Level Of Organisation
Overview
A single heart cell cannot pump blood around the body on its own. Thousands of cardiac muscle cells, working together as a tissue, contract in rhythm. Those tissues combine into the heart organ, which forms part of the circulatory system. This layered arrangement, from the smallest organelle to the largest organ system, is how complex organisms achieve things no single cell could manage alone.
In this lesson you will learn the five levels of organisation in multicellular organisms: organelles, cells, tissues, organs and organ systems. You will explore examples from both animals and plants and practise identifying each level in diagrams.
Objectives
- Describe the levels of organisation in organisms: organelles, cells, tissues, organs and systems
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Level Of Organisation. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- Which of the following correctly lists the levels of organisation from smallest to largest? A) Cell, organelle, tissue, organ, organ system B) Organelle, cell, tissue, organ, organ system C) Organelle, tissue, cell, organ, organ system D) Cell, tissue, organelle, organ system, organ Answer: B
- A group of similar cells working together to perform the same function is called: A) An organ B) An organism C) A tissue D) An organ system Answer: C
- Which of the following is an example of an organ? A) A single muscle cell B) The lungs C) A mitochondrion D) Epithelial tissue Answer: B
- The circulatory system is an example of: A) A tissue B) An organ C) An organ system D) A cell Answer: C
- Which organelle is the site of aerobic respiration? A) Nucleus B) Ribosome C) Chloroplast D) Mitochondrion Answer: D
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
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