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Biology Unit 2 Review

Total questions: 89

Worksheet time: 4hrs 27mins

Name
Class
Date
1.

Miller and Urey's Experiment tried to show:

a)

Panspermia

b)

Chemicals in the right conditions could form the molecules necessary for life.

c)

Spontaneous Generation

d)

Abiogenesis

2.
The earliest form of life known on Earth was...
a)
Leafy Plants
b)
Bacteria
c)
Fossils
d)
Single-Celled Organisms
3.
This gas was in high concentrations in the early atmosphere, and later condensed to form Earth's oceans. 
a)
oxygen
b)
carbon dioxide
c)
sulfur oxides
d)
water vapor
4.
What gas was most prevalent in Earth's early atmosphere?
a)
carbon dioxide
b)
oxygen
c)
water vapor
d)
sulfur oxides
5.
What gas were we missing in Earth's early atmosphere?
a)
carbon dioxide
b)
oxygen
c)
water vapor
d)
sulfur oxides
6.

All bacteria are

a)

prokaryotes

b)

eukaryotes

7.

DNA is located in the nucleus

a)

prokaryotes

b)

eukaryotes

8.

Do not have a nucleus

a)

prokaryotes

b)

eukaryotes

9.

Eukaryotes have

a)

a real "true" nucleus

b)

no membrane bound organelles

c)

no nucleus

10.

Eukaryotic cells are

a)

the smallest of cells

b)

those without DNA inside of a nucleus

c)

more complex than prokaryotic cells

d)

found only making up multicellular organisms

11.

Eukaryotic cells are

a)

found in plants, animals, protists, and fungi

b)

cells with no membrane bound organelles

c)

less organized than prokaryotic cells

d)

not in possession of a nucleus

12.

Both prokaryotic and eukaryotic cells can

a)

make up unicellular or multicellular organisms

b)

have a nucleus

c)

have membrane bound organelles

d)

make up unicellular organisms

13.

Both prokaryotes and eukaryotes

a)

have a nucleus

b)

have DNA

c)

do not have DNA

d)

have DNA in the form of chromosomes

14.

Prokaryotes

a)

have no membrane bound organelles

b)

have membrane bound organelles

c)

do not have a cell membrane

d)

are not bacteria

15.

Both prokaryotes and eukaryotes have a

a)

nucleus

b)

mitochondria

c)

cell membrane and cytoplasm

16.

________ cells are more primitive and simple than ________ cells.

a)

Prokaryotic

Eukaryotic

b)

Eukaryotic

Prokaryotic

17.

All cells have the a cell membrane, cytoplasm, DNA, and _______

a)

Mitochondria

b)

Nucleus

c)

Ribosomes

d)

Cell Wall

18.

Which cell types have DNA?

a)

Prokaryotic

b)

Eukaryotic

c)

Both Cell Types

19.

Another name for prokaryotic cells is _______

a)

Human Cells

b)

Plant Cells

c)

Animal Cells

d)

Bacteria

20.

Eukaryotic cells have a membrane-bound ______ which holds the _______

a)

mitochondria,

RNA

b)

mitochondria

DNA

c)

Nucleoid

DNA

d)

Nucleus,

DNA

21.

The first organism on our planet where _______ and ______

a)

Eukaryotic,

aerobic

b)

Prokaryotic,

aerobic

c)

Eukaryotic,

anaerobic

d)

Prokaryotic,

anaerobic

22.

The most primitive groups of bacteria prefer extreme environments. They are also the oldest on Earth. They are called______

a)

Eubacteria

b)

Protista

c)

Archaebacteria

23.

receives, packages and distributes proteins

a)

golgi body

b)

chloroplast

c)

ribosomes

d)

lysosome

24.

protects and supports plant cells

a)

cell wall

b)

cell membrane

c)

mitochrondria

d)

cytoplasm

25.

Convert's the sun's energy to food for the cell

a)

chloroplast

b)

nucleus

c)

endoplasmic reticulum

d)

lysosome

26.

storage area for the cell

a)

vacuole

b)

cytoplasm

c)

chloroplast

d)

cell wall

27.

controls what enters and leaves the cell

a)

cell membrane

b)

cell wall

c)

endoplasmic reticulum

d)

golgi body

28.

builds proteins for cell functions

a)

ribosomes

b)

mitochondria

c)

nucleus

d)

lysosome

29.

powerhouse of the cell, produces energy

a)

mitochondria

b)

nucleus

c)

cytoplasm

d)

chloroplast

30.

command center, direct's the cell's activities

a)

nucleus

b)

lysosome

c)

mitochondria

d)

endoplasmic reticulum

31.

breaks down food and worn out parts

mostly in animal cells

a)

lysosome

b)

vacuole

c)

cell wall

d)

golgi body

32.

fluid that fills the cell

a)

cytoplasm

b)

vacuole

c)

chloroplast

d)

golgi body

33.

transports materials in the cell

a)

endoplasmic reticulum

b)

golgi body

c)

ribosomes

d)

mitochondria

34.

