6th Grade · Science · Quiz · shared by Luke Morgan
This 6th Grade Science quiz helps students understand helpful and harmful bacteria, covering their characteristics and effects.
Multiple Choice
1. _____ According to the passage, what is the Streptococcus group?
A. A type of medicine used to treat sore throats
B. A genus of bacteria that can have very different effects
C. A group of scientists who study microscopic world
D. A specific type of sugar found in creamy yogurt
2. _____ What substance does Streptococcus thermophilus create when it interacts with milk?
A. Pathogens
B. Lactic acid
C. Streptococcus pyogenes
D. Immune cells
3. _____ Why is Streptococcus thermophilus considered helpful for food production?
A. It can survive heat during the production process.
B. It creates a fever to protect the yogurt.
C. It multiplies quickly to cause redness.
D. It removes unwanted guests from the system.
4. _____ What does the term pathogen mean as used in the text?
A. An organism that is used to make snacks
B. A microscopic chain of round cells
C. An organism that causes disease
D. A substance that thickens milk
5. _____ What physical shape do both Streptococcus thermophilus and Streptococcus pyogenes share?
A. Single square cells
B. Long flat ribbons
C. Chains of round cells
D. Large triangular clusters
6. _____ How does Streptococcus pyogenes obtain the energy it needs to grow?
A. By turning sugar into lactic acid
B. By surviving in warm environments
C. By attacking healthy cells
D. By balancing the environment in the stomach
7. _____ Based on the passage, what is fermentation?
A. The process of the immune system fighting invaders
B. The chemical breakdown of substances by bacteria or yeasts
C. The way pathogens attach to the lining of the throat
D. The use of medicine to remove bacteria from the body
8. _____ What is one positive effect of eating Streptococcus thermophilus?
A. It helps the digestive system work by balancing the environment in the intestines.