Robert Hooke
The part of the cell that regulates what enters and leaves the cell is the
Cell Membrane
An organ is made up of
a. groups of tissue.
b. groups of cells
c. several different systems.
d. only one system.
a. groups of tissue.
Which of the following is the best way to prevent the spread of infectious diseases?
a) Sharing food and drinks
b) Washing your hands regularly
c) Avoiding all people forever
d) Taking antibiotics for every sickness
b) Washing your hands regularly
Which of the following organisms are prokaryotes?
a. plants
b. animals
c. bacteria
d. all of the above
c. bacteria
First scientist to observe living cells
Anton van Leeuwenhoek
Proteins are assembled at the
Ribosomes
Which term includes the other three?
a. nucleolus
b. organelle
c. nucleus
d. Chloroplast
organelle
What does an epidemiologist do to help stop the spread of diseases?
a) They study and track how diseases spread and find ways to prevent them.
b) They make medicines to cure all diseases.
c) They only work in hospitals treating sick patients.
d) They invent new diseases to study.
a) They study and track how diseases spread and find ways to prevent them.
Eukaryotes usually contain
a. a nucleus.
b. specialized organelles.
c. genetic material.
d. all of the above
d. all of the above
Scientist who proposed that all cells come from other cells.
Rudolf Virchow
The small membrane-bordered structures that contain substances necessary for the digestion of some cellular materials are
Lysosomes
Antibiotics are used to treat:
a) Viral infections
b) Bacterial infections
c) Genetic disorders
d) Parasitic diseases
b) Bacterial infections
What is the main cause of infectious diseases?
a) Eating too much sugar
b) Lack of sleep
c) Harmful microorganisms like bacteria and viruses
d) Exercising too much
c) Harmful microorganisms like bacteria and viruses
Looking at a cell under a microscope, you note that it is a prokaryote. How do you know?
a. The cell lacks cytoplasm.
b. The cell lacks a cell membrane.
c. The cell lacks a nucleus.
d. The cell lacks genetic material.
c. The cell lacks a nucleus.
Scientist who discovered heat can kill microbes (pasteurization).
Louis Pasteur
In plant cells, the single large central saclike structure that is filled with liquid is known as the
Central Vacuole
Why is it important to take antibiotics exactly as prescribed by a doctor?
To make sure all the bacteria are killed and prevent them from becoming resistant.
Which of the following is an example of a bacterial disease?
a) The common cold
b) The flu
c) Strep throat
d) Chickenpox
Strep throat
Which of the following organisms are eukaryotes?
a. plants
b. animals
c. bacteria
d. both plants and animals
d. both plants and animals
The two scientists who developed cell theory.
Schleiden & Schwann
In animal cells, the chemical energy stored in food is changed into compounds the cell can use by the
Mitochondria
What is antibiotic resistance?
The ability of bacteria to survive and multiply despite the presence of antibiotics
How do viruses reproduce?
By finding a host cell and using it to make more viruses
Cells that do not have a nucleus are said to be
a. selectively permeable
b. osmotic
c. eukaryotic
d. prokaryotic
d. Prokaryotic