Cell Theory
Bacteria, pine trees, and fish all have what in common?
A.) They all breathe in oxygen in order to live
B.) They are all able to make their own food
C.) They all have one or more internal organs
D.) They are all made up of one or more cells
What is.....D.) They are all made up of one or more cells
Prokaryotic and eukaryotic cells have many different characteristics. One difference between prokaryotic and eukaryotic cells is that all eukaryotic cells —
F.) have a nucleus.
G.) are members of the same kingdom.
H.) reproduce sexually in water.
J.) make their own food.
What is....F.) have a nucleus.
Which of the following is a list of the three known domains?
F.) Bacteria, Archaea, Eukarya
G.) Bacteria, Prokarya, Mammalia
H.) Eukarya, Animalia, Archaea
J.) Prokarya, Eukarya, Animalia
What is....F.) Bacteria, Archaea, Eukarya
A unicellular, prokaryotic organism that reproduces asexually belongs to which kingdom?
A.) Protista
B.) Fungi
C.) Bacteria
D.) Animalia
What is....C.) Bacteria
Scientists classify living organisms into categories based on their characteristics. What is the broadest classification category?
A.) species
B.) domain
C.) phylum
D.) kingdom
What is....B.) domain
Robert Hooke examined a slice of cork under a microscope and observed that it was made up of small, rectangular compartments that he referred to as being like rooms. Using this information, it can be assumed that the cork, from which Robert Hook took a slice, is most likely —
A.) from only an animal.
B.) from a man-made material.
C.) a type of mineral.
D.) a type of living organism.
What Is......D.) a type of living organism.
Cells that have a nucleus are called —
A.) eukaryotic cells and are usually larger and more complex than prokaryotic cells.
B.) bacteria cells and are usually larger and more complex than protist cells.
C.) animal cells and are usually larger and more complex than plant cells.
D.) protist cells and are usually larger and more complex than fungal cells.
What is.....A.) eukaryotic cells and are usually larger and more complex than prokaryotic cells.
There are several million different types of organisms on Earth. Which of the following is the best way to organize them?
F.) By the name of the person who discovered them
G.) By features or characteristics they share
H.) Chronologically by date of discovery
J.) Numerically by their age
What is...G.) By features or characteristics they share
What characteristics describe organisms classified in to the kingdom Fungi?
A.) Prokaryotic and autotrophic
B.) Prokaryotic and heterotrophic
C.) Eukaryotic and autotrophic
D.) Eukaryotic and heterotrophic
What is...D.) Eukaryotic and heterotrophic
The most basic form of classification for organisms is by placing them into one of three domains. Which parts of an organism are observed in order to determine its domain?
F.) Cells
G.) Molecules
H.) Organs
J.) Tissues
What is...F.) Cells
Streptococcus pneumoniae, a type of bacteria, is often found living in the lungs of humans and can sometimes grow uncontrollably to cause lung infections. Romalea guttata, a type of insect commonly known as a grasshopper, lives in grass and feeds on plant life. Though very different, these two organisms are similar because they are both —
F.) only harmful to humans.
G.) only seen by using a microscope.
H.) composed of one or more cells.
J.) considered complex multicellular organisms.
What is.....H.) composed of one or more cells.
When compared to prokaryotic cells, eukaryotic cells —
A.) are simple, smaller, and have DNA found in a loose structure floating through the cell.
B.) are complicated, larger, and have DNA captured in a membrane-bound structure.
C.) are round and hard, unlike rectangular and soft prokaryotic cells.
D.) are able to move from place to place, unlike stationary prokaryotic cells.
What is....B.) are complicated, larger, and have DNA captured in a membrane-bound structure.
Which of the following is NOT a reason why scientists classify organisms?
A.) So that scientists all over the world can talk about organisms with a common language
B.) So that scientists can organize all the different types of organisms to study them better
C.) So that scientists can more easily identify new organisms that are discovered
D.) So that scientists can tell the order in which the organisms were discovered
What is....D.) So that scientists can tell the order in which the organisms were discovered
Oomycetes, also known as water molds, compose a group of organisms that belong to the kingdom Protista. What is a characteristic of oomycetes that allow them to be placed in this kingdom?
F.) Oomycetes cannot sexually reproduce.
G.) Oomycetes are found in every habitat on Earth.
H.) Oomycetes have chloroplasts that are green in color.
J.) Oomycetes are either unicellular or multicellular without any specialized tissues.
What is...J.) Oomycetes are either unicellular or multicellular without any specialized tissues.
