Podcast
Questions and Answers
What is the main characteristic of unicellular organisms?
What is the main characteristic of unicellular organisms?
What is the term for a group of similar cells that perform a specific function?
What is the term for a group of similar cells that perform a specific function?
Who coined the term 'animal tissue'?
Who coined the term 'animal tissue'?
What is the term for the study of tissue?
What is the term for the study of tissue?
Signup and view all the answers
What is the function of connective tissue?
What is the function of connective tissue?
Signup and view all the answers
What is the main function of epithelial tissue?
What is the main function of epithelial tissue?
Signup and view all the answers
What is the result of the division of labour in the human body?
What is the result of the division of labour in the human body?
Signup and view all the answers
How many basic types of tissues are found in complex animals?
How many basic types of tissues are found in complex animals?
Signup and view all the answers
Study Notes
Organization of Life
- Unicellular organisms perform all functions like digestion, respiration, and reproduction using a single cell.
- Multicellular animals have different groups of cells performing specific functions in a well-organized manner.
Tissue
- A group of similar cells with similar origin, along with intercellular substances, perform a specific function.
- This organization of cells is called tissue.
- The human body is composed of billions of cells, which are organized into tissues.
Types of Tissues
- There are four basic types of tissues: epithelium, connective, muscular, and nervous.
- Each type of tissue has specific functions and structures.
Epithelium Tissue
- Epithelium is a covering and protective tissue.
- Cells in epithelium tissue are always arranged in uniform layers.
- Epithelium tissue originates first during embryonic development.
- It has the power of regeneration.
- The word "epithelium" comes from the Greek words "epi" meaning "upon" and "thelia" meaning "growth".
Other Tissues
- Connective tissue connects structures, provides support to the body, and transports substances.
- Muscular tissue helps in locomotion and movement.
- Nervous tissue controls and coordinates functions.
Histology
- The study of tissue is called histology.
- The word "animal tissue" was coined by Bichat, while "plant tissue" was coined by Grew.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers the basic structure and function of cells in unicellular and multicellular organisms, including their roles in digestion, respiration, and reproduction.
