Font size
WorksheetsUnit 3.3 Review
Total questions: 34
Worksheet time: 18mins
The diagram shows the general structure of an amino acid. Which type of molecule is formed from amino acids?
lipids
carbohydrates
proteins
nucleic acids
Fats, oils and cholesterol are all types of what?
cell membranes
hormones
fatty acids
lipids
4. RNA and DNA are which type of macromolecules?
nucleic acid
lipid
protein
carbohydrate
The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements?
Enzymes function best at a specific temperature.
The body needs to be warm to prevent hypothermia.
The body is kept relatively warm to prevent too much enzyme action.
There is no connection between the two statements.
Like complex carbohydrates, proteins are macromolecules that serve many functions and can be chemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?
sequence of sugars
polymers of smaller subunits
lipids of large molecules
nucleotides of DNA
In living organisms, lipids function mainly as:
Sources of stored energy and transmitters of genetic information
Transmitters of genetic information and catalysts of chemical reactions
Catalysts of chemical reactions and components of cellular membranes
Sources of stored energy and components of cellular membranes
Carbohydrates are made of monomers called ___________
monosaccharides
nucleotides
amino acids
fatty acids
The element _______is found in all of the organic compounds.
oxygen
carbon
hydrogen
nitrogen
Nucleotides are monomers of
carbohydrates
lipids
proteins
nucleic acids
Fatty acids are the monomers of
carbohydrates
proteins
lipids
nucleic acids
The organic compounds that have many structural purposes and are used in many processes within the
cell including transport are called ____________________.
proteins
carbohydrates
nucleic acids
lipids
The macromolecules responsible for providing hereditary material are called ____________.
carbohydrates
proteins
lipids
nucleic acids
The structure pictured is showing which macromolecule?
Lipids, which are used to form the cell membrane and provide long term energy.
Proteins, which are used for structure and forms enzymes.
Nucleic acids, which are used to provide hereditary information.
Carbohydrates, which are used to provide quick energy.
Select all of the statements that are true of Eukaryotes:
have a nucleus
Do not have a nucleus
Have membrane-bound organelles
Do not have membrane-bound organelles
Select all of the following that are true of Prokaryotes:
Have a Nucleus
Do not have a nucleus
Have membrane-bound organelles
Do not have membrane-bound organelles
Select the organelles that are found only in plant cells:
Lysosomes
Chloroplasts
Cell wall
mitochondria
Which of the following is the main substance found in the cell wall of plants?
lipids
fructose
glucose
cellulose
Based off of the graph which of the following is true of the enzyme involved in this reaction?
This enzyme functions best at a Temperature of ~20 degrees and a pH of ~8
This enzyme functions best at a Temperature of ~40 degrees and a pH of ~6.5
This enzyme functions best at a Temperature of ~60 degrees and a pH of ~5
This enzyme does not function at any temperature or pH
The molecules that enzymes work with to speed up reactions are called __________.
lipids
catalysts
substrates
enzyme helpers
___________ are responsible for the rate of a reaction.
Substrates
Reactants
Products
Enzymes
Which of the following correctly matches the macromolecules with the elements present in each macromolecule?
Protein: C H O, Carbohydrates: C H O N, Lipids: C H O N P, Nucleic Acids: C H O
Protein: C H O, Carbohydrates: C H O, Lipids: C H O, Nucleic Acids: C H O
Protein: C H O N P, Carbohydrates: C H O, Lipids: C H O, Nucleic acids:C H O N
Protein: C H O N, Carbohydrates: C H O, Lipids: C H O, Nucleic acids:C H O N P
From the image given, which direction will the water move through the membrane?
From the right side to the left
From the left side to the right
There will be no water movement
Select the 3 principles of the Cell Theory from the options below:
The cell is the basic unit of structure and organization in organisms.
Cells arise from pre-existing cells.
Cells are able to spontaneously generate.
All living organisms are composed of one or more cells.
Some organisms do not need to be composed of cells.
What is the function of the ribosome?
Produce Energy
Protein Synthesis
Digestion
Storage of genetic material
What is the function of mitochondria?
Protein Synthesis
Structure
Converting nutrients to energy
Storing genetic material
What of the function of the lysosome?
convert nutrients into energy
digestion and waste removal inside the cell
Store water and nutrients within the cell
Stores the genetic material of the cell
What is the function of the nucleus?
Store genetic material of the cell.
Store water and nutrients within the cell.
Protein synthesis.
Convert nutrients into energy
Which of the following are found in only plant cells
Cell wall
lysosomes
Large central Vacuole
chloroplasts
Which of the following are found in all cell types?
chloroplasts
mitochondria
DNA
ribosomes
Which type of transport requires an input of energy?
Osmosis
Simple diffusion
Active Transport
Passive Transport
Which type of transport is being shown?
Endocytosis
Osmosis
Protein Pump
Facilitated Diffusion
Which does NOT require energy to occur?
Endocytosis
Exocytosis
Active Transport
Passive Transport
Which type of transport is being shown?
Active transport
Passive Transport
Osmosis
Diffusion
Active transport uses _____________ to move ___________ the concentration gradient.
energy; with
no energy; with
energy; against
no energy; against
