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WorksheetsCell Structure & Function and Levels of Organization Review Test
Total questions: 38
Worksheet time: 3hrs 2mins
If you compare a cell to a city, which part of the city would have a purpose similar to the nucleus of the cell?
Restaurants
Power Plant
City Hall
Post Office
You able to grow new skin once it shed because billions of cells are replaced in the human body each day.
True
False
A teacher describes a biological structure. It is made of a number of different cell types that are arranged in layers. The outer layer serves as a protective barrier; the inner layer serves as a cushion and connects it to other structures.
Which type of structure is the teacher MOST LIKELY describing?
a tissue, because each of the different cell types carries out the same function
an organism, because each layer is an organ system that carries out different functions
an organ, because each of the cell types forms different tissues that have their own specific functions
an organ system, because each layer formed by the different cell types is a different organ that has a related function
Which of these BEST explains why plants need both mitochondria and chloroplasts?
Mitochondria use energy from the Sun to build sugars, and chloroplasts break down sugars into a form of energy cells can use.
Chloroplasts use energy from the Sun to build sugars, and mitochondria break down sugars into a form of energy cells can use.
Chloroplasts use energy from the Sun to power cell functions, and mitochondria use energy from the chloroplasts to build sugars.
Mitochondria use energy from the Sun to power cell functions, and chloroplasts use energy from the mitochondria to build sugars.
Look at the diagram of an animal cell to answer the question.
If the processes shown could no longer take place, what would most likely happen to the cell?
It would start dividing.
It would stop growing.
It would stop taking in carbon dioxide.
It would start changing wastes into nutrients.
A scientist observes cells of different plant parts under a microscope. The scientist finds that the cells contain different amounts of mitochondria and chloroplasts. The table shows the data collected by the scientist.
Which plant part is MOST LIKELY a green leaf that is actively involved in photosynthesis?
1
2
3
4
A student studies levels of organization in science class. The student creates a model of one level of organization by using plastic building blocks of the same size, shape, and color.
Which level of organization does the model MOST LIKELY represent?
cells in a tissue
tissues in an organ
organs in a system
systems in an organism
Some students are studying plant cells. One student claims that a cell could not make energy without mitochondria. Is the student correct and why?
The student is correct because mitochondria convert energy into glucose.
The student is correct because mitochondria convert nutrients into energy.
The student is incorrect because chloroplasts, not mitochondria, convert energy into glucose.
The student is incorrect because chloroplasts, not mitochondria, convert nutrients into energy.
Which of these describes a function of a cell's cytoplasm?
It produces energy for the cell.
It converts light energy into chemical energy for the cell.
It controls the activities that occur within the cell.
It allows materials to move within the cell.
Which level of cellular organization is represented by nerve tissue and muscle tissue working together?
cell
gene
organ
organelle
Which of these shows the levels of organization found in the human body from simple to complex?
muscle cell → muscle tissue → muscle → muscular system
muscle tissue → muscle cell → muscle → muscular system
muscle → muscle tissue → muscular system → muscle cell
muscular system → muscle → muscle tissue → muscle cell
A student uses a microscope to observe leaf cells. She adjusts the microscope eyepiece up and down to observe the organelles clearly and notices that some of the organelles in the leaf cell appear to float within the cell.
What cell structure is the student observing?
chloroplast
nucleus
cytoplasm
mitochondrion
Which of these describes a function of the nucleus of a cell?
It uses nutrients to make energy for the cell.
It allows materials to enter and leave the cell.
It makes copies of chromosomes so the cell can divide.
It traps energy from sunlight to produce food for the cell.
Which statement describes what will most likely happen if a plant cell stops receiving nutrients?
It will begin to grow more quickly.
It will begin to divide more quickly.
It will no longer be able to grow or divide.
It will grow but will no longer be able to divide.
The diagram shows a plant cell.
Which of these best explains the function of a chloroplast?
It uses sunlight to make sugars for the cell.
It breaks down food into energy for the cell.
It directs the functions of other structures in the cell.
It controls the movement of materials into and out of the cell.
Which of these describes what plant cells do with the energy they receive from sunlight?
Sunlight is used to make nutrients.
Sunlight is used to remove wastes.
Sunlight is used to transfer genetic information.
Sunlight is used to control the movement of materials.
A student compares different levels of organization found in four organisms. She wants to organize the information from the most complex level of organization to the most simple level of organization.
Which of these should the student list as the least complex level of organization?
the kidneys of a fish
the mitochondria of a skin cell
tissues that carry water in a plant
cells that carry oxygen in an animal
Use the diagram to answer the question.
Which two structures help produce energy for a plant cell?
nucleus and cytoplasm
mitochondrion and cytoplasm
cell membrane and chloroplast
mitochondrion and chloroplast
Which structure in a cell directs other organelles?
chloroplast
cytoplasm
mitochondrion
nucleus
Which of these best describes levels of organization in an animal?
Organs are organized into cells.
Tissues are organized into organelles.
Cells are organized into tissues.
Organelles are organized into organs.
Which of these household objects has a function most similar to the function of a cell membrane in a cell?
solar light
furnace
bookshelf
front door
Which statement correctly describes some functions of a cell?
The mitochondrion and the nucleus help to make food for the cell.
The cytoplasm and the chloroplasts control the activities of the cell.
The cell membrane and the chloroplasts support the structures of the cell.
The cytoplasm and the cell membrane allow materials to move through the cell.
Body cells receive nutrients from the blood in the form of glucose. Which statement best describes what happens when cells receive glucose?
