Font size
S
M
L
XL
WorksheetsBiology Midterm Review
Total questions: 119
Worksheet time: 2hrs 44mins
Name
Class
Date
1.
What part of our cells holds our DNA?
a)
cytoplasm
b)
cell membrane
c)
nucleus
d)
ribosomes
2.
What has DNA?
a)
animals
b)
plants
c)
bacteria
d)
all of the above
3.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
4.
Which of the following units are repeatedly joined together to form a strand of DNA?
a)
amino acids
b)
nucleotides
c)
fatty acids
d)
polysaccharides
5.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
6.
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
7.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
8.
What is the relationship between a protein, the cell, and DNA?
a)
DNA is produced by protein which is produced in the cell
b)
Protein is composed of DNA which is produced in the cell
c)
DNA controls the production of protein in the cell
d)
A cell is composed of DNA and protein
9.
Where does Translation take place?
a)
RNA
b)
ribosome
c)
nucleus
d)
chromosome
10.
Specific proteins produced in a cell are directly related to the
a)
number of mitochondria in the cell
b)
types of ribosomes in the cell
c)
sequence of sugars and phosphates in the cell
d)
sequence of nucleotides in the DNA
11.
The process of making RNA (i.e. mRNA) from DNA is called
a)
Replication
b)
Transcription
c)
Translation
d)
Protein synthesis
12.
Which shows the correct complementary base pairing for DNA?
a)
C-A, T-G
b)
A-G, C-T
c)
C-G, U-A
d)
T-A, G-C
13.
A segment of DNA that codes for a protein is called a...
a)
Enzyme
b)
Mutation
c)
Gene
d)
Complimentary
14.
Which of the following displays the correct order of DNA replication?
1. Sugar and phosphate groups form the side of each new strand
2. DNA unzips
3. The bases attach from a supply in the cytoplasm
4. DNA unwinds
1. Sugar and phosphate groups form the side of each new strand
2. DNA unzips
3. The bases attach from a supply in the cytoplasm
4. DNA unwinds
a)
4-2-3-1
b)
2-4-1-3
c)
2-4-3-1
d)
4-2-1-3
15.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
16.
The DNA sequence TACGAA would be transcribed to
a)
AUGCUU
b)
ATGCTT
c)
GCATCC
d)
GCAUCC
17.
mRNA is important, because it __________.
a)
Carries info from genes to ribosomes
b)
Carries amino acids to ribosomes
c)
Helps with RNA splicing
d)
Makes up ribosomes
18.
Translation is important because it __________.
a)
Converts mRNA into a polypeptide
b)
Replicates the genetic information in DNA
c)
Produces RNA from DNA molecules
d)
Recycles tRNA molecules for reuse
19.
What is the term for a three nucleotide sequence that codes for an amino acid? For example: AUG
a)
Nitrogen base
b)
Codon
c)
Amine
d)
Phosphate group
20.
Transfer RNA (tRNA) is important because it __________.
a)
Carries amino acids to the ribosome
b)
Carries ribosomes to the ER
c)
Carries glucose to mitochondria
d)
Carries mRNA out of the nucleus
21.
An organism's complete set of DNA is called its
a)
genome
b)
haploid number
c)
nucleotide
d)
genetic marker
22.
These combine to form the DNA molecule.
a)
nucleotides
b)
amino groups
c)
nitrogen compounds
d)
organelles
23.
Deoxyribose is a type of
a)
sugar
b)
lipid
c)
amino acid
d)
organic catalyst
24.
According to the base pairing rules, the nitrogen base guanine will always pair with
a)
cytosine
b)
thymine
c)
adenine
d)
lytosine
25.
What would the corresponding base sequence be for the following: GTCA
a)
CAGT
b)
GTCA
c)
AGTC
d)
TCAG
26.
The two strands of the DNA molecule are made by many nucleotides held together by ________ bonds.
a)
hydrogen
b)
nitrogen
c)
ionic
d)
oxide
27.
The shape of the DNA molecule is called a double
a)
helix
b)
spiral
c)
loop
d)
swirl
28.
The process in which the DNA makes a copy of itself is
a)
replication
b)
translation
c)
transcription
d)
mitosis
29.
The two strands of the DNA molecule are broken apart by the enzyme
a)
helicase
b)
ligase
c)
amylase
d)
triphase
30.
The point at which the two DNA strands are separated is called the
a)
replication fork
b)
point of origin
c)
site of synthesis
d)
transcription intersection
31.
