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Unit 5

Total questions: 80

Worksheet time: 1hrs 22mins

Name
Class
Date
1.

What is a multicellular organism?

a)

an organism with one cell

b)

an organism with many cells

c)

an organism where organelles replace organs

2.

Which is NOT a level of organization in multicellular organisms?

a)

tissue

b)

organ

c)

cell

d)

organelle

3.

True or False: Tissues are made of several different types of cells

a)

True

b)

False

4.

Which of the following is the correct order of the levels of organization from smallest to largest?

a)

organ system, orgsn, tissue, cell

b)

tissue, orgsn system, cell, organ

c)

cell, tissue, organ, organ system

5.
a group of organs that work together
a)
organ system
b)
tissue
c)
cells
d)
organelle
6.

The liver is a dark red structure in the human body that releases bile and hormones. At what level of organization is the liver?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

7.

The most basic unit of organization in animals is the

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

8.

Which sequence BEST describes the levels of organization from simplest to most complex?

a)

Organism, Organ, Tissue, Cell

b)

Cell, Tissue, Organ, Organ System

c)

Cell, Organ, Tissue, Organ System

d)

Organism, Cell, Organ System, Organ

9.

The cells in a multicellular organism are specialized to perform a particular function. A group of related cells that work together make up _____.

a)

An organism

b)

An organ system

c)

An organ

d)

A tissue

10.

Justin has learned that the brain, spinal cord, and peripheral nerves work together. What do they combine to form?

a)

A cell

b)

A tissue

c)

An organ

d)

An organ system

11.
A tissue is composed of a group of
a)
similar cells
b)
related organelles
c)
organ systems
d)
related organs
12.
The tissue level of organization comes 
a)
after cells
b)
after organs
c)
after organ systems
d)
this is not an organizational level
13.
In multicellular organisms
a)
all cells contain the same DNA
b)
all cells have different DNA
c)
cells have different DNA based on their function
d)
cells do not have DNA
14.
In what way is the DNA of a nerve cell different from the DNA of a muscle cell?
a)
The DNA is the same but each cell contains different genes
b)
The DNA is the same but different genes are turned on and turned off in each cell
c)
The DNA is different, but the same genes are turned on and off in each cell
d)
The DNA is different, but each cell contains the same genes
15.
Which best explains why humans are multicellular organisms?
a)
Human cells are too small to function alone.
b)
Human cells join together to form one large cell.
c)
Humans need many cells to carry out life processes.
d)
Humans have many systems that perform the same function.
16.
The __________ is the main organ of the nervous system.
a)
heart
b)
lungs
c)
brain
d)
skin
17.

This type of cell sends messages throughout the body in the form of electrical impulse.

a)

nerve cell

b)

adipose cell

c)

muscle cell

d)

skin cell

18.

The ___________ is the basic unit of life.

a)

organ

b)

cell

c)

atom

d)

tissue

19.
What does NOT happen during interphase?
a)
growth
b)
DNA replication 
c)
obtaining nutrients
d)
cell divison
20.
Cells spend the majority of their lives in
a)
Interphase
b)
Mitosis
c)
Synthesis 
d)
Gap 2
21.

DNA is replicated during ______ of the cell cycle.

a)

Gap 1

b)

Synthesis (S phase)

c)

Gap 2

d)

Gap 0

22.
What is cytokinesis?
a)
This is when two cells merge together to make one giant cell.
b)
The stage where chromosomes migrate to the opposite ends of the cell. 
c)
The stage of the cell cycle where the rest of the cell divides after mitosis is complete.
d)
The stage in which DNA condenses into chromosomes.
23.
What occurs during G1?
a)
Checkpoint after S phase
b)
Chromosomes line up at the equator.
c)
The cell grows and develops.
d)
Spindle fibers separate chromosomes to opposite poles of the cell. 
24.
True or False:
Normal cells grow and divide continuously.
a)
True
b)
False
25.

During most of interphase, DNA is found in a relaxed form called

a)

chromosome

b)

centromere

c)

centriole

d)

chromatin

26.

During mitosis, DNA is found in the condensed form called a

a)

chromosome

b)

centromere

c)

centriole

d)

chromatin

27.

In prophase of mitosis, chromosomes

a)

form and the nuclear envelope disappears.

b)

are pulled toward opposite ends of the cell.

c)

chromosomes line up along the equator of the cell

d)

chromosomes begin to decondense and the two new nuclei begin to form.

28.

In metaphase of mitosis, chromosomes

a)

form and the nuclear envelope disappears.

b)

are pulled toward opposite ends of the cell.

c)

chromosomes line up along the equator of the cell

d)

chromosomes begin to decondense and the two new nuclei begin to form.

29.

In anaphase of mitosis, chromosomes

a)

form and the nuclear envelope disappears.

b)

are pulled toward opposite ends of the cell.

c)

chromosomes line up along the equator of the cell

d)

chromosomes begin to decondense and the two new nuclei begin to form.

30.

In telophase of mitosis, chromosomes

a)

form and the nuclear envelope disappears.

b)

are pulled toward opposite ends of the cell.

c)

chromosomes line up along the equator of the cell

d)

chromosomes begin to decondense and the two new nuclei begin to form.

31.

After mitosis, the cytoplasm and organelles are divided between the two new forming cells in a process called

a)

centriole

b)

chromatin

c)

cytokinesis

d)

centromere

32.

This process is the programmed death of a cell

a)

stem cell

b)

regulation

c)

apoptosis

d)

cytocide

33.

