B2.2 - Tissues, Organs, and Organ Systems Flashcards
What is differentiation?
Differentiation is the process in which cells become specialised.
When does differentiation occur?
Differentiation occurs during the development of a multicellular organism so that they can perform different functions.
What is the definition of a tissue?
A tissue is a group of cells with a similar structure and function.
What is muscular tissue?
Muscular tissue is tissue which contracts to move whatever it’s attached to.
What is glandular tissue?
Glandular tissue is tissue which makes and secretes chemicals like enzymes and hormones.
What is epithelial tissue?
Epithelial tissue is tissue which covers some part of the body.
What is the definition of an organ?
An organ contains different tissues working together to carry out a function.
What do the tissues do in the stomach?
Muscular tissue, to churn the contents.
Glandular tissue, to produce digestive juices.
Epithelial tissue, to cover the outside and the inside of the stomach.
What is meant by an organ system?
An organ system is a group of organs working together to perform a particular function.
What do the glands do in the digestive system?
The glands, such as the pancreas and salivary glands, produce digestive juices.
What does the stomach do in the digestive system?
The stomach digests food.
What does the liver do in the digestive system?
The liver produces bile.
What does the large intestine do in the digestive system?
The large intestine absorbs water from undigested food and leaves faeces.
What does the small intestine do in the digestive system?
The small intestine absorbs soluble food molecules.
