IIT Foundation And NEET Exam Preparation
1 The circulatory system is responsible for transporting substances in animals and plants. Answer: True Explanation: 2 Blood is composed of a fluid called plasma and red blood cells only. Answer: False Explanation: Blood is composed of plasma in which different types of cells, including red blood cells and white blood cells, are suspended. … Read more
1 What is the function of the circulatory system? A) Regulating body temperature B) Transporting substances in animals and plants C) Fighting against germs D) Removing waste from the body Answer: B Explanation: Circulatory system functions to transport substances in animals and plants. 2 What is the fluid that flows in blood vessels? A) … Read more
1 Breathing is a part of ____________. Answer: respiration Explanation: Breathing is a part of respiration. 2 The process of breakdown of food in the cell with the release of energy is called ____________. Answer: cellular respiration Explanation: The breakdown of food in the cell with the release of energy is called cellular respiration. … Read more
1 Breathing is a part of excretion. Answer: False Explanation: Breathing is a part of respiration, not excretion. 2 Oxygen in the air helps in the breakdown of food in the cells. Answer: True Explanation: This is mentioned in the passage as part of the process of cellular respiration. 3 Anaerobic respiration is … Read more
1 Why do living organisms respire? a) To release carbon dioxide b) To get energy from food c) To transport oxygen d) To break down glucose Answer: b) To get energy from food Explanation: Living organisms respire to obtain energy from the breakdown of food, which releases stored energy in the form of ATP. … Read more
1 Dissolving sugar in water is an example of a __________ change. Answer: physical Explanation: Dissolving sugar in water is a physical change where the sugar particles disperse in water without forming a new substance. 2 In a physical change, the properties of a substance may change, but its __________ remains the same. Answer: … Read more
1 Souring of milk is a physical change. Answer: False Explanation: Souring of milk is a chemical change because it involves the formation of new substances (such as lactic acid) due to the action of bacteria on the milk. 2 Physical changes are generally reversible. Answer: True Explanation: Physical changes often involve alterations in … Read more
1 What kind of change is observed when a piece of paper is cut into smaller square pieces? a) Chemical change b) Physical change c) Biological change d) None of the above Answer: b) Physical change Explanation: Cutting a piece of paper into smaller square pieces does not involve the formation of a new substance. … Read more
1 Acids taste sour_. Explanation: Acids have a sour taste. 2 Bases are bitter in taste and feel soapy. Explanation: Bases have a bitter taste and feel soapy to the touch. 3 Litmus turns red when added to an acidic solution. Explanation: Litmus paper turns red in the presence of an acidic solution. … Read more
1 Acids taste sweet. Answer: False Explanation: Acids do not taste sweet. They typically have a sour taste. 2 Baking soda is an example of a base. Answer: True Explanation: Baking soda is a base. It is bitter in taste and feels soapy when touched. 3 Litmus turns red when added to a … Read more