- What is the lens? Lens – An object made for sight.
- When does light refract? To move from one transparent environment to another
When light is refracted - Which point is called focal point of lens?
- Mention the types of mirrors
- What are autonomic organs and what are their functions?
- They ensure plant nutrition, respiration, growth and development as well as vegetative reproduction.
- 2. What are the reproductive organs of a plant and what do they do?
- Flowers, fruits and seeds are the productive reproductive organs of a plant.
- What are the main functions? The plant is attached to the soil by roots. It consists of main, secondary and lateral roots.
- Do you know the route changes?
- What is a shoot? What is the main function of shoots?
- What does the stem do?
- What is the significance of the leaves? T:apparentlyOne of the most important plant organs.
What is a cell?
A cell is the structural unit from which all living organisms are formed.
What are the main chemical components of cell structure?
Cells of all types of organisms are composed of chemical elements found in non-living nature. Carbon (C), Hydrogen (H), Oxygen (O), Nitrogen (N) predominate.
What are the main structural parts of a cell?
A nucleated cell contains a cell membrane, cytoplasm, and a nucleus.
What is the importance of cell membrane?
The cell membrane limits the cell from the environment, gives it a certain shape, protects it from the effects of the environment, ensures the exchange of substances with the environment.
What is tissue?
Groups of cells that have the same shape, structure, origin, perform the same function and are connected to each other by intercellular substances are called tissues.
What tissues are there in sprouts?
Plant tissues are: generative, covering, basic, transport, mechanical.
Do you know animal tissue?
There are four types of tissues in the animal world: epithelial, connective, muscular and nervous.
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