gk lokam: Zoology

6 November 2019

50 Questions on Biology|Expected Biology Question and Answers for Competitive Exams

Author Biology , Q & A

50 Questions on Biology|Expected Biology Question and Answers for Competitive Exams

1. Vermiculture is related to: Earth Worm

2. Silver Revolution is related to the enhanced production of: Poultry

3. White Revolution is related to the enhanced production of: Milk

4. Antibiotic Penicellin is produced by: Fungi

5. Birds includes in the class: Aves

20 October 2019

Human Body Basics |Components of Human Body

Author Biology , Human Body

Human Body Basics -Components of Human Body

Elements of Human Body

Clinical Composition of Human Body

More than 93 per cent of the human body consists of three chemical elements-oxygen (65%), carbon (18.5%), and hydrogen (10%).

Nitrogen (3%), calcium (1.5%), and phosphorus(1%) are also present in significant amounts.

At least 54 chemical elements feature in total, but most of these are tiny traces.

Tissues and Types of Tissues in Human Body

Author Biology , Human Body

Tissues and Types of Tissues in Human Body

Tissues

Tissues are groups of connected cells.

Many tissues are made entirely from one type of cell.

The four main types of tissue in the human body are;

Connective tissue
Epithelial tissue
Muscular tissue
Nervous tissue

What Makes a Body?Making a Human

Author Biology , Human Body

What Makes a Body?Making a Human

What Makes a Body?

The human body is made from the same components as every other living thing. It is the way that they are put together that makes our bodies uniquely human.

The basic materials are simple chemicals such as water, carbon, and oxygen, but they join to create more complex compounds. Trillions of microscopic cells become the building blocks of life, grouping together to form skin, bones, blood, and organs, until the body becomes complete.

Making a Human

Everything in the body is made up of atoms, the tiniest building blocks of matter.

Atoms combine to form molecules.

Millions of molecules form every cell in the body.

There are more than 200 types of cell,

with similar cells working in teams called tissues.

The body's many organs and systems are made up of-

different tissues.

Atoms =>Molecules =>Cell=>Tissue=>Organ=>Body System

Atoms and molecules

The smallest parts in the body are atoms.
These tiny building blocks form the elements in the body, such as carbon.

Atoms can also join together in groups called molecules -

for example, water is a molecule, made from a combination of hydrogen and oxygen atoms.

Cell

Molecules build up to create body cells.
There are about 37 trillion cells in the average human, with different types of cells carrying out a variety of body functions, from transporting oxygen to sensing light and colour in the eye.

Tissue

Cells performing the same function are grouped together to form body tissues, such as skin, fat, or heart muscle.

Blood is also a tissue, in liquid form.

Organs:

Different kinds of tissue combine to make larger structures called organs.
Each organ works like a machine,performing its own role.

An example of an organ is the stomach, which plays a part in the process of digesting food.

Body system

Organs are at the centre of 12 internal body systems.

Each system has a specific job to keep the body in working order.

The stomach is one of the main organs of the digestive system.

Complete human

When this complex combination of integrated systems, organs, and tissues work together, the human body is complete.

Each individual component plays its part in maintaining a fully functioning body.

6 November 2019

50 Questions on Biology|Expected Biology Question and Answers for Competitive Exams

50 Questions on Biology|Expected Biology Question and Answers for Competitive Exams

20 October 2019

Human Body Basics |Components of Human Body