Enzyme
b)
inorganic compound
c)
Hormone
d)
Antibody
50.
The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?
a)
Enzymes increase the energy of the reactants.
b)
Enzymes decrease the energy level of the products.
c)
Enzyme decrease the activation energy of the reaction.
d)
Enzymes reverse the direction of the reaction.
51.
Which enzyme is most efficient in a basic solution?
a)
A
b)
B
52.
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
53.
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 .
54.
Enzymes are...
a)
nucleic acids
b)
proteins
c)
lipids
d)
carbohydrates
55.
In the diagram, what is letter A? 
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
56.
Any substance that is acted upon by an enzyme is called a(n)?
a)
Coenzyme
b)
Substrate
c)
Vitamin
d)
Polypeptide
57.
Each enzyme only has 1 substrate that will fit its active site.  What is this called?
a)
reusablility
b)
denaturation
c)
specificity
d)
fragility
58.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
59.
What will most likely happen if an appropriate enzyme is added to a chemical reaction? 
a)
The reaction rate will increase.
b)
The equilibrium of the reaction will be maintained. 
c)
The reaction rate will decrease.
d)
The reaction will stop. 
60.
Which of the following best explains why enzymes are necessary for many cellular reactions?
a)
Enzymes supply the oxygen necessary for the reactions
b)
 Enzymes change reactants from solid to liquids during the reactions.
c)
The reactions take up too much space in the cell if the enzymes are missing.
d)
The reactions are too slow to meet the needs of the cell if enzymes are missing. 
61.
The diagram below illustrates a biochemical process that occurs in organisms. What is another name for the substance labeled "catalyst"?
a)
Enzyme
b)
inorganic compound
c)
Hormone
d)
Antibody
62.
The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?
a)
Enzymes increase the energy of the reactants.
b)
Enzymes decrease the energy level of the products.
c)
Enzyme decrease the activation energy of the reaction.
d)
Enzymes reverse the direction of the reaction.
63.
Which enzyme is most efficient in a basic solution?
a)
A
b)
B
64.
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
65.
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 .
66.

What is the function of an objective lens in a compound microscope?

a)

It is where you look into the microscope

b)

It magnifies the image

c)

It controls what enters and leaves the cell

d)

It makes ribosomes

67.

What is the total magnification when using an eyepiece lens with a magnification of x10 and an objective lens with a magnification of x40?

a)

x10

b)

x50

c)

x250

d)

x400

68.

What is the function of the cell membrane?

a)

To give the cell strength and shape

b)

To make protein

c)

To store materials

d)

To control what enters and leaves the cell

69.

Which organelle is responsible for cellular respiration and energy production?

a)

Chloroplasts

b)

Mitochondria

c)

Nucleus

d)

Ribosomes

70.

What is the function of chloroplasts?

a)

To perform photosynthesis

b)

To control the cell's activities

c)

To store materials

d)

To make ribosomes

71.

Which of the following is NOT a difference between plant and animal cells?

a)

Plant cells have a cell wall, while animal cells do not.

b)

Plant cells have chloroplasts, while animal cells do not.

c)

Plant cells have large vacuoles, while animal cells do not.

d)

Plant cells have a nucleus, while animal cells do not.

72.

Which type of cells do not have a nucleus or membrane-enclosed organelles?

a)

Prokaryotic cells

b)

Eukaryotic cells

c)

Animal cells

d)

Plant cells

73.

What is the function of nuclear pores in the nucleus?

a)

To make ribosomes

b)

To control what enters and leaves the nucleus

c)

To perform photosynthesis

d)

To supply energy to the cell

74.

Which microscope uses a beam of electrons to provide a surface view of the specimen?

a)

Transmission electron microscope

b)

Compound microscope

c)

Simple microscope

d)

Scanning electron microscope

75.

Which organelle is responsible for the production of ribosomes?

a)

Nucleus

b)

Cytoplasm

c)

Mitochondria

d)

Chloroplasts

76.

What is the purpose of the cell wall in plant cells?

a)

To control what enters and leaves the cell

b)

To store materials

c)

To make protein

d)

To give the cell strength and shape

77.

