Test: Bacteria
For
Description: Taks review
Subject: Science
Subtopic: Biology
Topic: Multiple Biology Topics
Grade: 8
Instructions: Answer all questions to get your test result.

Question 1 of 10
Some bacteria benefit mammals by helping with
 


respiration


growth


digestion


defense
Question 2 of 10
Many species of bacteria are in the mouth. Which explains the variety in the mouth?
 


large volumes of air cause bacteria to change form


salivary glands cause mutations in bacterial populations


the presence of nutrients makes the mouth a favorable habitat


calcium in the teeth provides a suitable pH environment
Question 3 of 10
Raw poultry has disease causing bacteria. Which will provide people protection?
 


eating a balanced diet daily


cooking foods properly


visiting a doctor regularly


rinsing dishes thoroughly
Question 4 of 10
Which organism lives in the human intestine and aids in the digestivea process?
 


the protozoan Entamoeba coli


the fungus Trichophyton rubrum


the algae Fucus vesiculosus


the bacterium Escherichia coli
Question 5 of 10
Milk has lactose, yogurt contains live bacteria. What does this information demonstrate?
 


some bacteria are beneficial to human health


bacteria can prevent insulin production


bacteria raise the acidity of processed foods.


some bacteria interfere with digestion
Question 6 of 10
Which factor helps spread disease causing bacteria?
 


access to new hosts


mutation by heat energy


low temperatures


availability of light
Question 7 of 10
Which of these conditions is caused by bacteria?
 


AIDS


colds


seasonal allergies


dental cavities
Question 8 of 10
Streptococcus infection causes pain and fever. Strep can be controlled by antitiotics wh
 


it is a fungus


it is a virus


it is a bacterium


it is a protozoan
Question 9 of 10
All the symptoms are associated with bacterial infection except
 


increased red blood cell count


swollen glands or tissues


skin rashes or lesions


elevated body temperature
Question 10 of 10
some antibiotics causes digestive side effects. the side effects are the result of
 


the stomach wall being torn


too much water being drwn into the digestive tract


bacteria being killed in the digestive tract


the antibiotics being converted into stomach acids