NEET BIOLOGY

Detailed explanation-1: -The waste products involve toxic materials, extra substance from the organisms etc. Plants needed to excrete carbon dioxide and oxygen. Carbon dioxide is the waste product involved in the aerobic respiration of the plants whereas oxygen is the waste product during the process called photosynthesis.

Detailed explanation-2: -Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.

Detailed explanation-3: -Plants need to excrete excess carbon dioxides and oxygen. Carbon dioxide is a waste product of aerobic respiration in plant cells. Oxygen is a waste product of photosynthesis.

Detailed explanation-4: -If there is insufficient oxygen, carbon monoxide CO, is formed instead. Carbon dioxide is also the gas we exhale, since it is the product of respiration, whereby oxygen atoms are used to ‘burn’ (oxidise) the foodstuffs to release the energy necessary to sustain life.

Detailed explanation-5: -Some of the oxygen produced in the process of photosynthesis is used in respiration by the leaf cells but the major portion of it is not required and it diffuses out into the atmosphere through the stomata. Therefore, it may be called a waste product of photosynthesis.