THE CELL AND ITS ENVIRONMENT
CONTENT
- Introduction
- Diffusion
- Osmosis
- Plant Nutrition
- Micro and Macro Elements
Introduction
The topic ‘Cell and its Environment’ refers to the activities of the cell in a given environment or the functions of the cell given a particular condition. Some conditions can be harmful to the cell while others are helpful for proper functioning of the cell. This is why we discuss the cell and its environment.
Diffusion
Diffusion can take place in liquid and gases, but diffusion is faster in gases than in liquid, because air and gases as a medium has more spaces to be filled.
Diffusion can be defined as the process by which molecules of substances, such as liquid and gases move randomly from a region of higher concentration to a region of lower concentration until they are evenly distributed.
It is also a process by which fine particles (molecules) flow in and out of cells of living things, and it can occur in non-living things or membrane.
SUGGESTED PRACTICALS
Stand at the corner of the classroom, and spray a perfume, after a while the scent of the perfume will circulate the whole class and every student will attest to the perception.
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