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Unit 1 - Introduction to Biology

Total questions: 74

Worksheet time: 2hrs 28mins

Name
Class
Date
1.
What is biology?
a)
The study of mammals.
b)
The study of fish.
c)
The study of living things.
d)
The study of dead things.
2.
The scientific method begins with a (an)
a)
hypothesis
b)
expermient
c)
observation
d)
conclusion
3.
A researched and educated answer to a question put in the form of an if -then statement is a
a)
guess
b)
hypothesis
c)
clue
d)
conclusion
4.
What is the smallest unit of life?
a)
cell
b)
lysosome
c)
organ
d)
tissue
5.

The maintaining of an organism’s internal environment is called:

a)
compensating
b)
homeostasis
c)
balancing
d)
routine
6.

Which of the following is NOT a characteristic of life?

a)

Reproduces

b)

Made up of one or more cells

c)

Movies

d)

Requires energy

7.

Which helps maintain a dog's homeostasis?

a)

Sleeping

b)

Panting

c)

Eating

d)

Hunting

8.

What is a claim?

a)

A guess

b)

A conclusion based on evidence

c)

A statement or conclusion that answers a question asked in an experiment

d)

An observation

9.

What is evidence?

a)

A statement or conclusion that answers a question asked in an experiment

b)

Data collected in a scientific experiment to test a claim

c)

A conclusion based on results of an experiment

d)

Why your evidence supports your claim

10.

What is reasoning?

a)

A statement or conclusion that answers a question asked in an experiment

b)

Why your evidence supports your claim

c)

Data collected in a scientific experiment to test a claim

d)

A testable prediction

11.

You should never ______ chemicals in the lab.

a)

taste

b)

touch

c)

smell

d)

all of the above

12.

Keeping your work area neat and clean is important because:

a)

My teacher is a neat-freak

b)

I won't lose my supplies in the clutter.

c)

It keeps the room from looking messy.

d)

It helps prevent accidents.

13.

What is the CORRECT procedure for students to follow if a chemical is spilled?

a)

Stand back and advise the teacher of the spill.

b)

Run madly out of the room.

c)

Splash large amounts of water onto the spill.

d)

Immediately ask to go to the restroom.

14.

You should report accidents to the teacher __.

a)

after the class is over

b)

immediately

c)

the following day

d)

never

15.

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

a)

wipe your hands on your clothes

b)

wipe your hands on a towel

c)

wash your hands thoroughly with soap and water

d)

treat your hands with skin lotion

16.

Label the part of the microscope. What is part A?

a)

eyepiece lens

b)

Body Tube

c)

Stage Clips

d)

objective lens

17.

Label the part of the microscope. What is part B?

a)

eyepiece lense

b)

Arm

c)

Base

d)

Objective Lens

18.

Label the part of the microscope. What is part D?

a)

stage

b)

stage clips

c)

base

d)

objective lens

19.

Label the part of the microscope. What is part E?

a)

diaphragm

b)

coarse adjustment knob

c)

objective lens

d)

fine adjustment knob

20.

Label the part of the microscope. What is part F?

a)

stage

b)

coarse focus knob

c)

fine focus knob

d)

eyepiece tube

21.

Label the part of the microscope. What is part H?

a)

stage

b)

objective lens

c)

body

d)

fine focus knob

22.

Label the part of microscope. What is part J?

a)

Stage Clips

b)

Base

c)

Fine Focus Knob

d)

Diaphragm

23.

Microscopes allow us to view objects in great _____________.

a)

detail

b)

magnification

c)

objective

d)

body

24.

The greater the ___________________, the smaller the field you are actually viewing.

a)

detail

b)

objective

c)

magnification

d)

body

25.

The microscopes we used in class had three ________________ which allows different amounts of magnification.

a)

detail

b)

magnification

c)

objectives

d)

body

26.

When carrying a microscope, place one hand on the ________ and one on the _________.

a)

focus knob

b)

body/arm

c)

stage

d)

foot/base

27.

The smallest objective we used in class was _____X.

a)

two

b)

three

c)

four

d)

five

28.

What piece controls the amount of light that enters the microscope ?

a)

Aperture

b)

Diaphragm

c)

Light Source

d)

Arm

29.

When observing a specimen using the 10x eyepiece and the high-powered objective (40x), what is the total magnification that the specimen is being observed?

a)

400X

b)

40X

c)

100X

d)

4000X

30.

Which knob CANNOT be turned when observing a specimen using the high-powered objective?

a)

coarse adjustment

b)

fine adjustment

c)

nosepiece adjustment

d)

objective adjustment

31.

Which of the following is a term used to describe all the chemical reactions that take place in a living thing?

a)
respiration
b)
mutations
c)
homeostasis
d)
metabolism
32.

A plant growing towards a light source is an example of which of the following?

a)

attracting a mate

b)

destroying infectious germs

c)

responding to a stimuli

d)

obtaining moisture from the air

33.
Which of the following characteristics of living things best explains why your legs and arms get longer and stronger as you get older? 
a)
living things respond to their environment
b)
living things maintain internal balance
c)
living things are made of cells
d)
living things grow and develop
34.
When you step out into the cold, your body shivers in order to keep its temperature at 98.6F.
a)
All living things use energy
b)
All living things contain cells
c)
All living things maintain homeostasis
d)
All living things grow
35.

YOU are a multicellular organism but an amoeba is a unicellular organism.

a)
All living things have cells
b)
All living things grow
c)
All living things use energy
d)
All living things respond to their environment
36.

