WorksheetsAct 1: Cells
Total questions: 40
Worksheet time: 59mins
Eukaryotic cells:
do not usually have a nucleus.
have cell walls with peptidoglycan.
have nucleiods.
are usually smaller than prokaryotic cells.
have membrane-bound organelles.
Mitochondria are known for all of the following except that they do not:
extract energy from food.
have cristae.
carry out photosynthesis.
have two membranes.
have their own DNA.
Which of the following organelles would help you differentiate between plant and animal cells?
a ribosome
a peroxisome
a cell membrane
a centriole
a chloroplast
The cytoskeleton consists of microtubules, microfilaments, and intermediate filaments.
TRUE
FALSE
A major difference between prokaryotes and eukaryotes is that prokaryotes:
have a nucleus in their cells while eukaryotes do not.
are autotrophs while eukaryotes are not.
are not living organisms, while eukaryotes are.
have cell walls while eukaryotes do not.
do not have a nucleus in their cells while eukaryotes do.
If you asked learners to describe the Golgi apparatus on an exam, you would deduct points if a learner described it as:
studded with ribosomes.
a stack of membrane enclosed sacs.
a processing center.
involved with secretion of cellular components.
an organelle.
The original three components of the cell theory are that:
all organisms are made of one or more cells, the cell is the fundamental unit of life, and all cells come from preexisting cells.
all organisms have DNA, all organisms are made of cells, and all cells produce proteins.
all organisms are made of one or more cells, the cell is the fundamental unit of life, and all cells have a nucleus.
all organisms are made of one or more cells, all cells contain DNA, and all cells come from preexisting cells.
all organisms have DNA, DNA is the fundamental unit of life, and all cells come from preexisting cells.
All eukaryotic cells produce proteins. Proteins that will be secreted from the cell are made by ribosomes attached to the:
chloroplast.
rough endoplasmic reticulum.
Golgi apparatus.
mitochondrion.
cell wall.
The scientist given credit for first using the term "cell" to describe the basic unit of life was:
Mathias Schleiden.
Robert Hooke.
Carl Woese.
Rudolf Virchow.
J. Craig Venter.
The scientist given credit for adding the third component to the cell theory, all cells come from preexisting cells, was:
Robert Hooke.
Rudolf Virchow.
Carl Woese.
Theodor Schwann.
J. Craig Venter.
Which of the following are cellular digestion centers?
ribosomes and chloroplasts
peroxisomes and ribosomes
lysosomes and Golgi apparatus
lysosomes and peroxisomes
chloroplasts and ribosomes
The function of the nucleolus is:
photosynthesis.
to transport materials out of the nucleus.
to assemble DNA.
protein synthesis.
to assemble components of ribosomes.
Which is the correct sequence for levels of biological organization occurring beyond an organism?
ecosystem - population - biosphere - community
population - ecosystem - community – biosphere
community - population - biosphere – ecosystem
community - population - ecosystem – biosphere
population - community - ecosystem – biosphere
In plant cells, a central vacuole:
produces energy from food.
produces protein.
degrades molecules and organelles and maintains water pressure.
produces mRNA.
stores genetic information.
In cleaning up after lab, you have to sort cards into boxes. You would put all of the below cards into a box marked "ecosystem" except:
organisms.
biosphere.
populations.
community.
nonliving environmental components.
The most prominent organelle in most eukaryotic cells, that contains most of its DNA, is the:
nucleolus.
cell membrane.
endoplasmic reticulum.
ribosome.
nucleus.
If you wanted to demonstrate homeostasis to a friend, you could use as an example:
plants and animals needing energy sources.
cells having enough water to survive.
a population changing over time.
environmental conditions holding constant through time.
an organism maintaining nearly constant internal conditions.
If you observed a newly discovered 'thing' and tried to decide if it might be alive, what would be the weakest distinction for life?
homeostasis
movement
energy use
evolution
structural organization
Which component of the cell theory argues against life on Earth evolving from inorganic molecules?
The cell is the fundamental unit of all life.
All cells are either prokaryotic or eukaryotic.
Cells are small in size.
All organisms are made of one or more cells.
All cells come from preexisting cells.
