Lactic acid (C₃H₆O₃) is formed when we respire anaerobically. Condition is that, when the heart and lungs cannot work fast enough to provide enough oxygen around the body to breakdown the glucose.

Egestion involves elimination of the remaining undigested food Material by rupturing of cell wall at any time.

Class 10th Science Session 2022-23 Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions