Q1.The activity involving iron nails placed in different conditions (tap water, boiled water, boiled water with oil film) is designed to study which type of change?

Q2.According to the provided text, what is defined as the smallest structural and functional unit of an organism?

Q3.Why do all living organisms respire, according to the provided information?

Q4.What is the process of breakdown of food in the cell with the release of energy called?

Q5.Where does cellular respiration take place in organisms?

Q6.When the breakdown of glucose occurs with the use of oxygen, what is this process called?

Q7.What is the process called when food is broken down without using oxygen?

Q8.Which of the following organisms is mentioned as an example of an anaerobe that can survive in the absence of air?

Q9.In the absence of oxygen, glucose breaks down into which substances in organisms like yeast?

Q10.When do cells require energy?