Welcome To My School Study
Do You Know
1. Respiration Equation (Balanced Chemical Equation)
Respiration is the process by which living organisms break down glucose to release energy.
Balanced Equation:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + Energy
Understanding the process:
- Glucose reacts with oxygen
- Energy is released for body activities
- Carbon dioxide and water are formed as by-products
Why it is called balanced:
The number of atoms of each element is equal on both sides of the equation.
Importance:
Respiration provides energy needed for growth, movement, and all life processes.
2. pH of Gastric Juice (Less than 7)
Gastric juice present in the stomach is acidic in nature.
Why acidic:
It contains hydrochloric acid (HCl), which lowers the pH below 7.
Functions of gastric juice:
- Helps in digestion of food
- Kills harmful bacteria
- Activates digestive enzymes
Understanding pH:
- pH less than 7 → acidic
- pH equal to 7 → neutral
- pH more than 7 → basic
Example:
The stomach maintains an acidic environment for proper digestion.
3. Graphite – Conducting Non-Metal
Graphite is a non-metal, but it can conduct electricity.
Reason:
It contains free electrons that can move easily through its structure.
Special property:
Most non-metals do not conduct electricity, but graphite is an exception.
Uses of graphite:
- Electrodes in batteries
- Pencil lead
- Electric motors
Structure:
Graphite has layers of carbon atoms arranged in a special pattern.
4. Function of Xylem in Plants
Xylem is a plant tissue responsible for transporting water and minerals from roots to different parts of the plant.
Main Functions:
- Carries water upward from roots
- Transports dissolved minerals
- Provides support to the plant
Direction of transport:
Movement happens mainly upward.
Difference from phloem:
- Xylem → transports water and minerals
- Phloem → transports food
Example:
Water absorbed by roots reaches leaves through xylem vessels.
5. Full Form of DNA
DNA stands for Deoxyribo Nucleic Acid.
What is DNA?
DNA is the genetic material present in living organisms.
Functions of DNA:
- Stores genetic information
- Controls body development and functions
- Transfers hereditary characters from parents to offspring
Location:
DNA is mainly found inside the nucleus of cells.
Importance:
It plays a major role in growth, reproduction, and inheritance.