Nutrition in Plants Chapter 1

All the living ______ require food.

The process of taking food by an organism as well as the utilisation of this food by the organism is called ______.

Plants can make their own ______.

All the ______ plants are autotrophs.

Autotrophs are those organisms which can make ______ themselves from simple substances.

The methods of obtaining ______ are called modes of nutrition.

Green plants can make their own food from simple substances like carbon dioxide and water present in their surroundings by the process of _______

Green plants have _______ mode of nutrition.

Autotrophs contain a green pigment called _______ which helps them make food by absorbing energy from sunlight.

Most of the plants are _______ and hence synthesise (make) their own food.

The green plants produce food not only for themselves, they also make food for non-_____ plants as well as for animals (including human beings).

Chlorophyll is present in every leaf of a plant in the form of hundreds of tiny structures called ______.

Our body (and that of other animals) cannot make food from carbon dioxide and water present around us by the process of _______ because our body does not have the green pigment called chlorophyll.

The sunlight supplies energy for the food making process called ______.

The sun’s energy is captured by plant leaves with the help of ______ and converted into chemical energy of food.

The presence of ______ in leaves can be tested by pouring dilute iodine solution over the decolourised leaf.

Leaves make ______ as food by photosynthesis.

The ultimate source of energy for all the living organisms is the ______.

Plants cannot absorb ______ gas for their needs.

The soil has certain ______ which convert nitrogen gas of air into nitrogen compounds.

______ are the water soluble nitrogen compounds which are absorbed by the plants from the soil along with water.

The plants also obtain nitrogen from the ______ fertilisers which the farmers add to the soil in the fields from time to time.

Vitamins are made by ______.

Starch is a food which is stored in various parts of a plant such as roots, stem, leaves and ______.

Certain plants convert the simple carbohydrate glucose made during photosynthesis into ______ and store them in their seeds.

The oils obtained from plant seeds are commonly known as ______ oils.

Plants combine some of the glucose carbohydrate made during photosynthesis with ______ minerals to make amino acids which are then made into proteins.

Nitrogen element is present in abundance in air in the form of ______ gas.

Proteins are ______ substances which contain nitrogen element.