Q. State whether the given statements are true or false I. Bacteria shows both autotrophic and heterotrophic nutrition II. Some of the bacteria are autotrophic. They may be photosynthetic autotrophic or chemosynthetic autotrophic III. Heterotrophic nutrition involves the obtaining of readymade organic nutrients from outside sources
A) I and II are true
B) I is true, II and III is false
C) I, II and III are true
D) I, II and III
Explanation
Bacteria shows both autotrophic and heterotrophic nutrition. Autotrophic nutrition involves manufacturing of organic materials from inorganic raw materials with the help of energy obtained from outside. It is of two types, chemosynthesis and photosynthesis. The bacteria performing these modes of nutrition are respectively called chemoautotrophs and photoautotrophs. The vast majority of bacteria are heterotrophs, i.e., they do not synthesise their own food but depends on other organism or on dead organic matter for food
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.