NEET BIOLOGY

Detailed explanation-1: -In higher animals, including humans, glucose is obtained from food and is readily absorbed into the bloodstream from the intestines. The blood then carries glucose throughout the body, where it is absorbed into cells and used for energy during cellular respiration.

Detailed explanation-2: -Like plants, humans and other animals depend on glucose as an energy source, but they are unable to produce it on their own and must rely ultimately on the glucose produced by plants. Moreover, the oxygen humans and other animals breathe is the oxygen released during photosynthesis.

Detailed explanation-3: -Animals cannot use radiant energy from the Sun to make glucose. They must obtain energy from the environment in the form of food, which contains chemical energy. Animals have to eat in order to survive.

Detailed explanation-4: -Answer and Explanation: Humans and animals get their glucose from plants. They consume food in the form of complex carbohydrates or starch. The enzymes produced in the body such as salivary amylase, maltase, and sucrase convert carbohydrates into absorbable glucose molecules.

Detailed explanation-5: -It mainly comes from foods rich in carbohydrates, like bread, potatoes, and fruit. As you eat, food travels down your esophagus to your stomach. There, acids and enzymes break it down into tiny pieces. During that process, glucose is released.