Biology

This chapter explores the different phases of the cell cycle. It briefs on cell division and its types. It discusses the important features, significance and various stages of mitosis and meiosis.

In this chapter, we will study the basic structure of chromosomes, different shapes of chromosomes and genes which are located on it. We will learn the structure of DNA and Watson and Crick model of DNA.

This chapter discusses genetics and its fundamentals. It explains the variation in the population, chromosomes, and its two major categories. We will learn how to determine the sex of the child.

This chapter deals with the concept of human evolution. It explains the evolution of modern people. We will learn the theories of evolution. Cranial capacities of different human ancestors are also listed here.

In this chapter, we will learn the different minerals required by plants for their growth. It highlights the characters of roots which helps in absorbing water. It briefs on inhibition, diffusion and osmosis.

The chapter explores the process of transpiration in plants. We will learn the types of transpiration and the factors affecting it. The advantages and disadvantages of transpiration are briefed here.

This chapter deals with the process of photosynthesis and its importance. We will learn the requirements and mechanism of photosynthesis. It briefs on chloroplast which is the site of photosynthesis.

This chapter sheds light on the main parts of the circulatory system and the process of circulation in the body. It discusses the components of blood and the types of blood groups. It describes the blood pressure and how to keep the heart healthy.

This chapter deals with the substances that need to be eliminated from the body. It discusses the different excretory organs in humans. It explains the external and internal structure of the kidney.

This chapter discusses the nervous system and its functions. We will learn about neurons and its parts with the aid of diagram. It explains the parts of the brain and their functions. It also briefs on blood platelets and reflex action.

This chapter discusses the chemical coordination in plants. Here, we will discuss the physiological effects of different plant hormones, such as auxins, gibberellins, cytokinins, along with their functions.

In this chapter, we will learn coordination mechanisms in humans. It explains the terms exocrine and endocrine glands, endocrine system, and hormones. It also describes the changes that occur during adolescence and the importance of personal hygiene.

This chapter sheds light on the human reproductive system. We will learn in detail about the male and female reproductive system. It discusses the structure and functions of sperm and ovum. It also explains the ovarian cycle in females.

In this chapter, we will learn about the different types of pollution. It briefs on air, water, soil, noise, and radioactive pollution along with their sources. We will also learn the effects of each pollution on our environment.

The chapter discusses the human population growth rate and the factors affecting it. We will learn about population growth curve and population explosion. It briefs on the methods of population control.

In this chapter, we will learn about active and passive immunity. It explains the defence systems of the human body. It also briefs on the different health organisations and their categories.