Font size
WorksheetsBIOL 1308 Exam 1 Review
Total questions: 38
Worksheet time: 19mins
Which level of organization is the most complex?
organ system
organism
species
organ
What is the smallest functional & organizational unit of life?
atom
molecule
organism
cell
Which of the following is NOT a characteristic of life?
Organization
Requires energy
Homeostasis
Movement
What are the three major divisions of all organisms?
kingdom
class
domain
species
Which below is the correct format for a scientific name?
genus species
Family genus
Genus species
family species
Biology is
the scientific study of relationships between organisms
the scientific study of life
the science of cells
the study of the scientific method
The process of science usually involves (Check all that apply)
hypothesis formation
making predictions
performing experiments
organizing organisms
analyzing data
A hypothesis is
a concept that is supported by a broad range of experiments and data
the results of an experiment
a way to test an explanation for a natural event
a tentative explanation for a natural event
The nucleus of an element contains
neutrons and electrons
neutrons and protons
protons and electrons
neutrons, electrons and protons
Changing the number of neutrons in an element creates a(n)
isotope
ion
new element
new property
Radioisotopes can be useful for medical treatment. Radioisotopes are
compounds that emit energy
atoms with different numbers of electrons
radioactive isotopes that emit energy
not real
Water is an example of a polar molecule. Polar means
unequal sharing of electrons
equal sharing of electrons
loss of an electron
gaining an electron
Which characteristic of water gives it properties important to life?
Polar bonds
Nonpolar bonds
Ionic bonds
Hydrogen bonds
Which property of water allows for high surface tension?
Adhesion
Cohesion
Acts as a solvent
Density
Why are buffers important in biological systems? Check all that apply.
Buffers are used in chemical reactions.
Buffers resist changes in pH.
Buffers help breakdown molecules.
Buffers help to maintain homeostasis.
The basic unit of any macromolecule is
a polymer
an element
an atom
a monomer
What important roles do lipids play in organisms? Check all that apply.
Energy storage
Membrane structure
Hormones and signalling
Speed up reactions
Help the immune system
Enzymes are used in biological reactions. Enzymes are
proteins
nucleic acids
lipids
carbohydrates
The monomers that make up proteins are
amino acids
peptides
nucleic acids
monosaccharides
DNA and RNA are
polypeptides
polysaccharides
lipids
nucleic acids
Why is ATP important for organisms?
It is created from an adenine molecule.
It has three phosphates.
It is the main source of energy for a cell.
It can be used to maintain homeostasis.
What are the two types of cells that exist?
Plant and animal
Bacteria and eukaryote
Animal and prokaryote
Eukaryote and prokaryote
What cell structure identifies prokaryotes from eukaryotes?
Ribosomes
Cell wall
Flagellum
Nucleus
Which statement below is a part of the cell theory? Check all that apply.
All organisms have cells.
Cells are the basic unit of life.
Cells are typically small.
All cells come from other cells.
There are only two types of cells.
Plasma membranes are found in all organisms.
True
False
Compared to prokaryotes, eukaryotes
undergo photosynthesis
are structurally complex
have ribosomes
have cell walls
The nucleus (check all that apply)
contains DNA
has a nucleolus
is only in eukaryotic cells
does not have a membrane
is the command center of the cell
Ribosomes make carbohydrates.
True
False
Which organelles are used to create energy for cells? (Check all that apply)
Mitochondria
Ribosomes
Nucleus
Chloroplasts
The function of the cytoskeleton is
to help maintain cell shape
to provide nutrients for the cell
to communicate with other cells
to provide energy for the cell
What was the first cell type based on fossil records?
Prokaryotes
Eukaryotes
The pattern of the plasma membrane is called
the lipid bilayer.
the fluid-mosaic model.
the fluid structure model.
semipermeable.
Which type of molecules can passively cross the plasma membrane? (Check all that apply)
Small molecules
Uncharged molecules
Macromolecules
Gases
Ions
What causes molecules to spread out in a defined space (diffusion)?
Equilibrium
Charge
Movement
Concentration gradient
If a cell is placed into an isotonic solution, what would happen?
Water moves into the cell.
Water moves out of the cell.
The cell will burst.
No net water movement.
Which type(s) of transport require energy? (Check all that apply)
Osmosis
Bulk transport
Active transport
Diffusion
Facilitated transport
Cells use exocytosis to release bulk materials like hormones.
True
False
The ECM contains structural proteins. What is the function of the ECM?
Provide extra support outside of cells
Produce energy outside of cells
Separate cells from each other
Allow cells to attach to each other