Green algae, ferns, and pine trees are classified in the plant kingdom. These organisms share certain characteristics. Which of the following is a characteristic used to classify these organisms as plants?
F.) They have an immune system.
G.) They can be found in many different regions on Earth.
H.) They engage in photosynthesis.
J.) They produce flowers.
What is....H.) They engage in photosynthesis.
Cell biologists use compound light microscopes to examine the general structure of cells. A cell biologist, using a compound light microscope, could view cells in samples of all of the following EXCEPT —
A.) crystals.
B.) onion skin.
C.) bacteria.
D.) fluid blood.
What is....A.) crystals.
If a chicken egg were used as a model of a cell, what type of cell would it best represent?
F.) A prokaryotic cell, with the yolk representing free DNA
G.) A eukaryotic cell, with the yolk representing the nucleus
H.) A prokaryotic cell, with the yolk representing chloroplast
J.) A eukaryotic cell, with the yolk representing the cell membrane
What is....G.) A eukaryotic cell, with the yolk representing the nucleus
How do scientists classify the millions of organisms on Earth?
A.) By placing them into a hierarchical system based on shared traits and characteristics
B.) By placing them into an alphabetical system based on the discovering scientist
C.) By placing them into a cyclical system based on population size and location
D.) By placing them into a chronological system based on date of discovery
What is....A.) By placing them into a hierarchical system based on shared traits and characteristics
Agaricus bisporus, also known as the portobello mushroom, belongs to the kingdom Fungi. One of the characteristics that defines Agaricus bisporus as a fungus is that it has —
A.) pigment in its skin.
B.) the ability to photosynthesize.
C.) the ability to ingest other organisms.
D.) nuclei in its cells.
What is...D.) nuclei in its cells.
Mr. Jones's class is asked to properly identify multicellular eukaryotes that are usually mobile and obtain food from other organisms. Which key terms below would best help a student properly classify these organisms?
F.) Eukaryote, obtains food, mobile
G.) Multicellular, eukaryote
H.) Multicellular, mobile, obtains food
J.) Eukaryote, mobile
What is....H.) Multicellular, mobile, obtains food
Scientists often use microscopes to study cells. Cells are an important area of biological research because —
F.) all diseases are caused by living cells.
G.) cells were only discovered in the past 20 years.
H.) cells are only found in certain living organisms that produce chemicals used in medicines, and scientists want to discover new medicines.
J.) all organisms are made of cells, and scientists want to understand how living organisms function at the basic level.
What is....J.) all organisms are made of cells, and scientists want to understand how living organisms function at the basic level.
In 1665, Robert Hooke published Micrographia, a book in which observations he made with a microscope caused him to coin the term "cell". He may have coined the term when he viewed a piece of dead cork, a type of plant, and thought it resembled the cells of a honeycomb. If he had viewed a section of living cork, what might he have seen?
F.) Cells with nuclei, because cork plants have eukaryotic cells
G.) Cells with cell walls, because cork plants have prokaryotic cells
H.) Cells with chloroplast, because cork plants have prokaryotic cells
J.) Cells with moving tails, because cork plants have eukaryotic cells
What is.....F.) Cells with nuclei, because cork plants have eukaryotic cells
Which of the following is correct about classifying organisms in science?
F.) They are classified in a hierarchical system, with the largest group sharing only a few characteristics at the top, and the smallest group sharing the most characteristics at the bottom.
G.) They are classified in a numerical system, where the top tier classifies organisms with the largest populations, and the lowest tier classifies organisms with the smallest populations.
H.) They are classified in a chronological system, starting with the first organisms discovered by people and through to the most recently discovered organisms.
J.) They are classified in a geographical system, where the organisms are listed alphabetically by country, and the countries are ordered by number of organisms they possess.
What is...F.) They are classified in a hierarchical system, with the largest group sharing only a few characteristics at the top, and the smallest group sharing the most characteristics at the bottom.
What characteristic distinguishes members of the kingdom Plantae from members of the kingdom Fungi?
A.) All plants are organisms composed of many cells, whereas all fungi are organisms composed of only one cell.
B.) Plants are prokaryotic; fungi are eukaryotic.
C.) Plants are producers; fungi are decomposers.
D.) All plants are organisms that reproduce sexually, whereas all fungi are organisms that reproduce asexually.
What is...C.) Plants are producers; fungi are decomposers.
An organism is unicellular, reproduces asexually, and lives in a hot hydrothermal vent at the bottom of the ocean. This organism most likely belongs to the kingdom —
A.) Eubacteria.
B.) Animalia.
C.) Archaea.
D.) Protista.
What is...C.) Archaea.