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Science Year End Review 8th

Total questions: 100

Worksheet time: 1hrs 28mins

Name
Class
Date
1.
Which of the following is the smallest unit of life that can carry out all life functions?
a)
the mitochondria
b)
the vacuoles
c)
the nucleus
d)
the cell
2.
Which structures are found in every living cell?
a)
cell membrane and cytoplasm
b)
chloroplasts and mitochondria
c)
a cell wall and nucleus
d)
chloroplasts and cell wall
3.
Which cell structure is found in plant and animals cells and controls what can come into or leave a cell?
a)
cell membrane
b)
cytoplasm
c)
nucleus
d)
vacuole
4.
What is the function of the cell nucleus found in both plant and animal cells?
a)
to produce energy
b)
to control cell activity
c)
to remove waste products
d)
to allow molecules to enter the cell
5.
Chloroplasts in plant cells allow the plant to perform a function that animal cells cannot do.  What is the main function of the chloroplasts found in plant cells?
a)
to absorb light energy and manufacture food
b)
to remove waste materials by active transport
c)
to manufacture chemical energy from food
d)
to control the shape of the cell
6.
All cells need energy to function.  Which cell organelle is responsible for producing energy in the cell?
a)
chloroplasts
b)
mitochondria
c)
nucleus
d)
vacuoles
7.
What is the function of a cell wall?
a)
to protect and support the cell
b)
to perform different functions in each cell
c)
to prevent water from passing through it
d)
to prevent oxygen from entering the cell
8.

What are the "X" shaped things in the drawing.

a)

PMATs

b)

Chromosomes

c)

Ribosomes

d)

Telophase

9.

During what phase of Mitosis do the chromosomes line up in the Middle

a)

Metaphase

b)

Prophase

c)

Telophase

d)

Anaphase

10.

Which stage of the Life Cycle of the cell is this cell in (look close-the DNA hasn't formed Chromosomes (X) yet)

a)

Interphase

b)

Prophase

c)

Anaphase

d)

Telophase

11.

PMAT helps us remember the correct order of the phases of Mitosis. Which of the following has the phases of Mitosis in the correct Order

a)

Interphase, Mitosis, Cytokinesis

b)

Prophase, Metaphase, Anaphase, Prophase

c)

Anaphase, Telophase, Prophase, Telophase

d)

Prophase, Metaphase, Anaphase, Telophase

12.

Which of the following is the correct order of the Cell Cycle?

a)

Interphase, Mitosis, Cytokinesis

b)

Mitosis, Cytokinesis, Mitosis, Interphase

c)

Prophase, Metaphase, Anaphase, Telophase

d)

Interphase, Prohase, Cytokinesis

13.

In which phase of Mitosis do the Chromosomes pull Apart

a)

Metaphase

b)

Prophase

c)

Anaphase

d)

Telophase

14.

How many chromosomes to do most human cells have?

a)

2

b)

46

c)

92

d)

Identical to your age

15.
Identify the phase:
a)
Metaphase I
b)
Metaphase II
c)
Anaphase I
d)
Anaphase II
16.
Identify the phase.
a)
Metaphase I
b)
Metaphase II
c)
Anaphase I
d)
Anaphase II
17.
Identify the process.
a)
Mitosis
b)
Meiosis I
c)
Meiosis II
d)
Interphase
18.
After meiosis II the daughter cells will contain ____ chromosomes if the original cell contained 78.
a)
78
b)
39
c)
23
d)
46
19.
Which of the following cells is a gamete?
a)
egg
b)
bone
c)
heart
d)
muscle
20.
When does replication of chromosomes occur in animal cell meiosis?
a)
Before Meiosis I and Meiosis II
b)
Before Meiosis II Only
c)
Before Meiosis I Only
d)
During Prophase I and Prophase II
21.
Identify the phase.
a)
Telophase I
b)
Telophase II
c)
Metaphase I
d)
Metaphase II
22.
In sexual reproduction, chromosome reduction is necessary to ___.
a)
ensure that all offspring have the correct diploid number of chromosomes
b)
ensure that all offspring have the correct haploid number of chromosomes
c)
ensure that all daughter cells are identical
23.

