2.2 Tissues, Organs and Organ Systems Flashcards
1
Q
What is differentiation?
A
When a cell become specialised for a particular job
2
Q
When does differentiation occur?
A
During the development of a multicellular organism
3
Q
What is a tissue?
A
A group of similar cells that work together to carry out a function
4
Q
Give some examples of tissues (3)
A
- Muscular tissue - Contracts and relaxes to bring about movement
- Glandular tissue - Makes and secretes chemicals such as enzymes and hormones
- Epithelial tissue - Covers parts of the body
5
Q
What is an organ?
A
A group of tissues that work together to perform a certain function
6
Q
What tissues are used in the stomach and for what purpose? (3)
A
- Muscular tissue - to churn the contents
- Glandular tissue - to produce digestive juices
- Epithelial tissue - To cover the outside and inside of the stomach
7
Q
What is an organ system?
A
A group of organs working together to perform a particular function
8
Q
What organs are used in the digestive system and what are they used for? (6)
A
- Glands - produce digestive juices
- Stomach - digests food
- Liver - Produces bile
- Small intestine - digests food, absorbs soluble food molecules
- Large intestine - absorbs water, produces faeces
9
Q
Give some examples of plant organs (3)
A
- Stem
- Roots
- Leaves
10
Q
Give some examples of plant tissues and their functions (3)
A
- Epidermal tissues - covers the plant
- Mesophyll, carries out photosynthesis
- Xylem and phloem - Transports substances around the plant
11
Q
A
