Life Process PPT Presentation Free Download

Life processes are essential biological functions that keep living organisms alive. These processes include nutrition, respiration, transportation, excretion, reproduction, and growth. Every living being, from tiny bacteria to large animals, relies on these functions to survive and maintain balance in their bodies.

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Life Process PPT Presentation Free Download

Nutrition

Nutrition is the process by which organisms obtain food and energy for survival. It can be autotrophic, where plants produce their own food through photosynthesis, or heterotrophic, where animals and humans consume other organisms for energy. Proper nutrition is necessary for growth, repair, and maintaining body functions.

Respiration

Respiration is the process of breaking down food molecules to release energy. This can be aerobic, which requires oxygen, or anaerobic, which occurs without oxygen. The energy released during respiration is used for various biological activities such as movement, reproduction, and cellular functions.

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Transportation

Transportation refers to the movement of nutrients, gases, and waste products within an organism. In plants, the vascular system, consisting of xylem and phloem, helps transport water and food. In animals, the circulatory system, including the heart, blood, and blood vessels, carries oxygen, nutrients, and waste throughout the body.

Excretion

Excretion is the removal of metabolic waste from the body. In humans and animals, the kidneys, liver, lungs, and skin play a vital role in eliminating waste products like carbon dioxide, urea, and sweat. In plants, excess water and oxygen are expelled through stomata and lenticels.

Reproduction

Reproduction is the biological process through which organisms produce offspring. It can be sexual, involving two parents, or asexual, involving only one parent. This process ensures the continuation of species.

Growth

Growth is the increase in size and number of cells in an organism. It occurs through cell division and differentiation, helping organisms develop from infancy to maturity.