Is this a normal human karyotype?

a)

YES

b)

NO

24.
In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?
a)
Tall = T
Short = S
b)
Tall = T
Short = t
c)
Tall = t
Short = T
d)
Tall = TT
Short = tt
25.
A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?
a)
0%
b)
25%
c)
50%
d)
75%
26.
A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?
a)
0%
b)
25%
c)
50%
d)
75%
27.
What is the probability of a purple-horned unicorn if a heterozygous pink-horned unicorn is crossed with a heterozygous pink-horned unicorn?
a)
0%
b)
25%
c)
50%
d)
75%
28.
Georgette wants to breed her pet phoenixes, but she isn't sure if the babies will burst into blue flames or red flames. Her documents show that her female phoenix is homozygous dominant for red flames, while her male phoenix is homozygous recessive for blue flames. What color flames will the babies have?
a)
Red
b)
Blue
c)
Purple
d)
50% Red, 50% Blue
29.
Leonardo bet his friend Olivet that two heterozygous green-eyed sea monsters could not have a recessive blue-eyed baby sea monster. Olivet said they can have a blue-eyed sea monster.
Who wins the bet?
a)
Leonardo
b)
Olivet
c)
Both
d)
Neither
30.
A brown-furred ewok has 12 babies with a black-furred ewok. 9 ewok babies have black fur, while 3 ewok babies have brown fur. What are the probable genotypes of the parents?
a)
BB and bb
b)
BB and Bb
c)
Bb and Bb
d)
Bb and bb
31.
Jabba the Hutt has finally decided to settle down and have a family. He has undergone genetic testing and learned that he is heterozygous for Hutt Fungal Syndrome, which is caused by recessive alleles. He is worried that his children might suffer from this syndrome. His Hutt mate has undergone genetic testing and discovered she is homozygous dominant for the syndrome. Should Jabba be worried?
a)
Yes
b)
No
32.
A Jawa notices that his beloved pet desert rat, who has brown fur, just had several rat babies, some of which had white fur and some which had brown fur. Brown fur is the dominant trait. This means his rat must have what genotype?
a)
Homozygous Dominant
b)
Heterozygous
c)
Homozygous Recessive
33.
Identify the homozygous dominant genotype:
a)
FF
b)
Ff
c)
ff
34.
Bob the abominable snowman lives in the snowy Andes mountains. He has white fur, which blends in nicely. He is therefore dismayed when his mate keeps having red-furred babies. What is Bob's likely genotype?
a)
Homozygous Dominant
b)
Heterozygous
c)
Homozygous Recessive
35.
What phenotype would result from crossing a homozygous dominant purple-flowered pea plant with a homozygous recessive white-flowered pea plant?
a)
Pp
b)
Purple
c)
White
d)
PP and pp
36.

What is a trait?

a)

Your DNA

b)

The things that make an individual unique

c)

Common characteristics in a species

d)

Chromosomes

37.

Where are "Genes" found?

a)

Mitochondria

b)

Cytoplasm

c)

Centrosomes

d)

Chromosomes

38.

How many chromosomes do humans have?

a)

23

b)

92

c)

46

d)

184

39.

How do we write DOMINANT alleles?

a)

Capital letters

b)

Lower case

40.

How do we write recessive alleles?

a)

Capital letters

b)

Lower case

41.

An individual has the phenotype Bb. Will they express the dominant or recessive trait?

a)

Recessive

b)

Dominant

42.

Your heart is an involuntary muscle that is always working.

a)

True

b)

False

43.

The heart is made of which of the following types of muscles?

a)

Cardiac muscle

b)

Striated muscle

c)

Smooth muscle

d)

None of the above

44.

Your heart always pumps at the same rate.

a)

True

b)

False

45.

Electricity cause your muscles to contract.

a)

True

b)

False

46.

Which of the following are chambers of the heart?

a)

Valves

b)

Atrium and ventricle

c)

Arteries and veins

d)

Sinoatrial nerve

47.

