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Midterm Study Practice 2023

Total questions: 104

Worksheet time: 1hrs 24mins

Name
Class
Date
1.
Carbohydrates are made of... 
a)
C H O
b)
C H O N
c)
C H O N P
d)
C H O N S
2.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
3.

When reading the ingredients on a nutrition facts label carbohydrates are written as a type of

a)

food additive

b)

enzyme

c)

sugar

d)

protein

4.
Which macromolecule stores energy, insulates us, and makes up the cell membrane?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
5.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
6.
Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
7.
Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?
a)
Water is an acid.
b)
Water is a versatile solvent.
c)
Water has a high heat capacity.
d)
 Water acts as a buffer.
8.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
9.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
10.
Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
11.

Which subatomic particle has a positive charge?

a)

proton

b)

neutron

c)

electron

d)

midichlorian

12.

Which subatomic particle has a negative charge?

a)

proton

b)

neutron

c)

electron

d)

cybertron

13.
_________ are composed out of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorus (P)
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
14.
A scientist is attempting to test for starch/complex carbohydrates and he/she added Lugol's (Iodine). The test tube turned black. Was there presence of starch/complex carbohydrates in the sample?
a)
Yes
b)
No
15.
A scientist is attempting to test for proteins and he/she added Biuret solution. The test tube turned violet/purple. Was there presence of proteins in the sample?
a)
Yes
b)
No
16.

A scientist is trying to test a solution for simple sugars. What solution or indicator should he/she use?

a)

Lugol's (Iodine)

b)

Benedict's

c)

Biuret solution

d)

Sudan III

17.
A scientist is attempting to test for Carbohydrates and he/she added Benedict's solution. The test tube turned Reddish Orange. Was there a presence of the Carbohydrates in the sample?
a)
Yes 
b)
No
18.

I am testing for the presence of glucose (a monosaccharide/simple sugar), which pair would indicate a positive test?

a)

Benedicts/light blue

b)

Iodine/brown

c)

Benedicts/orange

d)

Iodine/dark blue

19.

I am testing for the presence of starch, which pair would indicate a positive test?

a)

Benedicts/light blue

b)

Iodine/brown

c)

Benedicts/orange

d)

Iodine/dark blue

20.

What are the two ways (indicators) that test for the presence of lipids?

a)

Iodine

b)

Biuret

c)

Sudan

d)

Brown paper bag

21.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
22.
With what 3 letters do enzymes typically end?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
23.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered denature
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
24.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
25.
Where do substrates bind on an enzyme?
a)
voltage-gated channels
b)
surface receptor
c)
calcium channels
d)
active site
26.
What is structure A?
a)
Substrate
b)
Active site
c)
Enzyme
d)
Products
27.
Based on the graph, what is the optimal temperature for this enzyme? 
a)
15oC
b)
40oC
c)
30oC
d)
35oC
28.
What is the function of an enzyme?
a)
enzymes break themselves into small pieces
b)
enzymes slow down chemical reactions
c)
enzymes speed up chemical reactions
d)
enzymes combine products to form reactants 
29.
Letter C...
a)
active site
b)
enzymes
c)
substrate
d)
products
30.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
31.
The following figure is illustrating
a)
Dehydration Synthesis
b)
Hydrolysis
32.
The following figure is illustrating
a)
Dehydration Synthesis
b)
Hydrolysis
33.
Which organelle belongs in plant cells only?
a)
Cell Membrane
b)
Mitochondrion
c)
Chloroplast
d)
Nucleus
34.
Which organelle belongs in plant cells only?
a)
Cytoplasm
b)
Mitochondrion
c)
Cell Wall
d)
Nucleus
35.
Which organelle belongs in plant cells only?
a)
Cytoplasm
b)
Mitochondrion
c)
Large Central Vacuole
d)
Cell Membrane
36.

What kind of cell is this?

a)

plant

b)

animal

37.

What kind of cell is this?

a)

plant

b)

animal

38.
All cells come from other...
a)
cells 
b)
plants 
c)
nucleus 
d)
microscopes 
39.
Bacteria is what kind of cell?
a)
Eukaryotic
b)
Prokaryotic
40.
What am I?
a)
mitochondria
b)
lysosomes
c)
chloroplast
d)
endoplasmic reticulum
41.
The site of photosynthesis
a)
ribosome
b)
mitochondria
c)
chloroplast
d)
nucleus
42.
I am the "cleaner" because I break down food. Which organelle am I?
a)
Lysosomes
b)
Mitochondria
c)
Nucleus
d)
Cyto
43.
Which statement is a fundamental principle of the cell theory?
a)
All cells have a cell membrane (plasma membrane)
b)
Eukaryotic cells are larger than prokaryotic cells
c)
Living organisms are composed of cells
d)
The genetic material in cells is DNA
44.
Who was the first  person to see cells under the microscope and give them their name?
a)

