BAB 5 Klasifikasi Makhluk Hidup - Karakteristik Makhluk Hidup || IPA Kelas 7 Kurikulum Merdeka

Summary

In this video, the teacher introduces students to the key characteristics of living organisms in line with the Merdeka Curriculum for Class 7. The lesson covers essential traits such as movement, growth, reproduction, response to stimuli, energy use, respiration, excretion, and cellular structure. Examples are given, from plant movements like the sensitive plant closing its leaves to the process of photosynthesis in plants. The teacher explains the differences between unicellular and multicellular organisms, and highlights the importance of these characteristics in distinguishing living beings from non-living objects.

Takeaways

• 😀 Life can be distinguished from non-living things based on certain characteristics.
• 😀 One of the key characteristics of living things is the ability to move, which can be observed more easily in animals than in plants.
• 😀 Living organisms grow and develop, becoming larger or more complex, as seen when a seed grows into a plant.
• 😀 Reproduction is another defining characteristic of life, where living organisms produce offspring that resemble the parent.
• 😀 Reproduction can occur both sexually (involving two parent cells) and asexually (with just one parent).
• 😀 Living organisms respond to stimuli in their environment, such as a human pulling their hand away from something hot.
• 😀 All living things take in and use energy for processes like movement, growth, and reproduction.
• 😀 Plants convert sunlight into energy through photosynthesis, while animals consume other organisms for energy.
• 😀 The law of energy conservation states that energy can neither be created nor destroyed, only transformed from one form to another.
• 😀 Breathing (respiration) is essential for living organisms to produce energy by oxidizing food, releasing carbon dioxide and water as waste products.
• 😀 All living organisms are made up of cells, which can be either unicellular (like amoeba) or multicellular (like humans and animals).

Q & A

What are the general characteristics of living organisms?

The general characteristics of living organisms include the ability to move, grow and develop, reproduce, respond to stimuli, take and use energy, breathe, excrete waste, and have a body made up of one or more cells.

How do animals and plants differ in their ability to move?

Animals usually exhibit easy-to-observe movement, while plants move slowly and less visibly. For example, the closing of a 'mimosa' plant's leaves when touched is a plant movement, whereas animals show quick responses like walking or running.

What is the difference between growth and development in living organisms?

Growth refers to physical changes in size, mass, or volume, while development is a process of maturation leading to adulthood, such as a plant producing flowers and fruits or an animal aging into older stages.

What are the two types of reproduction in living organisms?

The two types of reproduction are sexual reproduction, which involves the fusion of male and female gametes, and asexual reproduction, which requires only one parent organism.

What is the relationship between stimulus and response in living organisms?

Stimulus refers to a change in the environment, while the response is how an organism reacts to that change. For example, touching something hot (stimulus) causes a person to pull their hand away (response).

How do plants respond to stimuli like light?

Plants can respond to stimuli, such as light, by altering their growth direction. A well-known example is the sunflower moving towards the light, which is a response to the stimulus of sunlight.

How do living organisms obtain and use energy?

Living organisms obtain energy either through photosynthesis (in plants) or by consuming other organisms (in animals). Energy is used for movement, growth, reproduction, and other vital functions.

What is photosynthesis and how do plants use it?

Photosynthesis is the process in which plants convert sunlight, carbon dioxide, and water into glucose and oxygen. This process is crucial for the plant's energy production and growth.

What is the role of respiration in living organisms?

Respiration is the process by which living organisms, including plants and animals, use oxygen to break down food and produce energy. The byproducts of this process are carbon dioxide and water.

What is excretion in living organisms?

Excretion is the process by which organisms remove waste products from their bodies. This includes processes like breathing out carbon dioxide, sweating, and urinating in humans, and releasing oxygen during photosynthesis in plants.

What is the difference between unicellular and multicellular organisms?

Unicellular organisms, such as bacteria or amoebas, consist of a single cell, whereas multicellular organisms, like humans or plants, are made up of multiple cells working together to perform various functions.