When cells go through mitosis repeatedly without entering interphase, this results

a)

arthritis

b)

cancer

c)

mutation

d)

diabetes

34.

During which phase of the cell cycle does the cell spend the most time?

a)

Mitosis

b)

Cytokinesis

c)

Interphase

35.

Match the image to the correct answer

a)

1.

Prophase

b)

2.

Metaphase

c)

3.

Anaphase

d)

4.

Telophase

e)

5.

Cytokinesis

36.

Label the parts of the Cell Cycle

a)

G1

b)

S phase

c)

G2

d)

Mitosis

1
2
3
4
1)
2)
3)
4)
37.

Mitosis is the division of the​ (a)  

Choose from the below words
nucleus
cytoplasm
38.

Click where DNA replication takes place

A
B
C
D
39.

Cytokinesis is the division of the ​ (a)  

Choose from the below words
cytoplasm
nucleus
40.

Match each phase with its correct description

a)

Cell grows rapidly while carrying out normal functions.

1.

G1 Phase

b)

Cells must replicate their DNA before cell division to ensure that identical genetic information is passed to  the next generation.

2.

S Phase

c)

  • FINISHES GROWING

  • Errors in DNA replication are checked- if something is wrong, cell needs to fix its errors before it divides!

3.

G2 Phase

41.

What are the THREE MAIN events in cell division

a)

INTERPHASE

b)

CYTOKINESIS

c)

PHOTOSYNTHESIS

d)

MITOSIS

42.

Put the Cell Cycle phases in order

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

e)

Cytokinesis

1)
2)
3)
4)
5)
43.

What happens during G1 phase

a)

Cell grows rapidly

b)

DNA replication

c)

Checks for errors in DNA

d)

Cell divides

44.

What happens during G2 phase

a)

Cell grows rapidly

b)

DNA replication

c)

Checks for errors in DNA

d)

Cell divides

45.

The first phase of Mitosis is called ________

a)

Prophase

b)

Anaphase

c)

Interphase

d)

Telophase

46.

Which is NOT a phase of the cell cycle

a)

Interphase

b)

Monophase

c)

Anaphase

d)

Telophase

47.

Put the Cell Cycle events in order

a)

Cell grows

b)

DNA replicates

c)

Cell prepares for Mitosis

d)

Cell divides

1)
2)
3)
4)
48.

In which stage of the cell cycle is protein and organelle synthesis

a)

G1

b)

S phase

c)

G2

d)

Cytokinesis

49.

What is the result of the cell cycle?

a)

Three cells

b)

Four daughter cells

c)

2 identical cells

d)

1 clone cell

50.

How are traits passed from parent to offspring?

a)

genes

b)

jeans

c)

gifting

d)

necleotides

51.

Where can you find DNA in a cell?

a)

ribosomes

b)

nucleus

c)

cytoplasm

d)

cell wall

52.

DNA has (a)   types of bases.

53.

What base goes with Thymine?

a)

cytosine

b)

guanine

c)

thymine

d)

adenine

54.

What base goes with cytosine?

a)

guanine

b)

thymine

c)

adenine

d)

cytosine

55.

What would go with this base combination ATC

(a)  

56.

What goes with this Base Combination ACC

(a)  

57.

Two bases that are complementary are called a

a)

phosphate

b)

Sugar

c)

Nucleotide

d)

Base Pair

58.

What makes up the building blocks of the DNA Ladder

a)

Acids

b)

Nitrogenous Bases

c)

Sugars

d)

Phosphates

59.

A section of DNA that codes for a type of trait is called a

(a)  

60.

Eye color, hair color, having freckles, etc. are examples of:

a)

DNA

b)

Chromosomes

c)

Genes

d)

Traits

61.

The part of the cell that contains chromosomes and genes is the:

a)

Mitochondria

b)

Nucleus

c)

Chloroplast

d)

Ribosomes

62.
a)

1

b)

2

c)

3

d)

4

63.
a)

1

b)

2

c)

3

d)

4

64.

The picture shows 46 chromosomes taken from a human:

a)

Male, because there are two X chromosomes

b)

Male because there is an X and a Y

c)

Female because there are two X chromosomes

d)

Female because there is an X and a Y

65.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
66.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
67.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
68.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
69.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
70.

The number of human chromosomes is

a)

23

b)

46

c)

92

d)

64

71.
 Dominant alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
72.
 Recessive alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
73.

Alleles are the different forms of a gene that is expressed as

a)

a letter

b)

two capital letters

c)

two lower case letters

d)

a phenotype

74.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
75.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
76.

Humans have 22 chromosomes in all. They inherit 11 from one parent and 11 from the other.

a)

true

b)

false

77.

This model can be used as evidence to support which claim?

a)

Proteins are found inside of chromosomes and chromosomes make up proteins.

b)

DNA makes up the majority of a cell and contributes to the functions of chromosomes.

c)

Chromosomes are found in the nucleus of all cells and they contain long strands of DNA and proteins.

78.

Genes are found within bands of DNA. Which sentence best describes the function of a gene.

a)

Genes create more DNA for the organism to use later.

b)

Genes create instructions that tell cells which proteins to make.

c)

Genes create chromosomes for organisms to pass down to their offspring.

79.

This model best shows...

a)

A DNA sequence with a possible mutated gene.

b)

A DNA sequence with more than one chromosome.

c)

A DNA sequence with normal genes.

80.

Select all of the examples of traits:

a)

Hair color

b)

Being tall or short

c)

Chromosomes

d)

Having a good report card.

e)

Having 6 fingers.

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