Which macromolecule is used as our main source of energy?

a)

Lipids/Fats

b)

Nucleic Acids

c)

Proteins

d)

Carbohydrates

35.

Which macromolecule stores energy?

a)

Carbohydrates

b)

Proteins

c)

Lipids/Fats

d)

Nucleic Acids

36.

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

a)

FDA

b)

RNA

c)

DNA

d)

FDR

37.

What COLOR is the "Enzyme" in this picture?

a)

Green

b)

Blue

c)

Black

38.

What is this?

a)

water

b)

DNA

c)

a snake

39.

Match the following MONOMERS and MACROMOLECULES

a)
1.

Nucleic Acid

b)
2.

Protein

c)
3.

Lipid

d)
4.

Carbohydrate

40.

An enzyme is a ______________.

a)

carbohydrate

b)

lipid

c)

nucleic acid

d)

protein

41.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
42.
DNA and RNA are examples of 
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
43.
What is the purpose  of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
44.

Diffusion & Facilitated Diffusion are both __________ transport.

a)

Passive

b)

Active

c)

Easy

d)

Free

45.

Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]

a)

high to low

b)

low to high

c)

low to low

d)

high to high

46.

Passive Transport uses ____ energy

a)

no

b)

a lot of

c)

a little bit of

d)

some

47.

What is the movement of particles with the concentration gradient using protein "helpers"?

a)

diffusion

b)

facilitated diffusion

c)

active transport

d)

enzymatic reactions

48.

Facilitated diffusion needs what to get particles from one side of the membrane to the other?

a)

a membrane-spanning protein

b)

a surface protein

c)

a phospholipid

d)

a carbohydrate

49.

The general name for movement of substances across cell membranes without need of energy input

a)

passive transport

b)

active transport

50.

The condition in which all acting influences are balanced.

a)

equilibrium

b)

dynamic equilibrium

c)

net movement

51.

The diffusion of water is called

a)

Active transport

b)

Facillitated diffusion

c)

Osmosis

d)

Exocytosis

52.

When substances move against their concentration gradient, they are moving from

a)

high to low concentration

b)

low to high concentration

c)

inside to outside in equal concentration

53.

What are the main subunits that makes up this structure called?

a)

proteins

b)

carbohydrates

c)

phospholipids

d)

glycoproteins

54.

What is #2?

a)

phospholipid

b)

cholesterol

c)

nonpolar tails

d)

protein

55.

In ACTIVE TRANSPORT, substances move from:

a)

High concentration to low concentration

b)

Low concentration to high concentration

56.
What type of transport is this?
a)
Endocytosis
b)
Facilitated Diffusion
c)
Active Transport Pump
d)
Osmosis
57.

Active transport is movement of particles through the cell membrane from a region of ...1... to a region of ...2... using energy in the form of ...3...

a)

1: lower concentration, 2: higher concentration, 3: NADPH

b)

1: higher concentration, 2: lower concentration, 3: NADPH

c)

1: higher concentration, 2: lower concentration, 3: ATP

d)

1: lower concentration, 2: higher concentration, 3: ATP

58.
What is the difference between active and passive transport?
a)
Active does not need energy and passive uses ATP (energy)
b)
Active uses ATP (energy) and passive does not need energy
c)
Active stores transport proteins and passive releases 
d)
Active uses hormones and passive does not 
59.

Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than

a)

a beam of light.

b)

a beam of compounds

c)

a beam of cells

d)

a beam of specimens

60.

Which microscope took a 3D image of this fly's head?

¿Qué microscopio tomó una imagen 3D de la cabeza de esta mosca?

a)

Compound Light

b)

Transmission Electron

c)

Dissecting

d)

Scanning Electron

61.

 

John wants to see a mitochondria under a microscope. Which microscope(s) should he choose?

a)

Dissecting Microscope

b)

Compound Light Microscope

c)

Scanning Electron Microscope

d)

Transmission Electron Microscope

62.

