Growth is the process of increasing in physical size. In living organisms, growth involves an increase in the number of cells and the size of these cells. It is a fundamental characteristic of all living things and is essential for their survival and development.
Types of Growth
Cellular Growth: This involves an increase in the number of cells through cell division.
Hypertrophic Growth: This type of growth involves an increase in the size of individual cells.
Organismal Growth: The overall increase in the size of an organism as it develops from infancy to adulthood.
Factors Affecting Growth
Several factors influence the growth of living organisms including:
Plants exhibit growth through the process of cell division and elongation. The growth of plants is influenced by factors such as sunlight, water, soilnutrients, and hormones such as auxins and gibberellins.
Growth in Animals
Animals grow through a combination of cell division and hypertrophic growth. Growth in animals is also influenced by genetic factors, nutrition, and hormonal regulation. Growth rates vary among different species of animals.
Study Guide for Growth
Define growth and explain its significance in living organisms.
Discuss the different types of growth and provide examples of each.
Explain the factors that influence growth in living organisms.
Compare and contrast the growth processes in plants and animals.
Skills and Processes: Students will demonstrate the thinking and acting inherent in the practice of science.
Applying Evidence and Reasoning: Review data from a simple experiment, summarize the data, and construct a logical argument about the cause-and-effect relationships in the experiment.
Describe the reasoning that lead to the interpretation of data and conclusions drawn.