Q1. What is a cell? Why is the cell called the functional unit of life?
Ans: A cell can be defined as the smallest structural and functional unit of an organism. The cell is typically microscopic and consists of cytoplasm and a nucleus enclosed in a membrane.
The cell is called the fundamental unit of life as all the life activities are performed by cells. There are two types of organisms on the basis of the number of cells present in them: Unicellular organisms (single-celled) and Multicellular organisms (having a large number of cells). As per scientific theories, unicellular organisms are one of the earliest forms of life on earth.
Q2. What are the main differences between a plant cell and an animal cell?
Ans: Following are some of the major differences between a plant cell and an animal cell:
A plant cell is larger than an animal cell.
The shape of a plant cell is a fixed rectangular shape, whereas an animal cell is mostly round and irregular in shape.
Plant cells store energy in the form of scratch while animal cells store energy in the form of complex carbohydrates and glycogen.
A plant cell is enclosed by a rigid cell wall whereas animal cells are enclosed by a flexible plasma membrane.
Q3. How are online notes on the difference between plant and animal cells useful?
Ans: The Fundamental Unit of Life is an important chapter of Class 9 Science textbook. Understanding the difference between plant and animal cells is important for Class 9 students as this is a commonly asked question in the exam. Students need to clearly understand how to differentiate between plant cells and animal cells along with the diagram. This is what they can achieve by referring to the online notes on the difference between plant and animal cells. These notes are created by expert Biology teachers and it tries to explain the topics in a simple language with relevant examples and figures. These online notes are really helpful in scoring good marks in exams.
Q4. Which site provides the best notes on the difference between plant and animal cells?
Ans: You can find the free PDF on the difference between plant and animal cells on Vedantu. These online materials are created by experts and include all the necessary details on the topic. At Vedantu, you can find notes on many such important topics which are essential from the examination point of view. Vedantu is a renowned online learning platform that provides notes created with emphasis on highlighting the important points related to a topic. When it comes to the Class 9 Science CBSE syllabus, The Fundamental Unit of Life is an important topic and understanding the distinctive features between a plant and animal cell is crucial.