A patient goes to the doctor with a cold and sore throat and asks for antibiotics. The doctor refuses to prescribe antibiotics to the patient because the illness is caused by which of the following pathogens?
A. Fungus
B. Virus
C. Protist
D. Bacteria
The doctor refuses to prescribe antibiotics to the patient because the illness is caused by a virus. The common cold is a viral infection of the upper respiratory tract. Antibiotics are not effective against viral infections and are only used to treat bacterial infections.
The other options are not correct because they do not accurately describe the cause of the common cold and sore throat. Fungus, protist, and bacteria are not the pathogens responsible for causing the common cold.
Therefore, the Correct Answer is B.
More Questions on TEAS 7 Science
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Q #1: Which of the following structures is present in both prokaryotic and eukaryotic cells?
A. Endoplasmic reticulum
B. Cell membrane
C. Chloroplast
D. Golgi apparatus
Answer Explanation
The structure that is present in both prokaryotic and eukaryotic cells is the cell membrane ². The cell membrane is a thin layer that surrounds the cell and separates its internal environment from the external environment ². It is composed of a lipid bilayer and proteins and regulates the movement of substances into and out of the cell ².
The other options are not correct because they are not present in both prokaryotic and eukaryotic cells. The endoplasmic reticulum, chloroplast, and Golgi apparatus are organelles that are only found in eukaryotic cells ².
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Q #2: Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?
A. Lysozymes
B. Urea
C. Water
D. Sebum
Answer Explanation
Urea is a waste product that is formed when proteins are broken down in the body. It is excreted by the kidneys in urine, but small amounts can also be excreted by sweat glands in sweat.
The other options are not substances that are excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia. Lysozymes are enzymes that break down bacterial cell walls, water is a component of sweat but is not specifically related to protein breakdown, and sebum is an oily substance produced by sebaceous glands to lubricate the skin.
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Q #3: Use the table below to answer the question. Object Mass (g) Time of fall (sec) 1 5.0 2.0 2 5.0 1.0 3 30.0 0.5 4 35.0 1.5 Which of the following conclusions is supported by the data?
A. Objects A and B will fall at the same rate.
B. The greater the mass of an object, the faster it will fall.
C. The time of fall is independent of the mass of the object.
D. Air resistance could be greater for A than for B.
Answer Explanation