Which type of microscope uses a beam of electrons to show the internal structure of a specimen?

a)

Transmission electron microscope

b)

Compound microscope

c)

Simple microscope

d)

Scanning electron microscope

78.

What is the role of chlorophyll in chloroplasts?

a)

To control the cell's activities

b)

To store materials

c)

To make ribosomes

d)

To capture light energy for photosynthesis

79.

What is the function of vacuoles in plant cells?

a)

To control what enters and leaves the cell

b)

To give the cell strength and shape

c)

To store materials

d)

To make protein

80.

Which of the following is a characteristic of prokaryotic cells?

a)

They have a nucleus

b)

They are more advanced than eukaryotic cells

c)

They do not have a membrane-enclosed organelles

d)

They are found in animals, plants, and fungi

81.

What is the purpose of the loop of DNA in mitochondria?

a)

To control the cell's activities

b)

To make ribosomes

c)

To allow mitochondria to self-replicate

d)

To store materials

82.

What is the function of chromatin in a cell?

a)

To control the cell's activities

b)

To make ribosomes

c)

To perform photosynthesis

d)

To store genetic information

83.

What is the function of the nucleolus in the nucleus?

a)

To control the cell's activities

b)

To make ribosomes

c)

To perform photosynthesis

d)

To store materials

84.

What is the total magnification when using an eyepiece lens with a magnification of x5 and an objective lens with a magnification of x10?

a)

x5

b)

x10

c)

x15

d)

x50

85.

What is the function of the cytoplasm in a cell?

a)

To control what enters and leaves the cell

b)

To give the cell strength and shape

c)

To store materials

d)

To provide a medium for chemical reactions

86.

Which Kingdom does Bacteria belong too?

a)

Fungi

b)

Animal

c)

Monera

d)

Protista

87.

What type of cell is bacteria

a)

Prokaryotic

b)

Eukaryotic

88.

Which of the units below is not present in a bacterial cell?

a)

Plasmid

b)

Mitochondria

c)

Flagella

d)

Capsule

89.

What is formed in unfavourable conditions in bacteria?

a)

Zygospore

b)

Endospore

c)

Antibiotics

90.

When an organisms makes their own food they are refereed to as?

a)

Heterotrophic

b)

Autotrophic

91.

In the growth curve for microorganism what is the phase of growth refereed to when death and production rates are equal?

a)

Log Phase

b)

Lag Phase

c)

Decline Phase

d)

Stationary Phase

92.

Antibiotics are chemicals produced by micro-organism that stop the growth of ________________

a)

Microorganisms

b)

Viruses

93.

___________________ means preventing contamination

a)

Sterile

b)

Asepsis

c)

Disinfect

94.

Which food processing has a fixed amount of nutrient medium is added to the bioreactor and inoculated with micro-organisms?

a)

Batch Food Processing

b)

Continuous Flow Food Processing

95.

Saprophytic bacteria are

a)

Bacteria that feed on a living host

b)

Bacteria that feed on dead organisms

c)

Bacteria that use chemical reactions to provide energy

96.
Which statement best describes the cell membrane?
a)
The protective outer layer that controls what enters and leaves the cell.
b)
Stores information on DNA molecules / Directs and controls the activities of the cell.
c)
A folded membrane that moves materials around inside cells / Also acts as the site of manufacturing materials needed by the cell.
d)
The smallest organelle with a huge job / Makes proteins, which are the building blocks of the body.
97.
During osmosis
a)
water moves from high to low concentration
b)
large or oddly shaped molecules move across a cell membrane
c)
water moves when energy is used
d)
proteins are built
98.
Osmosis is the movement of _____ across a membrane.
a)
food
b)
energy
c)
oxygen
d)
water
99.
A person would never have pure water put into their veins in a hospital because their cells would...
a)
Shrink/Dehydrate
b)
Expand
100.
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
101.

Osmosis is the diffusion of _____________ across a cell membrane.

a)

Air

b)

Oxygen

c)

Water

d)

Food

102.

