Animal + plant organs Flashcards
What are large multicellular organisms made up of?
Organ systems.
What do multicellular organisms develop systems for?
Exchanging materials.
Why are cells specialised?
To carry out a particular function.
What is the name of the process in which cells become specialised?
When does this process occur?
- Differentiation.
- During development, multicellular organism
(During the development
of a multicellular organism, cells differentiate so
that they can perform different functions)
What do the specialised cells form?
Tissues –> Which form organs –> Which form organ systems.
What is a tissue?
A group of cells
similar structure + function
What does a muscular tissue do?
Contracts to bring about movement.
What does a glandular tissue do?
Makes and secretes chemicals like enzymes and hormones.
What does an epithelial tissue do?
Covers some parts of the body.
What is an organ?
group of different tissues
that work together, perform certain function
One organ, several tissues.
What is the function of muscular tissues? (stomach)
Churn the contents
What is the function of glandular tissues? (stomach)
Making digestive juices to digest food.
What is the function of epithelial tissues? (stomach)
Covering the inside and outside of the stomach.
What are organ systems?
Groups of organs that perform a particular function.
What does the digestive system include?
Glands The stomach The liver The small intestine The large intestine
Give 2 examples of glands in the digestive system and say their role
- The pancreas and salivary glands
- Produce digestive juices
Where does digestion occur in the digestive system?
The stomach and the small intestine
What is produced in the liver?
Bile
Rather than digestion, what else occurs in the small intestine?
The absorption of soluble food
What takes place in the large intestine?
Water is absorbed from the undigested food, producing feaces.
what do plant organs include?
stems, roots, leaves
plant tissues + function
mesophyll
photosynthesis
epidermal
cover plant
xylem + phloem
transport substances around plant
