Nutrition in Plants | one liner questions

 Ch-01 Nutrition in Plants. | One liner questions.

-Carbohydrates, proteins, fats, vitamins and minerals are components of food. These components are called nutrients.

-Autotrophic = Auto (self) + trophos (nourishment)

-Heterotrophs= heteros(other).

-Leaves are the food factories of plants.

-Carbon dioxide from air is taken in through the tiny pores present on the surface of leaves. These pores are surrounded by guard cells. Such pores are called stomata.

-Plants have pipe-like vessels to transport water and nutrients from the soil. The vessels are made of special cells, forming the vascular tissue.

-The leaves have a green pigment called chlorophyll. It helps leaves to capture the energy of the sunlight.

-Co2 + water—----------------------------------> carbohydrate + Oxygen.

-Cell membrane = a cell is enclosed by a thin outer boundary, called the cell membrane.

-A spherical structure in a cell is called a nucleus.

-A nucleus is surrounded by a jelly-like substance called cytoplasm.

-Starch is also a carbohydrate.

-A slimy, green patch in ponds or stagnant water bodies, these are generally formed by the growth of organisms called algae.

-The plants synthesise carbohydrates through the process of photosynthesis. The carbohydrates are made of carbon, hydrogen and oxygen. These are used to synthesise other components of food such as proteins and fats.

-Soil has certain bacteria that convert gaseous nitrogen into a usable form and release it into the soil.

-Cuscutta(Amarbell) does not have chlorophyll. They use the heterotrophic mode of nutrition.

-The plant on which it climbs is called the host. Since it deprives the host of valuable nutrients, Cuscuta is called the parasite.

-The pitcher plant, an insect-eating plant, is called an insectivorous plant.

-Fungi absorb the nutrients from the bread. This mode of nutrition in which organisms take in nutrients from dead and decaying matter is called saprotrophic nutrition.

-The fungal spores are generally present in the air. When they land on wet and warm things they germinate and grow.

-Some organisms live together and share both shelter and nutrients , this relationship is called symbiosis.

-Lichens, a chlorophyll-containing partner, which is an alga, and a fungus live together. The fungus provides shelter, water and minerals to the alga and, in return, the alga prepares and provides food to the fungus.

-Fertilizers (chemicals) and manures (organic) contain nutrients such as nitrogen, potassium, phosphorus,etc.

-Plants need nitrogen in a soluble form.