Which of the following are the primary components of the cell membrane and contribute to its semi-permeability property?
proteins
enzymes
phospholipids
sugars
cholesterols
Why are cells called "the fundamental unit of life"?
All answers are correct.
Earliest life on Earth is hypothesized to have been single-celled.
Some cells are separate living entities that can survive individually.
Cells are the smallest unit of life that can function independently.
All known organisms have one or more cells.
The bacterium Staphylococcus aureus has which of the following?
None of the answer choices are correct.
cell membrane and nucleus
nucleus and ribosomes
DNA and nucleus
DNA and cell membrane
Homo sapiens is in which domain?
Protista
Eukarya
Archaea
Bacteria
Animalia
If you found an organism that was single-celled and had a nucleus, you would classify it as a member of the Archaea.
TRUE
FALSE
What do a pine tree, an octopus, and a bacterium have in common at the cellular level?
nuclei
cancerous tissues
nothing in common
blood supply
genetic material
The scientist(s) given credit for formulating the "cell theory" was (were)
Antony van Leeuwenhoek.
J. Craig Venter.
Robert Hooke.
Carl Woese.
Mathias Schleiden and Theodore Schwann
Chloroplasts are known for all of the following except being:
glucose factories.
found in some protists.
responsible for respiration.
found in plants.
organelles that carry out photosynthesis.
Penicillin halts bacterial infections by:
damaging the cell membrane.
causing the DNA of a bacterium to mutate.
stimulating a person's immune system.
interfering with the construction of the cell wall.
All answers are correct.
The four kingdoms included in the domain Eukarya are:
Archaea, Fungi, Plantae, and Animalia.
Protista, Fungi, Plantae, and Animalia.
Bacteria, Protista, Plantae, and Animalia.
Archaea, Bacteria, Plantae, and Animalia.
Bacteria, Fungi, Plantae, and Animalia.
The cell wall of bacteria:
All answers are correct.
gives bacteria distinct shapes.
may contain a capsule.
protects the cell.
helps prevent the cell from bursting.
Flagella can be
found on human sperm.
found on eukaryotic cells.
found on prokaryotic cells.
All of the answer choices are correct
used for movement.
The three domains in the Woese system of classification are
Fungi, Protista, and Animalia.
Archaea, Eukarya, and Protista.
Archaea, Bacteria, and Eukarya.
Bacteria, Animalia, and Plantae.
Monera, Bacteria, and Eukarya.
Which is the correct sequence for levels of biological organization within a multicellular organism?
organelle - molecule - atom - tissue - cell
atom - molecule - organelle - cell – tissue
molecule - atom - organelle - tissue – cell
cell - organelle - atom - tissue – molecule
atom - organelle - molecule - cell – tissue
All living organisms:
are either unicellular or multicellular.
are unicellular.
are multicellular.
are prokaryotes.
are eukaryotes.
Which of the following is not a characteristic of an animal cell membrane?
It has a bilayer of phospholipids.
It has a fluid mosaic structure.
It has a fluid structure.
It has a rigid structure.
It contains cholesterol.
You are sorting cards with pictures of organisms and their descriptions into groups. You would place the card with an osprey* and the description "organisms that obtain energy by consuming other organisms" with cards for other: * a large fish-eating bird of prey with long, narrow wings and a white underside and crown, found throughout the world.
plants.
heterotrophs.
autotrophs.
photosynthesizers.
producers.
A structure consisting of tissues organized to carry out a specific function defines a(n):
cell.
atom.
organ.
molecule.
population.
Which of the following are recycling centers for cells?
ribosomes and Golgi apparatus
endoplasmic reticulum and chloroplasts
All answers choices are correct.
mitochondria and nucleus
central vacuole and lysosomes
You are working on a forensics team and collect cells from a crime scene. The cells have a cell wall made of cellulose. This sample most likely came from:
a bacterium.
an archaean.
a plant
a fungus
an animal
What is the advantage of a mature red blood cell having a flattened shape rather than a spherical shape?
It saves energy by making more membrane relative to the volume of the cell.
It provides more membrane for the electron transport chains where oxygen is consumed.
It is easier for them to fit through arteries and veins.
It maximizes the relative surface area for gas exchange.
It provides more receptor sites for the membrane-bound hemoglobin molecules which transport oxygen.
