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Sullivan Biology Midterm Review 2026

Total questions: 55

Worksheet time: 1hrs 24mins

Name
Class
Date
1.
Convert from meters to cm:  9 meters
a)
900 cm
b)
90 cm
c)
0.9 cm
d)
0.09 cm
2.
Convert 8 kilometers to meters
a)
800 m
b)
80,000 m
c)
8,000 m
d)
.008 m
3.

How many feet are in 5 yards?

(Note: 1 yard = 3 feet)

a)

1.67

b)
15
c)

1.66

d)

10

4.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
5.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
6.
I have two objects with the same volume but different masses.  Which object will be more dense?
a)
The object with less weight.
b)
The object with more weight.
c)
The object with more mass.
d)
The object with less mass.
7.

As Depth (km) into Earth increases, interior temperature _____

a)

increases

b)

decreases

c)

stays the same

8.

During which month is the greatest amount of runoff?

a)

May

b)

December

c)

June

d)

March

9.
The compound PO4 is...
a)
inorganic
b)
organic
10.
Is NaCl (table salt) a Organic or Inorganic Compound?
a)
Inorganic
b)
Organic
11.
Which compound is inorganic?
a)
Glucose (C₆H₁₂O₆)
b)
Ethane (C₂H₆)
c)
Carbon Dioxide (CO₂)
d)
Stearic Acid (C₁₈H₃₆O₂)
12.
The compound Fe2O is...
a)
inorganic
b)
organic
13.

Which biomolecules provide quick energy for the cell and also provide materials to build the cell membrane/wall?

a)

Carbohydrates

b)

Proteins

c)

Lipids

d)

Nucleic Acids

14.

Which biomolecules contains your genetic information?

a)

Proteins

b)

Lipids

c)

Carbohydrates

d)

Nucleic Acids

15.

Amino Acids are the monomers of __________.

a)

Nucleic Acids

b)

Proteins

c)

Carbohydrates

d)

Lipids

16.

Which biomolecules act as energy storage for the cell and also cushions and insulates organs?

a)

Carbohyrdates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

17.

Enzyme is a/an...

a)

carbohydrate

b)

lipid

c)

protein

d)

nucleic acid

18.

What SHAPE is DNA?

a)

single strand

b)

straight ladder

c)

double helix (twisted ladder)

d)

DNA has no shape

19.

In DNA. what base always pairs with A?

a)

A

b)

T

c)

C

d)

G

20.

In DNA, what base always pairs with C?

a)

C

b)

T

c)

A

d)

G

21.

If one strand of a DNA molecule has the following order of bases, what will be the correct order of bases on the complementary (matching) strand?

AATTGGCC

a)

AATTGGCC

b)

TTAACCGG

c)

GGCCAATT

d)

GACTGACT

22.

Which is NOT one of the three parts of a nucleotide?

a)

sugar

b)

base

c)

ribosome

d)

phosphate

23.

Fill in the matching bases that would appear on the top strand of the DNA molecule pictured, in order.


A G T C A T G A

a)

A G T C A T G A

b)

T T T A A A C C

c)

T C A G T A C T

d)

C A T G A G A T

24.
DNA replication results in two DNA molecules,
a)
each one with two original strands
b)
each one with two new strands
c)
each one with one new strand and one original strand
d)
one with two new strands and the other with two original strands
25.

Which organelle is the location where protein is made?

a)

Ribosome

b)

Nucleus

c)

Cytoplasm

d)

Nucleotide

26.

mRNA occurs during this process

a)

Translation

b)

Transcription

c)

Replication

d)

Delivery

27.

Which of the following is the complementary mRNA sequence to this DNA strand: AACTGAA

a)

UUGACUU

b)

TTGACTT

c)

AACTGAA

d)

AACUGAA

28.
The process to go from mRNA to a protein is called ____
a)
transcription
b)
rRNA
c)
replication
d)
translation
29.

What brings the amino acids to the ribosome to assemble a protein?

a)
mRNA
b)
tRNA
c)
rRNA
d)

DNA

30.

