Science TAKS: Bell Ringers Prepared for the Scurry-Rosser High School Science Department Objective 3, B.04D Identify and describe the role of bacteria in maintaining health such as in digestion and in causing diseases such as in streptococcus infections and diphtheria.

#1) Some bacteria benefit mammals by helping with A. growth B. defense C. digestion D. respiration State Average: 53% correct

#2) Which of the following factors helps spread disease-causing bacteria? F. Low temperatures G. Access to new hosts H. Mutation by heat energy J. Availability of light State Average: 73% correct

#3) Lactose is a naturally occurring sugar found in milk. Some dairy products, such as yogurt may contain live bacteria. These products are useful to people who lack the ability to digest lactose. What does this information demonstrate? A. Bacteria raise the acidity of processed foods. B. Some bacteria interfere with digestion. C. Bacteria can prevent insulin production. D. Some bacteria are beneficial to human health State Average: Tested Oct-2005

#4) Which of these conditions is caused by bacteria? F. AIDS G. Seasonal Allergies H. Dental cavities J. Colds State Average: Tested Dec-2005

#5) A study shows that 40% to 100% of raw poultry is contaminated by disease- causing bacteria. Which of the following activities provides people the best protection from these bacteria? A. Rinsing dishes thoroughly B. Eating a balanced diet daily C. Visiting a doctor regularly D. Cooking foods properly State Average: Tested July – 2007

TAKS Question Set Answers #1 C #2 G #3 D #4 H #5 D