NEW
Font size
WorksheetsUnit 4 Review
Total questions: 34
Worksheet time: 57mins
Using a light microscope, a student identified the following characteristics of four organisms found in a sample of pond water.
Based on the observations of the student, which organisms most likely belong to the taxonomic group for bacteria?
Organisms 1 and 2
Organisms 3 and 4
Organisms 1 and 4
Organisms 2 and 3
Four different types of cells are shown.
Which characteristic is shared by all four cells?
A mechanism for transforming sunlight into energy
Self-locomotion
Membrane-bound organelles that transport substances
Genetic material composed of DNA
Which of these best completes this concept map?
an animal cell
a prokaryotic cell
a virus
a plant cell
Where is DNA found in a Eukaryotic cell?
in the nucleus
in the cell wall
in the vacuole
in the mitochondria
Which cell is a prokaryote
All cells have cell membranes. What is the function (job) of the cell membrane?
Allow certain things to enter and exit the cell.
Allows all things to enter the cell.
Does not allow anything to enter and exit.
It is made out of wood.
The illustrations below represent two different cells.
Which of the following statements best identifies these two cells?
Cell X is a prokaryotic cell and cell Y is a eukaryotic cell.
Cell X is an archae cell and cell Y is a eubacterial cell.
Cell X is a red blood cell and cell Y is a muscle cell.
Cell X is a plant cell and cell Y is an animal cell.
The picture shoes a 3-D model of a virus called a bacteriophage. Bacteriophages can infect bacteria such as E. Coli. In What way are the bacteriophage and E.Coli alike?
They contain antibodies.
They reproduce by mitosis.
They have identical genomes.
They lack membrane-bound organelles.
Models of the HIV virus and an animal cell are shown. What is the difference in the function of the glycoprotein structures of an HIV virus and the cilia of an animal cell?
The glycoprotein structures are used for attachment, and the cilia are used to move fluids surrounding the cell.
The glycoprotein structures are used to obtain nutrition, and the cilia are used to secrete proteins.
The glycoprotein structures are used to provide physical support for the viral envelope, and the cilia strengthen the cell membrane.
The glycoprotein structures are used for defense, and the cilia are used for locomotion.
The table below lists the types of white blood cells found in humans, indicates how abundant they are, and describes their functions.
The two most abundant types of white blood cells may both be involved in a response to which of these?
Injury
Heat
Allergens
Bacterial infection
A person infected with the human immunodeficiency virus (HIV) may not have any symptoms for a period of time. During this period the virus affects the body by doing which of the following?
The virus produces toxins that weaken immune cells and prevent them from reproducing.
The virus damages immune cells while using their machinery to produce copies of itself.
The virus uses nutrients meant for immune cells to fuel its own cellular respiration.
The virus changes the identity of the nucleotides of immune cells to prevent the immune system from functioning normally.
Severe acute respiratory syndrome (SARS) is an illness caused by a coronavirus. Symptoms including a high fever, headaches, and body aches typically occur two to seven days after infection by the virus. SARS is more serious in elderly patients. This information suggests that the reproductive cycle of the SARS virus is—
lysogenic, because the virus is a coronavirus
lytic, because the virus causes respiratory illness
lysogenic, because the virus primarily affects older people
lytic, because of the quick onset of symptoms after infection
A single prokaryotic cell can divide several times in an hour. Few eukaryotic cells can divide as quickly. Which of the following statements best explains this difference?
Eukaryotic cells are smaller than prokaryotic cells.
Eukaryotic cells have less DNA than prokaryotic cells.
Eukaryotic cells have more cell walls than prokaryotic cells.
Eukaryotic cells are more structurally complex than prokaryotic cells.
