Students, you may need to practice a lot while preparing for CBSE board exams and other exams. However, how do you decide on the questions or topics to prepare for? Therefore, we have come up with sets of important CBSE questions across grades that are based on the latest syllabus and exam pattern. Download now!
Important questions based on NCERT syllabus for Chapter 11 - Transportation in Animals and Plants:
Question-1: Why is excretion necessary?
Solution: When the cells performs their functions, certain waste products are released. These aretoxic and
hence need to be removed from the body. The process of removal of waste produced inthe cells of living organism is called excretion. The parts involved in excretion form the excretory System.
Question-2: How many chambers are present in the heart and explain the process involved?
Solution: Heart has four chambers. The two upper chambers are called atria and the two lower chambers are called the ventricles. The partition between the chambers helps to avoid mixing up of blood rich in oxygen with the blood rich in carbon dioxide. The blood flows from the heart to the lungs and back to the heart from where it is pumped to rest of the body.
Question-3: How is food prepared by plants?
Solution: Plants take water and mineral nutrients from the soil through the roots and transport it to the leaves.The leaves prepare food for the plants using water and carbon dioxide during photosynthesis.Food is the source of energy and every cell of an organism gets energy by the breakdown of glucose. The cells use energy
to carry out vital activities of life. Therefore food must be made available to every cell of an organism