Question

1) Give the steps involved in
Photosynthesis
2) Write differences between
Nutrition in plants and animals

Answer 1

Answer:

1 - It is convenient to divide the photosynthetic process in plants into four stages, each occurring in a defined area of the chloroplast: (1) absorption of light, (2) electron transport leading to the reduction of NADP+ to NADPH, (3) generation of ATP, and (4) conversion of CO2 into carbohydrates (carbon fixation).

2- Food is the essential thing for both plant and animals to survive .plants are Autotrophic, they prepare their own food providing some of it to other organisms. Whereas Animals are Heterotrophic, they cannot build their food inside themselves and intake from other plants or animals. One prepares its own food and one depends on other for food. Plants require light, water and about 20 elements known as essential elements to meet all their biochemical needs. Some plants cannot produce their own food and must obtain their nutrition from outside sources these are parasitic or saprophytic. Some plants are mutualistic symbionts, epiphytes, or insectivorous. Most animals take their nutrients by the ingesting of other organisms. The molecules necessary function for animals are amino acids, lipid molecules, nucleotides, and simple sugars and the food consumed consists of protein, fat, and complex carbohydrates. Animals convert these macromolecules into the simple micro molecules essential for keeping cellular functions. The conversion of the food consumed to the nutrients involves digestion and absorption. During digestion, food particles are broken down into smaller components, and later, they are absorbed by the body.

Explanation:

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Answer 2

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Q1)

What is Photosynthesis?

It's the Process by which autotrophs take in substances from the outside and convert them into stored form of energy.

Steps involved in Photosynthesis

1) Absorption of light energy by chlorophyll

2) Conversion of this Light energy to chemical energy and also splitting of water molecules into hydrogen and oxygen.

3) Reduction of Carbon Dioxide to carbohydrates.

Q2)

Following are the differences between Nutrition in Plants and Animals

Plants-

• They have Autotrophic form of nutrition.

• The internal reserve of plants is Starch. (The carbohydrates which aren't used immediately are stored in form of Starch)

• Plants use Photosynthesis process and the end products formed are Glucose and Oxygen.

Animals -

• They have Heterotrophic form of nutrition where they are either dependent on plants or other animals for food.

• The energy that we get from food is stored in form of Glycogen.

• Since there's no such process like photosynthesis for Animals, the food that they eat is broken down into simpler substances by various enzymes acting on them and the end products are proteins are broken down into Amino acids, carbohydrates are broken down into glucose and fats are broken down into fatty acids and glycerol.