Which of the following is true about your heart?

a)

Your heart may stop beating from time to time.

b)

You have to think in order to keep your heart beating.

c)

Your heart pushes blood through your body.

d)

All of the above

48.

The pulmonary artery is the artery that carries the blood to your heart from your lungs.

a)

True

b)

False

49.

How are arteries and veins different?

a)

One is bigger than the other.

b)

The arteries carry more blood than the veins.

c)

The arteries carry blood away from the heart while veins carry blood to the heart.

d)

The veins carry blood away from the heart while arteries carry blood to the heart.

50.

How big is your heart?

a)

About the size of your brain

b)

About the size of your lungs

c)

About the size of a cell

d)

About the size of your fist

51.

Which chamber in the heart collects oxygen poor blood?

a)

Right Atrium

b)

Right Ventricle

c)

Left Atrium

d)

Left Ventricle

52.

Which chamber in the heart collects oxygen rich blood?

a)

Right Atrium

b)

Left Ventricle

c)

Left Atrium

d)

Right Ventricle

53.

Which chamber in the heart pumps oxygen poor blood to the pulmonary artery?

a)

Right Ventricle

b)

Left Ventricle

c)

Aorta

d)

Right Atrium

54.

Which chamber of the heart pumps oxygen rich blood to the aorta?

a)

Pulmonary Artery

b)

Left Atrium

c)

Left Ventricle

d)

Right Ventricle

55.

What is the main artery in our body carrying oxygen rich blood?

a)

Aorta

b)

Pulmonary

56.

What artery carries oxygen rich blood to the lungs to pick up oxygen?

a)

Aorta

b)

Pulmonary

57.

What organ in the lungs puts oxygen into the blood?

a)

Bronchioles

b)

Bronchi Yubes

c)

Diaphragm

d)

Alveoli

58.

How does the heart muscle move the blood between your heart, lungs and the rest of the body?

a)

Magic

b)

Diaphragm muscle pushes the blood around your body

c)

Muscle contractions and relaxations

d)

Who knows, ask a scientist

59.

One living thing. Ex. One frog, one tree, one rabbit

a)

Population

b)

Organism

c)

Community

d)

Ecosystem

60.

Many organisms of the same species living in the same area.

a)

Ecosystem

b)

Community

c)

Population

d)

Community

61.

All of the living and non-living parts of the environment in the same area.

a)

Population

b)

Community

c)

Organism

d)

Ecosystem

62.

Many different types of populations living in the same area. All the living things in an area.

a)

Community

b)

Ecosytem

c)

Population

d)

Organism

63.

Click on all the abiotic factors

a)

Rabbit

b)

soil

c)

water

d)

sunlight

64.

Click on all the biotic factors

a)

rabbit

b)

tree

c)

soil

d)

water

65.

Producers are important because they

a)

create shade for frogs

b)

smell nice

c)

use energy from the sun to make their own food and are the base of energy pyramids

d)

create homes for birds and squirrels

66.

What is the role of decomposers

a)

They break down dead organisms and return their nutrients back to the ecosystem.

b)

Supply energy to the sun

c)

Help organize the community

d)

Create energy from the sun

67.

Consumers are

a)

organisms that help break down dead material

b)

organisms that create energy from the sun

c)

organisms that live in the ocean

d)

Organisms that get their energy from eating other organisms.

68.

In the food chain Carrots--->Rabbit--->Fox. The fox is a

a)

Producer

b)

First level consumer

c)

Second level consumer

d)

Decomposer

69.

In the food web list all the producers.

a)

Fox and Owl

b)

Bird and mouse

c)

Grasshopper and rabbit

d)

Carrots, grasses, and grains

70.

Which level in the energy pyramid has the most energy?

a)

Producers (buffalo grass)

b)

Vulture (Level 3 consumer)

c)

Coyote (Level 2 consumer)

d)

Prairie Dog (Primary Consumer)

71.