Why can't you drink salt water?

a)

It's hypertonic to your cells

b)

It's hypotonic to your cells

c)

It's isotonic to your cells

d)

It's paratonic to your cells

103.
Ideally, your cells should be in a(n) _______ solution
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Cola
104.
An animal cell placed in a hypertonic (salty) solution will
a)
Shrink
b)
Swell
c)
Stay the same
105.

An organism that breaks down decaying organic matter for energy

and returns nutrients to the soil is called a _________.

a)

producer

b)

herbivore

c)

consumer

d)

decomposer

106.

Fungi use _________ to reach out and absorb nutrients from animal

waste and decaying organic matter.

a)

hyphae

b)

caps

c)

spores

d)

gills

107.

Wastes and decaying plants and animals are called _________.

a)

fungi

b)

organic matter

c)

decomposers

d)

nutrients

108.

_________ are decomposers that live in animal wastes.

a)

gills

b)

decay

c)

coprophilous fungi

d)

nitrogen and phosphorus

109.

A _________ is a substance needed by an organism to survive and

grow.

a)

hyphae

b)

nutrient

c)

fungus

d)

decomposer

110.

What is the relationship between fungi and the atmosphere?

a)

Fungi take in oxygen from the atmosphere and release carbon

dioxide back to the air.

b)

Fungi take in carbon dioxide from the atmosphere and release oxygen back to the air.

c)

Fungi take in animal waste from the atmosphere and release oxygen back to the air.

d)

Fungi are plants that take in carbon dioxide and release oxygen.

111.

What is the relationship between animal waste and fungi?

a)

Fungi provide starches, sugars, and minerals to animal waste.

b)

Animal waste provides sugar, starches, and minerals to fungi.

c)

Animal waste provides carbon dioxide and oxygen to fungi.

112.

What should be included in place of the question mark?

a)

water

b)

sugar and starches

c)

oxygen

113.

How do fungi connect animal waste to the soil?

a)

Fungi take in water from animal waste and recycle water back

into the soil.

b)

Fungi break down animal waste into simpler parts and recycle minerals back into the soil.

c)

Fungi take in minerals from soil and recycle minerals back into

animal waste.

114.

Coprophilous fungi are important because ________.

a)

They keep animal waste from building up and recycle nutrients

into the soil.

b)

They supply oxygen to the atmosphere for plants to use to make energy.

c)

They create more animal waste.

115.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
116.

What happens in interphase (choose 2)

a)

Cell grows and developes

b)

DNA lines up in middle

c)

DNA pulls apart

d)

DNA replicates

117.

What happens in Prophase (choose 3)

a)

DNA condenses (packs up)

b)

Spindle fibers appear

c)

Daughter cells separate

d)

DNA lines up in middle

e)

Nuclear envelope (membrane) dissolves

118.

What happens in metaphase? (choose 1)

a)

DNA splits apart

b)

Cell divides

c)

DNA lines up in middle

d)

New nuclei form

119.

What happens in anaphase? (choose 1)

a)

DNA replicates

b)

Chromatids pull apart to opposite sides

c)

DNA lines up in middle

d)

Cell divides

120.

What happens in telophase? (choose 2)

a)

Two new nuclei form

b)

Daughter cells separate into two cells

c)

DNA pulls apart to opposite sides

d)

cytoplasm begins to pinch apart

121.

What happens in cytokinesis? (choose 1)

a)

Daughter cells separate completely as cytoplasm is split into two

b)

Nuclear envelope dissolves

c)

DNA separates apart to opposite sides of the cell

d)

DNA replicates

122.
a)
Prophase
b)
Interphase
c)
Anaphase
d)
Telophase
123.
a)
Anaphase
b)
Cytonkinesis
c)
Interphase
d)
Prophase
124.
a)
Cytokinesis
b)
Interphase
c)
Anaphase
d)
Metaphase
125.
a)
Anaphase
b)
Cytokinesis
c)
Telophase
d)
Metaphase
126.
a)
Cytokinesis
b)
Anaphase
c)
Telophase
d)
Prophase

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