Science Archives - Page 21 of 59 - CBSE Class Notes Online

Endocytosis and Exocytosis – Differences , Similarities ,Roles, Steps , Types

April 26, 2023October 6, 2023 - by Jaishree Gorane - Leave a Comment

Endocytosis and Exocytosis are cellular processes used to move molecules in and out of cells, respectively. Endocytosis involves the formation of a vesicle to engulf and transport molecules into the cell, while exocytosis involves the fusion of a vesicle with the plasma membrane to release molecules out of the cell. These processes play important roles in nutrient uptake, waste elimination, cell communication etc.

Amoeba Diagram for Class 7

April 23, 2023April 23, 2023 - by Jaishree Gorane - 1 Comment

The Amoeba is a single-celled organism of Protozoa phylum.It is a type of unicellular Protist that can be found in a variety of environments. The amoeba diagram is a simple and easy-to-draw representation of this organism, neatly labeled to help students in class 7 understand its structure. The essential features of the amoeba diagram comprise the pseudopod, cytoplasm, food vacuole, nucleus and other parts.

Human Circulatory System

April 7, 2023February 7, 2024 - by Jaishree Gorane - 5 Comments.

The human circulatory system is responsible for delivering oxygen, nutrients, and hormones to cells and tissues throughout the body. It consists of the heart, blood vessels and blood. The heart pumps oxygenated blood to the body through arteries and the deoxygenated blood returns to the heart through veins. The circulatory system also helps remove waste products from cells and helps regulate body temperature.

Biology / Biology Concepts / Chapter 6 Life Processes - Class 10 / Class 10 / Class 12 / NEET Biology / Notes / Science / Science Facts / Transportation / Uncategorized

Ascent of Sap

April 5, 2023May 3, 2023 - by Jaishree Gorane - 1 Comment

The Ascent of Sap is the movement of water through the Xylem vessels from the roots to the leaves. It is essential for various processes such as photosynthesis, transpiration and respiration. The cohesion-tension theory is widely accepted to explain the mechanism of the Ascent of Sap, where water moves up through the Xylem vessels due to a combination of transpiration and cohesive forces. Factors such as temperature, humidity, and wind affects Ascent of Sap

Biology / Biology / Biology Concepts / Chapter 6 Life Processes - Class 10 / Class 10 / Class 11 / Class 12 / NEET Biology / Science / Science Facts / Transportation

Blood Coagulation (Blood Clotting)

April 3, 2023November 9, 2023 - by Jaishree Gorane - Leave a Comment

Blood coagulation or blood clotting is a complex process that prevents excessive bleeding after an injury. It involves platelets, clotting factors, fibrin, and endothelial cells and occurs in a series of steps including vasoconstriction, platelet activation, the coagulation cascade, clot retraction and fibrinolysis. There are many clotting factors involved in coagulation. Disruptions to any of them can lead to bleeding disorders or unwanted blood clots.

What will happen if Platelets were Absent in the Blood

March 28, 2023May 3, 2023 - by Jaishree Gorane - Leave a Comment

What are Platelets? Platelets are small, colourless blood cells that play an important role in the human body. They are formed in the bone marrow and circulate in the blood. …

Components of Xylem

March 24, 2023March 24, 2023 - by Jaishree Gorane - 9 Comments.

Xylem is a vital plant tissue responsible for the transport of water and nutrients from the roots to the leaves. It is made up of several components, including tracheids, vessel elements, fibers and parenchyma cells. Tracheids and vessel elements form long tubes that allow for efficient water transport, while fibers provide structural support. Parenchyma cells help with storage and metabolic functions.

Phloem – Definition, Structure, Function, Types and How does Phloem tissue work

March 23, 2023March 23, 2023 - by Jaishree Gorane - 5 Comments.

Phloem tissue is a type of vascular tissue in plants that transports sugars, amino acids, hormones and other organic compounds from the leaves to the rest of the plant. The tissue is made up of several different types of cells like sieve tube elements, companion cells, phloem parenchyma and phloem fibers. Phloem tissue plays a critical role in plant growth and development by facilitating the transport of hormones, defending against pathogens, transmitting signals and storing nutrients. There are two types of phloem tissue- primary phloem and secondary phloem.

Phloem Diagram – Longitudinal and Transverse Section Diagram of Phloem Tissue

March 20, 2023March 20, 2023 - by Jaishree Gorane - 8 Comments.

The Phloem is a plant tissue responsible for translocating organic nutrients and other substances from leaves to other parts of the plant. Longitudinal and Transverse Phloem Diagrams show the internal structure of the tissue, including Sieve tubes, Companion Cells, Phloem Fibers and Phloem Parenchyma cells.Netaly labelled easy to draw Phloem Diagram – Longitudinal and Transverse Section Diagram of Phloem Tissue explained with description of Labels

Biology / Biology / Chapter 6 Life Processes - Class 10 / Class 10 / Class 11 / Class 12 / Class 9 / NEET Biology / Science / Tissues- Chapter 6 / Transportation / Uncategorized

Xylem – Definition , Structure, Components (Types), Functions And Importance

March 19, 2023April 2, 2023 - by Jaishree Gorane - 11 Comments.

Xylem is a specialized tissue in vascular plants that transports water and minerals from roots to the rest of the plant. It is composed of tracheids, vessel elements, xylem parenchyma, xylem fibers and xylem rays. Water transport is driven by root pressure and transpiration pull. Xylem provides structural support, stores nutrients and transports signaling molecules. Its transport mechanism is a combination of physical and biological factors.