Mattias Schleiden

b)
Robert Hooke
c)
Theordor Schwann
d)
Anton van Leeuwenhoek
45.
He discovered that all plants are made of cells:
a)
Anton van Leeuwenhoek
b)
Theordor Schwann
c)
Robert Hooke
d)
Mattias Schleiden
46.
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
47.

what is the function of a lysosome?

a)

To create energy for the cell; the powerhouse of the cell

b)

To command the cell what to do; the control center of the cell

c)

To remove waste and breakdown food using digestive enzymes from the cell

d)

To protect the cell

48.

What are the "protein-makers" of a cell?

a)

Ribosomes

b)

Mitochondria

c)

ER

d)

Golgi Body

49.
The function of the plasma membrane is....
a)
to regulate what enters and leaves the cell.
b)
fight bacteria and viruses that enter the cell.
c)
provide rigid support and protection to the cell.
d)
make sure each cell can move
50.
Where is the DNA found in a eukaryotic cell? 
a)
floating around in the cytoplasm 
b)
in the nucleus 
51.

I have membrane-bound organelles and DNA, what am I?

a)

Prokaryote

b)

Chloroplast

c)

Bacteria

d)

Eukaryote

52.

I have DNA but no membrane-bound organelles, what am I?

a)

Eukaryote

b)

Prokaryote

c)

Animal cell

d)

Plant cell

53.

Which does only eukaryotic cells contain?

a)

nucleus

b)

DNA

c)

cell membrane

d)

ribosomes

54.
This egg has shrunk, what type of solution was it placed in?
a)
hypotonic solution
b)
hypertonic solution
c)
isotonic solution
d)
active transport
55.
You put a cell into a solution, the cell grows. Is the solution hypotonic or hypertonic to the cell? 
a)
hypertonic
b)
hypotonic
c)
isotonic
d)
not enough information
56.
An ISOTONIC solution has a(n) ______________ concentration of solute (dissolved stuff) than inside the cell.
a)
lower
b)
equal
c)
higher
57.
If a cell is placed in a HYPOTONIC solution, water will move _________ of the cell, causing it to ___________.
a)
into, swell
b)
out of, shrivel
c)
in and out of the cell, stay the same
58.
What type of solution is this cell in?
a)
Isotonic
b)
Hypertonic
c)
Hypotonic
d)
diffused
59.
What type of solution is this cell in?
a)
Isotonic
b)
Hypertonic
c)
Hypotonic
d)
diffused
60.

The cell membrane is mostly made of what 2 biomolecules?

a)

Lipids and Nucleic acids

b)

Protein and Nucleic acids

c)

Carbohydrates and lipids

d)

Lipids and Proteins

61.

Proteins in the cell membrane serve what major function ?

a)

They provide the framework of the cell

b)

They serve as attachment site

c)

They help with transport of materials in and out of the cell

d)

They allow cells to communicate with other cells

62.

Which one does not belong with the others

a)

No energy

b)

Molecules move from high to low concentration

c)

Passive transport

d)

Energy needed

63.

Which is not a form of passive transport?

a)

Osmosis

b)

Facilitated diffusion

c)

Active transport

d)

Diffusion

64.

Passive transport moves molecules from...

a)

low concentration to high concentration

b)

high concentration to low concentration

65.

Which type of Passive transport uses the help of a transport protein?

a)

Osmosis

b)

Facilitated diffusion

c)

Simple diffusion

66.

What type of passive transport moves water molecules from high concentration to low concentration?

a)

Simple diffusion

b)

Osmosis

c)

Active transport

d)

Facilitated diffusion

67.

What biomolecule is number one pointing to?

a)

Lipid

b)

Protein

c)

Nucleic Acid

d)

Carbohydrate

68.
What type of transport is this?
a)
Endocytosis
b)
Diffusion
c)
Exocytosis
d)
Osmosis
69.
What type of transport is this?
a)
Endocytosis
b)
Facilitated Diffusion
c)
Active Transport Pump
d)
Osmosis
70.
What type of transport is this?
a)
Endocytosis
b)
Exocytosis
c)
Diffusion
d)
Sodium-Potassium Pump
71.
Even though the concentration of salt is high in some gland cells and low in the blood, these cells can move salt out of blood and into the cells.  This is an example of
a)
passive transport
b)
active transport
c)
diffusion
d)
osmosis
72.

Means only certain things may enter or exit a cell.

a)

selectively permeable

b)

isotonic

c)

hydrophilic

d)

none of these

73.