What is the advantage of using a light microscope over an electron microscope?

a)

Greater magnification

b)

Greater resolution

c)

Can view living cells

d)

Images are only in black and white

63.
Which statement is a part of the cell theory?
a)
All cells come from preexisting cells
b)
Bacteria are prokaryotic cells
c)
Eukaryotic cells are complex
d)
Humans are multicellular
64.
The Cell Theory states...
a)
Atoms create all matter
b)
Living things evolve
c)
The cell is the backbone of all matter
d)
Cells are the basic unit of structure and organization of organisms
65.
Which microscope would you use to see a bed bug in 3D, with a magnification of about 500,000X?
a)
Compound Light
b)
Scanning Electron
c)
Dissecting
d)
Transmission Electron
66.
Which electron microscope provides details of a cell's internal structures?
a)
Scanning Electron Microscope (SEM)
b)
Transmission Electron Microscope (TEM)
c)
Light Microscope
d)
Dissecting Microscope
67.
Which microscope delivers the highest overall magnification possible?
a)
Scanning Electron (SEM)
b)
Transmission Electron Microscope (TEM)
c)
Light Microscope
d)
Dissecting Microscope
68.

What does TEM stand for?

a)

transmission electron microscope

b)

translation electron microscope

c)

telepathic electron microscope

d)

tori eats mangos

69.

What does SEM stand for?

a)

scanning electron microscope

b)

sandwich electron microscope

c)

soft electron microscope

d)

Sara eats margarine

70.

What is one disadvantage of using an electron microscope

a)

The specimen cannot be alive when viewed

b)

The specimen cannot be viewed with as great a magnification as with a light microscope

c)

One cannot view thin sections, only the surface of objects

d)

It has less resolving power compared to a compound light microscope

71.

What is the difference between transmission electron microscopes and scanning electron microscopes

a)

TEM is used for thin sections while SEM is for surface photography

b)

SEM does not require heavy metal staining while TEM does.

c)

One can use a slide prepared for a compound light microscope directly in TEM, but not in SEM.

d)

SEM generally has higher magnification than TEM

72.
Laws tells us that it happens but doesn’t describe how or why.
a)
True
b)
False
73.
Scientific theories are based on
a)
general assumptions of how systems work.
b)
mathematical principles that can be proven true.
c)
large amounts of data collected over time.
d)
observations from within only one scientific discipline.
74.

A scientific law is a repeatable pattern in nature

a)

True

b)

False

75.

An explanation of why or how something happens.

a)

Hypothesis

b)

Theory

c)

Law

76.

A description of what will always happen.

a)

Hypothesis

b)

Theory

c)

Law

77.

What type of bond is found BETWEEN water molecules?

a)

hydrogen bonds

b)

ionic bonds

c)

nonpolar covalent bonds

d)

polar covalent bonds

78.

Cohesive force between water molecules and adhesive force between water molecules and other molecules enable this phenomenon __________________ occur.

a)

surface tension

b)

capillary action

c)

float on water

d)

photosynthesis

79.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
80.
When water molecules stick easily to other water molecules, this is called what?
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
81.
The tightness across the surface of water that enables paper clips to float is ____________.
a)
adhesion
b)
capillary action
c)
surface tension
d)
polarity
82.
Which statement explains why water molecules stick together?
a)
both sides are negative
b)
one side has a positive charge and the other side has a negative charge
c)
one side has a negative charge adn the other side has a neutral charge
d)
both sides are positive
83.
Large bodies of water help to keep nearby climates from being too hot or too cold  because they...
a)
absorb heat in the spring and slowly release that heat in the fall
b)
absorb heat in the fall and slowly release that heat in the spring
c)
absorb heat in the summer and slowly release that heat in the winter
d)
absorb heat in the winter and slowly release that heat in the summer
84.
Which scientist designed a special flask that allowed air in but kept microbes out and once and for all disproved spontaneous generation?
a)
Redi
b)
Needham
c)
Spallanzani
d)
Pasteur
85.
Which gas was believed to be absent from early Earth's atmosphere
a)
Hydrogen
b)
Nitrogen
c)
Oxygen
d)
Carbon
86.
Which of the following terms refers to life coming from other living things?
a)
Abiogenesis
b)
Biogenesis
c)
Spontaneous generation
d)
Endosymbiosis
87.
What type of organism was the first to inhabit Earth?
a)
anaerobic heterotrophic prokaryote
b)
aerobic heterotrophic prokaryote
c)
anaerobic autotrophic prokaryote
d)
aerobic autotrophic prokaryote
88.
Which of the following terms is another name for spontaneous generation?
a)
Abiogenesis
b)
Biogenesis
c)
Chemical evolution
d)
Organic evolution
89.

What is the idea that life can arise form nonliving material?

a)

biogenesis

b)

evolution

c)

spontaneous combustion

d)

spontaneous generation

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