Class 9 Archives - CBSE Class Notes Online

Explore the structure, function, types, and locations of simple epithelial tissue in this detailed guide. Understand how these tissues line organs and cavities, facilitating essential functions like absorption, secretion, and filtration. Examples include skin, lungs, and digestive tract, each demonstrating the unique adaptations of epithelial cells in human anatomy.

Angiosperms- Characteristics, Classification, and Reproductive Biology

April 15, 2024April 15, 2024 - by Jaishree Gorane - Leave a Comment

Discover angiosperms, the largest group of plants. This article explores their distinctive characteristics, reproductive mechanisms, and classification. Learn how angiosperms develop from flowers to fruits, and understand their significant roles in ecosystems. Gain insights into the unique biological processes that define angiosperms, from pollination to seed development.

Class 9

8 Key Differences Between Lysosomes and Ribosomes

March 19, 2024March 19, 2024 - by Jaishree Gorane - Leave a Comment

Lysosomes are membrane-bound organelles containing digestive enzymes, crucial for degrading cellular waste and pathogens, predominantly found in animal cells. Ribosomes, non-membrane-bound structures found in all living cells, are essential for protein synthesis, reading mRNA to assemble proteins. Understanding their distinct roles and structures highlights the complexity of cellular functions and organisation.

Key Organs of the Immune System -Explained in Details

February 7, 2024February 7, 2024 - by Jaishree Gorane - Leave a Comment

This article delves into the immune system, emphasising its organs, such as white blood cells, the lymphatic system, bone marrow, skin, mucous membranes, appendix, and tonsils. It explains their roles in defending against pathogens through mechanisms like producing white blood cells, filtering blood, and creating physical barriers.

Biology Concepts / Class 10 / Class 12 / Class 9 / Science Facts

Voluntary and Involuntary muscles – Characteristics, Differences and Similarities

February 4, 2024February 5, 2024 - by Jaishree Gorane - Leave a Comment

The article explores the characteristics, differences, and similarities between voluntary muscles (which we control consciously, like when walking or jumping) and involuntary muscles (which operate automatically, handling essential functions like heartbeats and digestion). It delves into their control mechanisms, appearances, fatigue levels, and their crucial roles in daily life and bodily functions, providing examples of each and highlighting their significance in movement, stability, and internal processes.

Class 5 / Class 6 / Class 7 / Class 9 / Science / Science Facts

The Water Cycle: The Steps and Hydrologic Processes from Evaporation to Infiltration

December 10, 2023December 13, 2023 - by Jaishree Gorane - Leave a Comment

Discover the Water Cycle: an essential guide covering all stages from evaporation to infiltration. Learn about hydrologic processes including precipitation and transpiration. This article breaks down complex concepts into simple steps, offering a clear understanding of the water cycle’s functions. Ideal for educational insights into Earth’s vital water journey.

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Class 10 / Class 7 / Class 8 / Class 9 / Science Facts

Refraction of Light- A Comprehensive Guide for Students

December 7, 2023December 13, 2023 - by Jaishree Gorane - Leave a Comment

The essentials of light refraction in our comprehensive guide. Understand why light bends through mediums like water and glass, explore the laws of refraction including Snell’s Law, and see real-world applications. Engaging and clear, this article demystifies refraction for high school students, enriching their grasp of this fundamental physics concept

Class 7 / Class 7 Science Chapter-6- Physical and Chemical Changes / Class 9

Differences between Physical and Chemical Changes

October 22, 2023January 19, 2024 - by Jaishree Gorane - Leave a Comment

Certain transformations in matter are categorised as either physical or chemical changes. Physical changes involve alterations in a substance’s physical properties, like shape or state, without changing its composition. In contrast, chemical changes result in new substances forming with different compositions. These distinctions are essential in understanding diverse processes, from melting ice to rusting iron, shedding light on the nature of matter.

FAQs on Endocytosis and Exocytosis

October 6, 2023October 6, 2023 - by Jaishree Gorane - Leave a Comment

Question- What is the primary function of Endocytosis and Exocytosis? Answer- Endocytosis and Exocytosis are important processes for moving materials into and out of cells that are too large to …

Chloroplast – Definition, Structure, Distribution, function and Diagram

June 1, 2023June 22, 2023 - by Jaishree Gorane - 1 Comment

Chloroplasts, found in plant cells, are defined as organelles that contain chlorophyll. They have a complex structure with outer and inner membranes, stroma, thylakoid membranes and grana. Functionally, chloroplasts play a key role in photosynthesis. They convert light energy into chemical energy, produce ATP and oxygen and fixing carbon dioxide. The diagrams illustrate the structure and functions of chloroplasts in plant metabolism.