They use the glucose to make food.
They use the glucose to make energy.
They return the glucose to the bloodstream.
They stop growing when glucose is present.
Which cell structure controls the movement of materials into and out of the cell?
nucleus
chloroplast
mitochondrion
cell membrane
Which of these correctly compares two levels of organization in organisms?
Organisms are composed of organs, and organs are composed of organ systems.
Organ systems are composed of organisms, and organisms are composed of tissues.
Organs are composed of tissues, and tissues are composed of groups of similar cells.
Organ systems are composed of groups of similar cells, and tissues are composed of organ systems.
A group of students is studying the importance of different cell structures. One student tells the group that all cells can function without mitochondria.
Which of these best explains why the student is incorrect?
Mitochondria are necessary for most cells to produce energy.
Mitochondria are necessary for most cells to perform photosynthesis.
Mitochondria are necessary to keep cell contents in a gel-like substance.
Mitochondria are necessary to keep cell contents isolated from the environment.
A student made a flow chart that shows some parts of the human digestive system. Use the flow chart to answer the question.
Which of these correctly describes levels of organization presented in the student's flow chart?
The small intestine combines with the stomach to form a tissue.
The stomach combines with other tissues to form the small intestine.
Specialized tissues combine to form the stomach, which is an organ.
Specialized organs combine to form the small intestine, which is a tissue.
Which statement about cells is correct?
Cells make up tissues, and tissues form organs.
Cells make up systems, and systems form organs.
Cells make up organisms, and organisms form tissues.
Cells make up organisms, and organisms form systems.
Which change to an animal cell is most likely to be caused by the cell membrane not functioning properly?
The cytoplasm becomes filled with waste materials.
The cell becomes unable to use sunlight to produce food.
The activities of other parts of the cell can no longer be controlled.
The cell can no longer produce enough energy to perform its normal functions.
Which of these would a researcher most likely test in order to see if a specific substance has crossed the cell membrane?
the chloroplasts, because they help the cell membrane produce food for the cell
the mitochondria, because they help the cell membrane produce energy for the cell
the nucleus, because it is in direct contact with the cell membrane and controls functions of the cell
the cytoplasm, because it is in direct contact with the cell membrane and helps move materials throughout the cell
A cell is exposed to a chemical that destroys chloroplasts. Which statement best explains what would happen to the cell?
The cell would no longer be able to produce energy.
The cell would no longer be able to create sugar from sunlight.
The cell would no longer be able to manage what materials enter and leave it.
The cell would no longer be able to provide support and protection for other structures inside it.
When the skin is injured, new cells repair and replace the damaged tissue. How do these new cells use nutrients during this process?
Nutrients reinforce the cells' structures so that the injured area cannot be harmed again.
Nutrients help break down the cells so pieces of them can be placed over the injured area.
Nutrients provide energy that the cells use to reproduce so that they can fix the injured area.
Nutrients direct the cells from other parts of the body to the injured area to help prevent blood loss.
While doing research, a student determined that the mouth, esophagus, stomach, and small intestine can all be considered part of a single organ system.
If an illness were to prevent these organs from working together correctly, how would the cells of the body be affected?
The cells would not be able to get rid of liquid wastes.
The cells would not be able to fight infections efficiently.
The cells would not be able to exchange oxygen and carbon dioxide.
The cells would not be able to receive as many nutrients as they usually would.
When food is eaten, it must be broken down by the body. Which of these BEST explains how nutrients obtained from this process are used by the body's cells?
Cells use nutrients for growth and repair.
Cells use nutrients to avoid producing energy.
Nutrients allow cells to store and reuse wastes over time.
Nutrients allow cells to have a constantly changing environment.
Students in a science class planted two tomato seedlings of equal height in identical pots using the same type and amount of soil. Both plants received the same amount of sunlight and water each day. Plant X received 10 milliliters of fertilizer per week; Plant Y received no fertilizer. After four weeks, the students observed that Plant X was much taller than Plant Y.
Which statement BEST explains why Plant X grew taller than Plant Y?
The cells in Plant X absorbed more water than the cells in Plant Y.
Plant X started out with larger cells to grow and divide than Plant Y.
The cells in Plant X received more nutrients than the cells in Plant Y.
Plant X started out with a greater number of cells to grow and divide than Plant Y.
A class performed an experiment in which a group of plant cells and a group of animal cells were placed in separate dishes in a dark room for three days. Other environmental conditions were set to support cell function, and both sets of cells were given the nutrients needed for cell growth. After three days, the students observed that the animal cells multiplied but the plant cells did not.
Which statement MOST LIKELY explains the observations made?
The chloroplasts in the plant cells did not receive light to carry out photosynthesis.
The chloroplasts in the animal cells did not receive light to carry out photosynthesis.
The mitochondria in the plant cells did not receive light to produce energy.
The mitochondria in the animal cells did not receive light to produce energy.
Students learned that a body has many levels of organization. Their teacher dissected a pig heart to demonstrate one of these levels. Which statement best explains how a section of the pig heart should be classified?
The section should be classified as a cell because a cell is the basic unit of a structure.
The section should be classified as a system because the organ is part of the circulatory system.
The section should be classified as an organ because organs perform a specific job in an organism.
The section should be classified as a tissue because the section came from an organ.
Which of the following is NOT one of the main components of the cell theory?
cells are the basic unit of structure and function in all living things.
all living things are made of cells.
cells can only come from other cells.
cells must contain DNA with similar structures and functions.
