1. Why do organisms need to take food?
2. Distinguish between a parasite and a saprotroph.
3. How would you test the presence of starch in leaves?
4. Give a brief description of the process of synthesis of food in green plants.
5. Show with the help of a sketch that the plants are the ultimate source
of food.
Answers
Explanation:
1. Organisms need to take food to get energy and perform life processes. A living organism undergoes many life processes like nutrition, respiration, digestion, transportation, excretion, blood circulation, and reproduction. To perform all these life processes, the organism needs energy and nutrients.
Answer:
Explanation:
1)- Food is the source of energy needed to carry out life procceses. Food also helps to keep the body of a living being healthy. It supplies nutrients required for the develpoment of the body
2)- Parasitic organisms derive their food and nutrition completly from another "living" organism called the host while saprotrops derive their nutrition from already "dead" organisms.
3)- Sry not sure of the ans
4)- Green plants make their own food by the process of photosynthesis (Photo means light and synthesis means to make). Green plants also known as autotrophs make their food by raw materials like carbon dioxide, sunlight and chllorophyll.During photosynthesis a chemical reaction takes places in the leaves of plants producing glucose and oxygen.
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