The diagram shows an experiment demonstrating a biological phenomenon. Which phenomenon has been demonstrated in the diagram above ?

The process of diffusion has been demonstrated in the diagram. The movement of molecules from the region of higher concentration to the region of lower concentration is called as diffusion. It is an important process for living things; it is how substances move in and out of cells. By diffusion, carbon dioxide reach the other cells in the leaf, and also let the oxygen produced in photosynthesis leave the leaf easily.

The diagram shows an experiment demonstrating a biological phenomenon. Name a physiological activity of plants which occurs due to this phenomenon.

Transpiration can be characterised as a process by which water moves out in the form of vapour through the leaves. This physiological process of plants occurs due to the diffusion of water out of the stomata into the atmosphere. Water is absorbed by roots from the soil and transported as a liquid to the leaves. In the leaves, small pores allow water to escape as a vapour.

The diagram shows an experiment demonstrating a biological phenomenon. Quote one example from your daily life experiences based on this principle.

A biological phenomenon in the experiment demonstrated is diffusion. Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. One example from daily life based on this principle is: If we place a perfume bottle open in a corner of a room, after a certain period of time the gas molecules from the bottle start diffusing and spread in all the direction of the room and as a result of this a person can smell the fragrance in all the area of the room irrespective of the location of the bottle.

The diagram shows an experiment demonstrating a biological phenomenon. What type of solution will be formed at the end of the experiment?

A homogeneous, coloured solution will be formed at the end of the experiment. In this experiment, the molecules of potassium permanganate diffuse freely in the solvent water and spread uniformly.

Study the following cross represented schematically and answer the questions that follow : What are the phenotypes of father and mother represented in the cross?

Phenotype term is used to describe the observable characteristics in the body of an organism. This helps to study the genetics of a particular organism. There will be two boys and two girls. The father is affected by the disease as he has the defective gene but the mother is carrier of this disease as she has one healthy gene also.

Study the following cross represented schematically and answer the questions that follow : State the genotype of the parent who is heterogametic.

The genotype of the parent who is heterogametic is: Father - X h Y The word genotype means genetic makeup of an individual.

Study the following cross represented schematically and answer the questions that follow : Give the phenotype expression of the four children given in the above cross.

Phenotype term is used to describe the observable characteristics in the body of an organism. This helps to study the genetics of a particular organism. There will be two boys and two girls. One boy will be healthy as there is no defective gene. One girl will be a carrier as one of her genes is defected. The other one boy and one girl will be affected by this disease.