WorksheetsCell Theory Quiz
Total questions: 18
Worksheet time: 54mins
All organisms must breathe. That is, they must take in one type of gas that they need for life functions, and then they must get rid of waste gases. Most animals take in oxygen and expel carbon dioxide, while most plants take in carbon dioxide and expel oxygen. What part of all organisms is involved in the exchanging of gases?
the cells
No one knows what part of organisms exchange gases
the tissues
the organs in animals; the stems in plants
The following timeline points out the major discoveries that contributed to modern cell theory. Which of the following describes the formulation of cell theory?
The work of multiple scientists contributed to cell theory in incremental steps that built upon earlier knowledge.
The development of cell theory depended only on the work Schleiden and Schwann.
A single scientist developed cell theory in incremental steps over a relatively short period of time.
Multiple scientists worked together at the same time and location to develop cell theory.
All organisms are made up of cells. These cells are responsible for performing many functions in the body, such as making proteins and producing energy.
In order to perform these functions, the cells need
information from books.
nutrients from food.
only water.
electrical energy.
A scientist tries to create a new cell by putting together all of the structures that make up an animal cell. Even though he uses all of the structures found in a typical animal cell, a new cell is not produced. Why does this combination not form a new cell?
New cells can only come from pre-existing cells.
New cells cannot be produced through any means.
New cells must start out as plant cells.
New cells must start out as unicellular organisms.
What feature is similar among all organisms?
They are composed of one or more cells that function to sustain life.
They are composed of multiple tissue types.
They can transform sunlight into food for sustenance.
They can consume other organisms to create energy.
In 1862, a French chemist named Louis Pasteur performed the following experiment. Pasteur placed broth in a special type of flask that allowed air to enter and exit. Then, he heated the broth and flask, so they no longer contained any bacterial cells. Over the next few days, Pasteur observed that nothing grew in the flask. Which of the following conclusions is best supported by this experiment?
Bacteria are not living organisms.
Most bacteria cannot grow without air.
All cells must come from pre-existing cells.
Cells are spontaneously created from nonliving matter.
A scientist would like to demonstrate that cells are the basic structural and functional unit of living organisms. Which of the following experiments should she perform?
observe samples of plant tissue under a microscope at a high magnification
add several seeds to pots with soil and monitor the growth of the plants
observe whether organisms appear in a sealed container of broth after it is boiled
place individual cells in a Petri dish with food and monitor their ability to grow
The image below shows an onion root viewed under a microscope. What does this image best demonstrate?
Each cell can perform all functions necessary for life.
Cells of different organisms have a similar composition.
Living organisms are composed of one or more cells.
New cells only arise from pre-existing cells.
Cells help organisms carry out many processes, such as
reproduction.
growth.
maintenance.
all of these
All living organisms are composed of
at least 100 cells.
at least three cells.
one or more cells.
only one cell.
Below is a list of functions performed by organisms. Examine the list, then answer the question that follows. • gas exchange intake of nutrients disposal of wastes • stimulus response • reproduction How do these functions compare between single-celled and multi-celled organisms?
Neither single-celled organisms nor multi-celled organisms can perform all of these necessary functions.
Single-celled organisms can perform only some of these functions, while multi-celled organisms can perform all of these functions.
Single-celled organisms must perform all of these functions with one cell, while multi-celled organisms can have specialized cells for different functions.
Single-celled organisms can perform only some of these functions, while multi-celled organisms can perform all of these functions.
There are many criteria that are used to define living things. Living things reproduce, grow, and develop. They respond to stimuli, use materials and energy, and evolve and adapt over time to their environment. What is another criteria used to define living things?
All living things are intelligent.
All living things are made of cells.
All living things are complex.
All living things are able to move.
Which of the following is true about living organisms and cells?
Some living organisms are made of cells, but most organisms are not.
Most living organisms are made of cells, but some organisms are not.
All living organisms are made of multiple cells.
All living organisms are made of at least one cell.
Throughout the 1800s, scientists viewing organisms under microscopes made a series of observations. • A scientist viewing plant structures observed that plants are made up of very small repeating units. Each of these was surrounded by a wall and contained a nucleus. • A scientist examining tissue from tadpoles observed that animal structures are made up of repeating units. Each of these contained a nucleus. • A scientist viewing samples of pond water observed small, freely moving organisms. Each of these contained a single nucleus. These observations led the scientists to develop a theory about living organisms. Which of the following conclusions about living things is best supported by these observations?
All living things are made up of cells.
Cells can only come from pre-existing cells.
Living things are made up of several different types of cells.
Cells from different living organisms look identical to one another.
The picture below shows one cell dividing into two cells. Which of the following statements is best supported by the picture shown above?
All cells come from pre-existing cells.
Cell division only occurs in animals.
Both living and non-living organisms contain cells.
All organisms are multi-cellular.
Where do animal cells get the molecules, such as proteins, that they use for growth, repair and other life processes?
The lungs make them from gases the animal takes in when it breathes.
The small intestine makes them from food that the animal ingests.
The animal takes in materials from the environment, and the cells use the materials without changes.
The cells make them from materials the animal takes in from the environment.
Which of the following is true of cells?
Each organism has only one type of cell.
Each organism has exactly three cells.
Cells carry out the functions needed for life.
Cells are not necessary for human life.
Spontaneous generation is the idea that new living organisms can form from nonliving matter. Cell theory, however, states that cells can only grow from other cells. Which of the following experimental results supports the idea that new cells can only form from other cells?
A plant cell had its cell wall broken, and the cell was found to no longer be able to function.
A piece of uncovered meat that was left outside contained maggots by the end of one day.
A container of soup that was heated and sealed did not grow mold even after several months.
A mold sample examined under a microscope showed a regular structure made of many individual cells.