Which of the following involves the non selective uptake of tiny droplets of extracellular fluid?

a)

Exocytosis

b)

pinocytosis

c)

sodium pump

d)

phagocytosis

74.

How do the particles move in diffusion?

a)

From a region of low concentration to a region of high concentration

b)

From a region of high concentration to a region of low concentration

c)

From a region of low concentration to a region of low concentration

d)

From a region of high concentration to a region of high concentration

75.

What happens to the coffee particles when coffee is added to hot water?

a)

They sink to the bottom of the cup

b)

They spread out

c)

They clump together

76.
The picture  is an example of _________________.
a)
isotonic
b)
diffusion
c)
osmosis
d)
active transport
77.

Which cells do not have cell walls?

a)

plants

b)

fungi

c)

animals

d)

bacteria

78.

What is the function of this organelle?

a)

Sac that stores water, nutrients, and waste products

b)

Regulates what enters and leaves the cell

c)

Structures that transport and ship proteins like UPS

d)

Cite of cellular respiration also known as the powerhouse of the cell

79.

In what organelle is the genetic material found inside?

a)

Nucleus

b)

endoplasmic reticulum

c)

Mitochondria

d)

Lysosome

80.

Identify letter H.

a)

nucleus

b)

mitochondria

c)

cell wall

d)

vacuole

81.

Which structure sorts and packages proteins for release from the cell

a)

Structure B

b)

Structure E

c)

Structure F

d)

Structure G

82.

Small structures found attached to the rough endoplasmic reticulum are

a)

Lysosome

b)

Ribosome

c)

Mitochondria

d)

F1 particle

83.

Pigment responsible for green color is

a)

lycopene

b)

xanthoplyll

c)

chlorophyll

d)

caroten

84.

which of the following plastids is colorless and stores starch?

a)

Chromoplast

b)

Chloroplast

c)

Leucoplast

d)

Carotenoplast

85.

Which of the following plastids store pigments other than chlorophyl?

a)

Chromoplast

b)

Chloroplast

c)

Leucoplast

d)

Carotenoplast

86.
What is the function of ATP in living things?
a)
provides energy for cells
b)
stores genetic information
c)
provides structure in the nucleus
87.
Which of the following can be compared to a battery in need of recharging?  (empty wallet)
a)
ADP
b)
ATP
c)
Ribose
d)
Adenosine
88.
Which of the following results in the storage of energy in terms of the ATP/ADP cycle?
a)
The breaking of the bond between the 5-carbon sugar and the 1st phosphate group
b)
The addition of a phosphate group
c)
The removal of a phosphate group
d)
The addition of glucose 
89.
Which bond of the ATP molecule is broken in order to release energy?
a)
A
b)
B
c)
C
d)
D
90.

DOG

a)

HETEROTROPH

b)

AUTOTROPH

91.

DAISY

a)

HETEROTROPH

b)

AUTOTROPH

92.

FISH

a)

HETEROTROPH

b)

AUTOTROPH

93.

CACTUS

a)

HETEROTROPH

b)

AUTOTROPH

94.
____________________ provides the energy necessary for photosynthesis.
a)
water
b)
sunlight
c)
glucose
d)
soil
95.

During photosynthesis a plant takes in...

a)
sunlight and chlorophyll
b)
glucose and oxygen
c)
carbon dioxide and water
d)
sunlight and water
96.

During photosynthesis a plant produces...

a)
sunlight and chlorophyll
b)
glucose and oxygen
c)
carbon dioxide and water
d)
sunlight and water
97.
A leaf is green, what does this tell you about the light that is being absorbed?
a)
no light is being absorbed
b)
green is being refracted and all the colors are being absorbed.
c)
green is being absorbed and all the other colors are reflected
d)
green is being reflected and all the other colors are being absorbed
98.

The purpose of cellular respiration is to produce

a)
energy
b)
oxygen
c)
sugar
d)
protein
99.
What is the energy molecule?
a)
DNA
b)
ATP
c)
RNA
d)
AAA
100.

What are the inputs of cellular respiration?

a)

Glucose and Oxygen

b)

Sun, water and carbon dioxide

c)

Glucose and Water

d)

Sunlight and Water

101.

What are the outputs of cellular respiration?

a)

carbon dioxide, water and ATP

b)

ATP and Glucose

c)

Oxygen and Glucose

d)

Sunlight, Glucose and Water

102.

What two products does a plant make during photosynthesis?

a)
Water and Glucose
b)
Oxygen and Glucose
c)
Oxygen and Water
d)
CO2 and Glucose
103.

Cellular respiration occurs in

a)

chloroplasts

b)

mitochondria

c)

golgi aparatus

d)

thylakoid

104.

These organisms get their energy from photosynthesis:

a)

autotroph

b)

heterotroph

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