Science, asked by khushboo15, 1 year ago

give the answer please
give definations of

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Answered by snehaj12161
1
Cell is the structural and functional unit of life..... Every organism begins its life with a single cell

CELL MEMBRANE is a thin, delicate & semi permeable membrane. Which allows only few substances to enter or leave the cell.

NUCLEUS is a large somewhat spherical shape body lying nearly in the center of cytoplasm

CYTOPLASM is the part of cell inside the membrane and outside the nucleus. It is a semiliquid substance where many metabolic reactions take place.

STOMATA are microscopic pores found on the epidermis of plants. Though most stomata are found on leaves, they can be found on all aboveground parts of a plant. These pores allow the exchange of gases between the outside environment and the air canals within a plant. 

NUTRITION is the sum total of the processes involved in the taking in and the utilization of food substances by which growth, repair and maintenance of the body are accomplished. It involves ingestion, digestion, absorption and assimilation. Nutrients are stored by the body in various forms and drawn upon when the food intake is not sufficient.

A HETROTROPHS is an organism that cannot manufacture its own food by carbon fixation and therefore derives its intake of nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are secondary and tertiary consumers.

AUTOTROPHS are self-feeders, and they get their energy from non-living sources such as the sun and carbon dioxide. Autotrophs are called producers because they provide energy and food sources for all heterotrophic organisms.


NUTRIENTS are molecules in food that all organisms need to make energy, grow, develop, and reproduce. Nutrients are digested and then broken down into basic parts to be used by the organism. 

CHLOROPHYLL is known as a pigment, or molecule that reflects some wavelengths of light, while absorbing others. Pigments produce a variety of colors in the plant and animal world. Chlorophyll is a green pigment, and is responsible for the green color of plants and algae.

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