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Worksheets(7) Cell Unit Review
Total questions: 41
Worksheet time: 21mins
What term describes the smallest unit that can perform all of the functions necessary for life?
a single cell
a cell nucleus
a cell membrane
a multicellular organism
Eukaryotic cells and prokaryotic cells have some parts in common. Which of the following pairs of parts would you find in both types of cells?
cytoplasm and nucleus
cell membrane and cytoplasm
DNA and membrane-bound organelles
cell membrane and membrane-bound organelles
According to Theodor Schwann, all parts of organisms are made up of which of the following?
cells
nuclei
organs
organelles
Robert Hooke was the first person to describe cells. Which of the following instruments did he use to make his observations?
What did Robert Virchow observe about cell division?
cells have a nuclei
cells move around
cells have cell membranes
cells come from other cells
Some dog foods contain corn and wheat that provide the dog with carbohydrates. Why are carbohydrates important to cell processes?
They make amino acids.
They form cell membranes.
They are a source of energy.
They help chemical processes happen.
Ms. Salis explains to her class that sodium (Na) and chlorine (Cl) atoms bond to make table salt (NaCl). Which is the best description of table salt?
It is a cell.
Its is an atom
It is an element.
It is a compound.
Which of these is one of the six most common elements found in the human body?
iron
helium
oxygen
water
Alejandro is doing a science experiment. He is given a substance made up of one of the four main types of molecules found in the cells of living things. He notices that the substance does not mix with water. Based on the fact that it does not mix with water, what can Alejandro conclude about the molecule?
It is a lipid.
It is a protein
It is a nucleic acid.
It is a carbohydrate.
DNA stores genetic information. What type of molecule is DNA?
lipid
protein
nucleic acid
carbohydrate
Under a high-powered microscope, Dan sees a cellular organelle. The organelle has a double membrane, and the inner membrane is folded. The organelle contains its own DNA. Which organelle does Dan see?
endoplasmic reticulum
mitochondrion
nucleus
ribosome
In what way could two eukaryotic cells be different from each other?
One eukaryotic cell could have cytoplasm while another does not.
One eukaryotic cell could have a cell membrane while another does not.
Two eukaryotic cells could differ in the number and types of organelles they contain.
Two eukaryotic cells could differ in the number and types of prokaryotes they contain.
Which of the following describes the cytoskeleton?
a web of proteins that gives shape and support to the cell
a membrane-bound organelle that contains genetic material
the outer covering of a cell that separates it from the environment
the structure that contains the information about how to make a cell’s proteins
What is the main function of chloroplasts in a plant cell?
They produce proteins.
They store water and food.
They perform photosynthesis.
They protect cells from the surrounding environment.
Jun Ming puts a slide of a eukaryotic cell under a microscope. The following diagram represents what Jun Ming observes. Which of the following choices best describes the structures labeled A?
These structures do not have membranes.
These structures transport substances throughout the cell.
These structures produce energy for the cell in the form of ATP.
These structures contain DNA and have a folded inner membrane.
Which of the following kingdoms belong to domain Eukarya?
Bacteria, Archaea, Protista
Eubacteria, Protista, Fungi
Animalia, Eubacteria, Archaebacteria
Protista, Fungi, Plantae
Into which kingdom do multicellular organisms having cells with cell walls, but no chloroplasts belong?
Protista
Plantae
Fungi
Animalia
Which kingdom contains organisms that acquire nutrients through ingestion?
Protista
Fungi
Animalia
Plantae
Which kingdom contains organisms that acquire nutrients through photosynthesis and contain cell walls and chloroplasts?
Eubacteria
Plantae
Fungi
Animalia
Which kingdom contains any eukaryote organism that is not an animal, plant, or fungi?
Protista
Eubacteria
Archaebacteria
Bacteria
Which statement best explains the relationship between structure and function in an organism?
Structure and function refer to the different tissue types within an organism.
Structure and function refer to the jobs of tissues, organs, and organ systems.
Structure and function refer to the locations of tissues, organs, and organ systems.
Structure and function refer to the locations and jobs of different tissues, organs, and organ systems working together.
A cactus is covered with a waxy layer to prevent water loss. Which type of tissue is this?
nervous
skeletal
protective
connective
Which is a type of tissue that both plants and animals have?
nerve
ground
protective
connective
The diagram shows parts of the human body. These parts work together to help you digest the food you eat. Which term describes the stomach?
cell
organ
tissue
organ system
Eugene is studying the levels of structural organization of an animal’s body. Which level would describe a dog’s eye?
organ
tissue
organism
organ system
In one type of cell division, a single cell forms two new cells. This process is called mitosis. What is a reason that human skin cells frequently undergo mitosis?
to get energy for the body
to prevent bruises on the body
to replace dead or damaged skin cells
to replace dead or damaged muscle cells
Cells must be able to perform certain functions in order to survive. Which of the following must all cells do to survive?
obtain energy
absorb wastes
utilize oxygen
continue growing
Organisms can respond to changes in their environment in order to maintain a balance, called homeostasis. What does a tree do to maintain homeostasis during the winter months?
shivers
hibernates
absorbs sun
loses leaves
Molecules move in and out of a cell by diffusion. The picture shows a cell and molecules both inside and outside the cell. How will the molecules in this illustration move as a result of diffusion?
into the cell
out of the cell
into another cell
to the external environment
Homeostasis is necessary for a cell to survive. What is the definition of homeostasis?
the elimination of wastes
the division of cells to form new cells
the maintenance of a stable internal environment
the process by which energy from the sun is used to make food
Which of the following levels of classification contain the greatest number of organisms?
domain
kingdom
phylum
class
Which molecules make up proteins?
amino acids
nucleic acids
phospholipids
carbohydrates
The diagram below shows the two main parts of the human body’s central nervous system. According to the diagram, which term best describes the spinal cord?
cell
organ
tissue
organ system
The following picture shows a prokaryotic organism. What part of the organism is labeled A ?
DNA
cytoplasm
cell membrane
membrane-bound organelle
Which term describes the adaptation of cells, organs, or organ systems for a specific function?
structure
specialization
multicellular organism
level of cellular organization
In which of the following kingdoms would you place prokaryote cells that have no nuclei or membrane-bound organelles?
Animalia
Plantae
Eubacteria
Protista
This diagram shows a living cell. What evidence exists in the diagram to explain that it is a plant cell and not an animal cell?
the nucleus
the cell wall
the ribosomes
the mitochondrion
What is a difference between eukaryotic cells and prokaryotic cells?
Only prokaryotic cells have cytoplasm.
Only eukaryotic cells have a cell membrane.
Only prokaryotic cells have genetic material.
Only eukaryotic cells have membrane-bound organelles.
Eukaryotic cells and prokaryotic cells have some parts that are different. Which of the following would you find only in a eukaryotic cell?
a nucleus
a cell membrane
DNA in the cytoplasm
organelles without membranes
Some organisms consist of one cell. Other organisms consist of multiple cells. Which of the following is true of cells in a multicellular organism?
All cells have the same function.
Every cell has a different function.
Different types of cells have the same function.
Different types of cells have different functions.
What is mitosis?
the process by which plants make their own food
the process by which cells use oxygen to produce energy from food
the maintenance of a stable internal environment
the process in which a cell divides and forms two identical nuclei