Which characteristic of living things is represented in the picture?

a)

Respond to stimuli

b)

Grow and develop

c)

Evolution

d)

Made of cells

37.
The scientific name for something living is a(an)
a)
organism
b)
cell
c)
tissue
d)
human
38.
An organism made of one cell is called
a)
unicellular
b)
multicellular
39.
Large bodies of water do not quickly fluctuate in temperature. Why?
a)
Water is a solvent.
b)
Water has a high heat capacity.
c)
Water acts as a buffer.
d)
Water is non-polar.
40.
Water striders can walk across the surface of calm water. Their feet push the surface of the water down slightly, but they do not break the surface. Why?
a)
The insects are light enough so they do not break the hydrogen bonds holding the water molecules together
b)
The insects actually use their wings to hover slightly above the water’s surface and they only skim it with their feet.
c)
The insect’s feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water’s surface.
d)
The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
41.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
42.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
43.
Why does water move from the roots to the leaves of plants?
a)
Water is pushed by solutes
b)
Capillary action pulls the water molecules like a chain
c)
Water is pulled by gravity
d)
Water’s cohesion causes it to “pull” towards the leaves
44.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
45.
Why does ice float?
a)
As water freezes, it expands and its density decreases.
b)
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
c)
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
d)
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
46.
Water is polar because...
a)
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
b)
The molecule has two poles, at which the it is colder than other regions of the molecule.
c)
The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
d)
The water molecule is neutral.
47.

How many hydrogen atoms are in a water molecule?

a)

5

b)

1

c)

2

d)

0

48.

The bond that holds the Oxygen and Hydrogen atoms together in a water molecule is a ________ bond.

a)

ionic

b)

Hydrogen

c)

Covalent

d)

Weak

49.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
50.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
51.
When water molecules stick easily to other water molecules, this is called what?
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
52.

The prefix hydro- means

a)

earth

b)

water

c)

sun

d)

cells

53.

The suffix -philic means

a)

hating

b)

loving

c)

cells

d)

Philis

54.

The suffix -phobic means

a)

fear

b)

loving

c)

pho

d)

phone

55.

Dehydration synthesis forms macromolecules, in which large compounds are built by joining smaller ones.

The smaller units, or _____, join together to form _____.

a)

polymers, monomers

b)

monomers, polymers

c)

molecules, atoms

d)

cells, molecules

56.

Four groups of organic compounds found in living things are

a)

water, vitamins, minerals, air

b)

carbon, hydrogen, oxygen, and nitrogen

c)

sunlight, chlorophyll, photosynthesis, and glucose

d)

carbohydrates, lipids, nucleic acids, and proteins

57.

Single sugar molecules are called _____.

a)

monosaccharides

b)

disaccharides

c)

triglycerides

d)

polysaccharides

58.

Large macromolecules formed from monosaccharides are called _____.

a)

disaccharides

b)

triglycerides

c)

polysaccharides

d)

glucose

59.

Which macromolecule is used to store and transmit hereditary/genetic information?

a)

carbohydrates

b)

lipids

c)

nucleic acids

d)

proteins

60.

Nucleic acids are composed of monomers called _____.

a)

starch

b)

glycerol

c)

DNA

d)

nucleotides

61.

Proteins are composed of monomers called _____.

a)

monosaccharides

b)

glycerol molecule

c)

nucleotides

d)

amino acids

62.

A ______________ is a large molecule.

a)

Micromolecule

b)

Polymer

c)

Amino Acid

d)

Macromolecule

63.

Which of the following elements are found in all macromolecules? (Select all that apply).

a)
b)
c)
d)
64.

Which of the following are examples of carbohydrates? (Select all that apply).

a)

Bread

b)

Pasta

c)

Olive Oil

d)

Cheese

65.

Nucleic acids make up which of the two molecules listed below?

a)

FDA

b)

RNA

c)

DNA

d)

FDR

66.

An avocado is an example of a which macromolecule?

a)

Carbohydrate

b)

Lipid/Fat

c)

Protein

d)

Nucleic Acid

67.

This macromolecule breaks down into sugars such as glucose.

a)

Lipids/Fats

b)

Nucleic Acids

c)

Protein

d)

Carbohydrates

68.

How how carbohydrates and lipids similar?

a)

both contain C, H, O, N, P and store energy

b)

both contain C, H, O, N and give energy

c)

both contain C, H, O, N, S and store energy

d)

both contain C, H, O and give energy

69.

The substance that binds to an enzyme is called a?

a)

Polypeptide

b)

Co-enzyme

c)

Vitamin

d)

Substrate

70.

Which of the following best explains why enzymes are necessary for reactions in our cells?

a)

The reactions are too slow to meet the needs of the cell if enzymes are missing.

b)

Enzymes supply the oxygen necessary for the reactions.

c)

Enzymes change reactants from solid to liquid during the reactions.

d)

The reactions take up too much space in the cell if enzymes are missing.

71.

Changes in pH and temperature can ___________________ an enzyme which causes it to lose its shape and affects its function.

a)

puncture

b)

denature

c)

double

d)

delete

72.

The ____________________ mechanism describes how each substrate must fit into the enzyme.

a)

lock and key

b)

hammer and nail

c)

jigsaw puzzle

d)

seesaw

73.

What is the purpose of an enzyme?

a)

control how many reactions occur

b)

raise activation energy

c)

give permission for the reaction

d)

speed up chemical reactions

74.

Where do substrates bind to an enzyme?

a)

calcium channels

b)

active site

c)

receptor molecules

d)

voltage-gated channels

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