After the two DNA strands have been separated, this enzyme assembles the nucleotides to created identical DNA strands.
a)
DNA polymerase
b)
protease inhibitor
c)
nucleic lactase
d)
insulin
32.
The sugar found in the RNA molecule is
a)
ribose
b)
lactose
c)
glucose
d)
sucrose
33.
In the RNA molecule, the nitrogen base adenine pairs with
a)
uracil
b)
thymine
c)
guanine
d)
cytosine
34.
The RNA molecule has _____ of nucleotides.
a)
one strand
b)
two strands
c)
multiple strands
d)
no strands
35.
The process in which each cell builds the proteins it is designed for is called protein
a)
synthesis
b)
replication
c)
transcription
d)
translation
36.
The DNA nucleotide is composed of three parts. Which two components make up the nucleotide backbone?
a)
ribose sugar and base
b)
ribose sugar and phosphate group
c)
nitrogen base and deoxyribose sugar
d)
deoxyribose sugar and phosphate group
37.
Which type of RNA delivers the genetic code to the tRNA?
a)
tRNA
b)
mRNA
c)
rRNA
d)
tmRtmRNA
38.
What organelle is called the "powerhouse" of a cell?
a)
Endoplasmic Reticulum
b)
Nucleus
c)
Mitochondria
d)
Nucleolus
39.
What is the function of the mitochondria?
a)
Structure that manufactures ribosomes
b)
Structures that converts nutrients to energy
c)
Stack of membranes that packages chemicals
d)
Structure that contains DNA and directs the cell
40.
What is the function of the vacuole?
a)
Sac that stores water, nutrients, and waste products
b)
Sac filled with digestive chemicals
c)
Jelly-like substance within the plasma membrane
d)
stack of membranes that packages chemicals
41.
Where does photosynthesis occur?
a)
mitochondria
b)
stomata
c)
xylem
d)
chloroplast
42.
I make proteins for the cell. What am I?
a)
ribosome
b)
mitochondria
c)
chloroplast
d)
lysosome
43.
What can only be found in plant cells?
a)
Cell membrane
b)
Vacuole
c)
Chloroplast
d)
Mitochondrion
44.
The two kinds of cells are Prokaryotes and Eukaryotes. How are they different?
a)
Prokaryotes have a nucleus.
b)
Eukaryotes have a nucleus.
c)
Prokaryotes are plant cells.
d)
There is no difference.
45.
What cell part is NOT found in all cells?
a)
Cell Wall
b)
Cell Membrane
c)
Cytoplasm
d)
Genetic Material
46.
Complex cell. Can be plant or animal. Contains membrane bound organelles.
a)
Eukaryotic Cell
b)
Prokaryotic Cell
c)
Bacteria
d)
Blood cell
47.
This organelle takes food and turns it into ENERGY for plant and animal cells.
a)
Chloroplast
b)
Mitochondria
c)
Lysosome
d)
Ribosome
48.
I am a protein packaging and shipping machine! Who am I?
a)
vacuole
b)
ribosome
c)
endoplasmic reticulum
d)
golgi apparatus
49.
The _____________ is like JELL-O, and is a gel-like fluid that fills plant and animal cells, and is where the organelles are found.
a)
Cytoplasm
b)
Cell Membrane
c)
Cell Wall
d)
JELL-O
50.
This can be found in the nucleus, and are tiny strands that contain the instructions for directing the cell's functions.
a)
DNA/Chromatin
b)
Chloroplasts
c)
Golgi Bodies
d)
ER
51.
This organelle is like a train station in a city. It can be found in both plant and animal cells. This organelle has passageways within the cell that carry proteins and other materials from one part of the cell to another.
a)
Endoplasmic Reticulum
b)
ET
c)
Golgi Bodies
d)
Nucleolus
52.
The organelles that clean plant and animal cells by using chemicals to break down food and worn out cell parts are ______________.
a)
Lysosomes
b)
Mitochondria
c)
Nucleolus
d)
Cell Wall
53.
This organelle controls what goes in and out of plant and animal cells.
a)
Cell Wall
b)
Cell Membrane
c)
Cytoplasm
d)
Cytoplasm
54.
Prokaryotic
a)
are single celled organisms that do not have a nucleus or membrane bound organelles
b)
a protective layer that covers the the cells surface and acts as a barrier
c)
is the smallest unit that can preform all he processes necessary for life
55.
Which of the following structure is where cellular respiration occurs in the cell?
a)
nucleus
b)
cytoplasm
c)
mitochondria
d)
vacuoles
56.
