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Jaret Jackson1

Ch.7 #25-40

Bacteria that cause disease are called bacterial. pathogens
__________, or poisons, are made by some bacterial pathogens. toxins
Some pathogens form thick walled structures called _____________ when environmental conditions are unfavorable: thus, they can survive for very long time periods. endospores
______________ can prevent some bacterial infections. vaccines
Vaccines are made from damaged or ____________ bacterial cells dead
Once injected, vaccines enable __________ blood cells on the body to recognize a particular type of bacteria and attack it if it appears at a later time. white
Describe the process of pasteurization. pasteurization is the process where the food is heated to a temperature that can kill most of the bacteria without much effect on the taste of the food
Describe how saprophytes help other organisms in the environment. saprophytes break down dead organisms and neturn nutrients back to the environment for other organisms to use
A. What kind of bacteria annually save farmers millions of dollars in fertilizer costs? B. What kind of plants have these bacteria in their roots? A. nitrogen-fixing bacteria save farmers millions dollars B. peanuts and beans & pea plants have these bacteria in their roots
Created by: jaret36