Which is an example of competition

a)

A seagull eating a fish

b)

A lion eating a water buffalo

c)

Two hermit crabs fighting over a shell

d)

A chicken running away from a fox

72.

What is the definition of cooperation

a)

Members of the same or different species fight for resources and survival.

b)

Members of the same species work together to meet their survival needs.

c)

A relationship that benefits one organism and the other is unaffected

d)

Being nice to your teacher

73.

Based on the graph, which organism is the prey?

a)

Snowshoe Hare

b)

Artic Fox

74.
The non living parts of an ecosystem
a)
abiotic factors
b)
biotic factors
c)
oxygen
d)
soil
75.
All of the different populations that live in a specific area.
a)
ecosystem
b)
habitat
c)
ecology
d)
community
76.
An abiotic part of an ecosystem; required by plants to perform photosynthesis.
a)
water
b)
soil
c)
sunlight
d)
oxygen
77.
An abiotic part of an ecosystem; this gas is required by all living things.
a)
oxygen
b)
ecology
c)
biotic factors
d)
jellybeans
78.
The place where an organism lives that provides it with shelter, food and water.
a)
ecosystem
b)
population
c)
community
d)
habitat
79.
The study of the interaction of living and nonliving things in the environment.
a)
biology
b)
ecology
c)
zoology
d)
psychology
80.
All the members of one type of species in a specific area.
a)
habitat
b)
community
c)
population
d)
ecosystme
81.
the living parts of an ecosystem
a)
biotic factors
b)
biology
c)
abiotic factors
d)
animals
82.
An abiotic part of an ecosystem; made of small pieces of rock, water and decaying matter.
a)
sunlight
b)
oxygen
c)
water
d)
soil
83.
All of the different populations that live in a specific area.
a)
community
b)
habitat
c)
ecosystem
d)
village
84.

_______ are the smallest units of life because they grow, reproduce, respond, and use energy.

a)

atoms

b)

elements

c)

cells

d)

all of the above

85.

Cells come from______.

a)

other preexisting cells

b)

cytoplasm

c)

organelles

d)

prokaryotes

86.

The cell theory states that_________

a)

cells come from cells

b)

all organisms are made of cells

c)

cells are the basic unit of structure and function for life

d)

all of the above

87.

________ is the scientist who saw small chambers when looking at cork, and named them “cells”.

a)

Newton

b)

Hooke

c)

Carson

d)

Manning

88.

The size of an organism is determined -

a)

by the size of the cells that make up the organism.

b)

by the number of cells that the organism has.

89.

A multicellular organism is made of

a)

one cell

b)

multiple cells

c)

unicellular cells

d)

there is no such thing as a "multicellular" organism

90.

One common feature of all cells is their ability to -

a)

work with other cells in a "unicellular" organism.

b)

reproduce themselves.

c)

be formed by spontaneous generation.

d)

exist without needing a cell membrane

91.

When a cell is ready to reproduce, it duplicates its contents, then divides into two similar (and sometimes exact duplicate) cells.

a)

True

b)

False

92.

Cellular Respiration occurs within me and I am in BOTH plant and animal cells. I am a....

a)

Nucleus

b)

Golgi Body

c)

Cytoskeleton

d)

Mitochondria

93.

What kind of cell is this?

a)

plant

b)

animal

94.

What kind of cell is this?

a)

plant

b)

animal

95.
Bacteria is what kind of cell?
a)
Eukaryotic
b)
Prokaryotic
96.
What kind of cell is this?
a)
Eukaryotic
b)
Prokaryotic
97.
What is unicellular? 
a)
one cell 
b)
many cells 
c)
no nuclues 
d)
DNA 
98.
Plants and animal cells are examples of ___ cells 
a)
prokaryotic cells 
b)
eukaryotic cells 
99.

jello-like material, fills the space between cell organelles, is where many chemical reactions occur

a)

cytoplasm

b)

chromatin

c)

chloroplast

d)

cell membrane

100.
What am I?
a)
mitochondria
b)
lysosomes
c)
chloroplast
d)
endoplasmic reticulum

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