This cell would be classified as a(n) ________________ cell.
a)
prokaryotic
b)
eukaryotic
c)
plant
d)
virus
57.
Structures that allow the cell to live, grow and reproduce. These structures have specific functions.
a)
cell
b)
organs
c)
ribosomes
d)
organelles
58.
Which organic molecule is paired with its function?
a)
nucleic acid : to store energy
b)
proteins : to provide insulation
c)
lipids : to regulate metabolic
d)
carbohydrate : to provide quick–release energy
59.
Which is an example of a lipid
a)
fat
b)
starch
c)
glucose
d)
hemoglobin
60.
Which subunits make up the structure of all proteins?
a)
glucose
b)
amino acids
c)
carbohydrates
d)
fatty acids
61.
Glucose (sugar) is an example of a
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
62.
Lipids are made up of which of the following?
a)
glycerol and fatty acids tails
b)
glycerol and monolipids
c)
fatty acids and phosolipids
d)
amino acids and nucleotides
63.
Which is a Carbohydrate's monomer?
a)
Sugar
b)
Amino acids
c)
Monosacharide
d)
Nucleotide
64.
Glycerol and fatty acids combine to form...?
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
65.
Carbon, Hydrogen, Oxygen and Nitrogen are elements in what biomolecule?
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic acid
66.
I am responsible for long term energy storage in mammals.
a)
Protein
b)
Lipid
c)
Carbohydrate
d)
Nucleic Acid
67.
What is the following molecule?
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
68.
What is another word for monomer?
a)
building block
b)
one sugar
c)
polymer
d)
monosaccharide
69.
The word saccharide means:
a)
sugar
b)
glucose
c)
sweetener
d)
carbohydrate
70.
The best definition of "organic" in Biology would be:
a)
to be "fresh"
b)
to be alive
c)
to be chemical-free
d)
to contain Carbon and Hydrogen
71.
What is the chemical formula for Glucose?
a)
C12H6 O12
b)
CHO
c)
C6H12O6
d)
C1H2O1
72.
Which is NOT a carbohydrate?
a)
chitin
b)
glycogen
c)
starch
d)
glycerol
73.
Which of the following is an "example" of hydrolysis?
a)
A phone brekaing apart
b)
A castle being built with legos
c)
A polypeptide chain connecting to other polypeptides.
d)
Water sticking to itself.
74.
This is the area on an enzyme that the substrate attaches.
a)
active site
b)
product
c)
catalytic region
d)
reactant site
75.
Enzymes will make a reaction go _______ and use ______ energy.
a)
faster, less
b)
faster, more
c)
slower, less
d)
slower, more
76.
Enzymes are capable of increasing the rate of a chemical reaction within a living cell. Enzymes accomplish this through which of the following means?
a)
reducing the number of products
b)
reducing the activation energy
c)
increasing the temperature of the cell
d)
increasing the concentration of reactants
77.
Which factor denatures a enzyme?
a)
Excessive heat
b)
Nothing can
c)
Exposure to light
d)
Exposure to bacteria
78.
Any substance that is acted upon by an enzyme is called a(n)?
a)
Coenzyme
b)
Substrate
c)
Vitamin
d)
Polypeptide
79.
Which line represents an enzyme-catalyzed reaction?
a)
Line 1
b)
Line 2
80.
In a chemical reaction, a reactant binds to an enzyme at a region known as the
a)
catalyst.
b)
product.
c)
substrate.
d)
active site.
81.
Nuclear membrane forms around chromosomes and begins to separate.
a)
Anaphase
b)
Telophase
c)
Prophase
d)
Interphase
82.
a)
Prophase
b)
Interphase
c)
Anaphase
d)
Telophase
83.
a)
Anaphase
b)
Cytokinesis
c)
Telophase
d)
Metaphase
84.
a)
Cytokinesis
b)
Interphase
c)
Anaphase
d)
Metaphase
85.
a)
Anaphase
b)
Cytonkinesis
c)
Interphase
d)
Prophase
86.
a)
Interphase
b)
Anaphase
c)
Telophase
d)
Prophase
87.
Which is Metaphase?
a)
A
b)
E
c)
C
d)
F
88.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
89.
How many chromosomes do humans have?
a)
46
b)
21
c)
10
90.
The time between cell divisions in the life cycle of the cell is called
a)
anaphase
b)
interphase
c)
prophase
d)
metaphase
91.
Asexual reproduction will result in
a)
Identical offspring to the parent
b)
Twins
c)
Meiosis
d)
Non-identical offspring to the parent
92.