Which of the following are differences in the structure between RNA and DNA

a)

DNA uses deoxyribose sugar, RNA uses sugar ribose

b)

DNA pairs Adenine with Uracil, RNA pairs Adenine with Thymine

c)

DNA is a double helix, RNA is a single helix

d)

DNA pairs Adenine with Thymine, RNA pairs Adenine with Uracil

31.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
32.
How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?
a)
The two different cells become mutated
b)
The proteins expressed in each cell are different
c)
They actually have different DNA in the two types of cells.
d)
The genome of the different cells changes
33.
What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA
a)
Met-Pro-Ala-Val
b)
Met-Pro-Val
c)
Tyr-Gly-His
d)
Tyr-Gly-Arg-His
34.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
35.

Mutations are...

a)

Changes in the sequence of DNA

b)

Broken chromosomes

c)

Bad genes

36.

Mutations can be...

a)

Harmful

b)

Beneficial

c)

Neutral

d)

All of the Above

37.

A substitution mutation occurs when

a)

a base pair is missing from the DNA strand

b)

a base pair is added to the DNA strand

c)

a base pair is replaced with a different base pair

38.
DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
a)
Substitution
b)
Deletion
c)
Insertion
d)
Inversion
39.

Which is responsible for providing oxygen to cells?

a)

skeletal system

b)

digestive system

c)

muscular system

d)

circulatory system

40.

What is the relationship between the respiratory system and the circulatory system?

a)

The respiratory system exchanges oxygen and carbon dioxide with the circulatory system.

b)

The respiratory system exchanges oxygen and carbon monoxide with the circulatory system.

c)

The respiratory system exchanges oxygen and sugar with the circulatory system.

d)

The respiratory system exchanges oxygen and nitrogen with the circulatory system.

41.

Which two human body systems work closely together to distribute

nutrients from food throughout the body?

a)

muscular and skeletal

b)

digestive and circulatory

c)

circulatory and respiratory

d)

respiratory and digestive

42.

Which best explains how the muscular system relies on the respiratory

system?

a)

The respiratory system cools the muscular system.

b)

The respiratory system acts as the support system for the muscular

system.

c)

The respiratory system brings oxygen into the body for the muscular

system to use.

43.

Which statement best explains how a bacterial cell is capable of surviving as a single-celled organism?

a)

It is able to create new cells more slowly than other kinds of cells.

b)

It is large enough to capture the food it needs for growth.

c)

It is so small, it can survive in almost any place.

d)

It has the ability to carry out all its life functions.

44.

As the Earth warms, increased evaporation produces more clouds. Clouds increase albedo, reflecting more light away from the Earth. The temperature falls. Rates of evaporation fall.

a)

Positive Feedback Loop

b)

Negative Feedback Loop

45.

As the Earth warms, upper layers of permafrost melt, producing waterlogged soil above frozen ground. Methane gas is released into the environment. The greenhouse effect is enhanced. The Earth warms, melting more permafrost.

a)

Positive Feedback Loop

b)

Negative Feedback Loop

46.

When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. This is an example of a:

a)

Positive Feedback Loop

b)

Negative Feedback Loop

47.
Negative Feedback Loops:
a)
amplify processes
b)
prevent small changes from getting larger
c)
are initiated during childbirth
d)
are found only in plants
48.
If the environment gets cold, we will often shiver in order to:
a)
keep body temperature the same as the external temperature
b)
decrease body temperature
c)
increase body temperature
d)
regulate blood pressure
49.
How many daughter cells are produced in mitosis?
a)
1
b)
2
c)
4
d)
6
50.

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

a)

Metaphase

b)

Prophase

c)

Telophase

d)

Anaphase

51.

What is the purpose of Mitosis?

a)

Growth of an organism and Repair of damaged tissue

b)

To help the body get rid of extra cells

c)

To increase the amount of classwork you have to do

d)

To get rid of the nucleus

52.
Cells spend 90% of their time in this stage of the cell cycle. This is the reason you would see most cells in this stage if viewed under a microscope.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Interphase
53.
Before cells can divide, what must be copied?
a)
mitochondria
b)
cytoplasm
c)
DNA
d)
Cell Wall
54.
Name the phase:
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
55.

With a vaccine, the body builds up an immunity to the germ/pathogen even though you've never actually had the germ/pathogen.

a)

True

b)

False

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