Where are centromeres found?
a)
On a chromatin
b)
Between 2 daughter chromatids
c)
In the nucleus
d)
Only during prophase
93.
Chromatin is found during which phase?
a)
Prophase
b)
Metaphase
c)
Interphase
d)
Telophase
94.
90% of the cell's life is spent during what stage?
a)
Prophase
b)
Anaphase
c)
Metaphase
d)
Interphase
95.
What PIGMENT absorbs sunlight for photosynthesis?
a)
chloroplast
b)
thylakoid
c)
grana
d)
chlorophyll
96.
Why is photosynthesis important?
a)
creates oxygen for animals to breath
b)
becomes a food source for animals and humans
c)
creates food for plants to use
d)
all of these are correct
97.
Where does carbon dioxide enter plants?
a)
The leaves (in the holes called Stomata)
b)
Flowers
c)
Roots
d)
Stem
98.
Where does photosynthesis happen?
a)
cells in the leaf act like nature's solar panels to collect light
b)
chloroplasts are structures (aka organelles) inside the leaf cells where photosynthesis occurs
c)
cholorphyll pigment inside the chloroplast absorbs light
d)
all of these answers are correct descriptions of where photosynthesis occurs
99.
Which living things do NOT use photosynthesis to make their own food?
a)
grass
b)
animals
c)
trees
d)
plant cells
100.
What are the products (what is made) of photosynthesis?
a)
Glucose and oxygen
b)
sunlight energy
c)
carbon dioxide and water
d)
chlorophyll
101.
The main source of energy for all life comes from ____.
a)
the Earth
b)
the moon
c)
the sun
d)
the food we eat/make
102.
Which plant structure is extremely necessary for photosynthesis to take place?
a)
leaves
b)
flower petals
c)
anthers
d)
pistils
103.
What is another name for glucose?
a)
Chlorophyll
b)
Chloroplasts
c)
Stomata
d)
Sugar
104.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
105.
A plant is releasing a gas. What is the most likely gas?
a)
co2
b)
methane
c)
water vapor
d)
oxygen
106.
What is the site of cellular respiration in a cell?
a)
stomata
b)
chloroplast
c)
mitochondria
d)
chlorophyll
107.
In what type of cells does cellular respiration take place?
a)
Plant cells
b)
Animal Cells
c)
Both plant and animal cells
d)
Red blood cells
108.
Cellular Respiration's goal is to
a)
make water
b)
make ATP
c)
make glucose
d)
make oxygen
109.
What are the reactants in the equation for cellular respiration?
a)
oxygen and lactic acid
b)
carbon dioxide and water
c)
glucose and oxygen
d)
water and glucose
110.
Light does not reach the bottom of the ocean, yet certain species live there. Which best explains how species on the bottom of the ocean get energy to live?
a)
Algae and bacteria produce energy through photosynthesis.
b)
Hydrothermal vents produce energy through chemical reactions.
c)
Dead plants and animals produce energy through decomposition.
d)
Light comes from the core of the earth.
111.
Deep ocean technology has discovered organisms in hydrothermal vents that do not rely on sunlight to survive. What do these organisms use as their energy source?
a)
chemosynthesis
b)
electrical charge
c)
hydropower
d)
thermal heat
112.
Which is most likely to be the energy source for organisms living in hydrothermal vents?
a)
oxygen
b)
sunlight
c)
methane or sulfur
d)
carbon dioxide
113.
Part 1
a)
Eyepiece
b)
Body Tube
c)
Arm
d)
Objective
114.
Part 2
a)
Objectives
b)
Body Tube
c)
Revolving Nosepiece
d)
Stage
115.
This moves the specimen up or down to adjust the slide containing specimen
a)
Fine Adjustment Knob
b)
Coarse Adjustment Knob
c)
Stage
d)
Diaphragm
116.
Used to control the amount of light reaching the specimen
a)
Illuminator
b)
Stage
c)
Eyepiece
d)
Diaphragm
117.
What is one of the steps you should do before a lab?
a)
Eat
b)
Tie your hair back
c)
Start homework early
d)
Put lab equipment away
118.
There is an accident and you burn your finger. What do you do?
a)
Wrap it up
b)
Nothing, finishing the lab is more important
c)
Notify the teacher and apply first aid as soon as possible
d)
Run to the nurse
119.
Approved eye protection devices (such as goggles) are worn in the laboratory
a)
to avoid eye strain
b)
to improve your vision
c)
only if you do not have corrective glasses
d)
any time chemicals, heat, or glassware are used
Reset
