To suit a specific role to carry out a specialised function so the whole organism functions efficiently.
1 of 16
Why do all cells in an organism contain the same genes?
Because they are all derived from mitotic divisions of the fertilised egg.
2 of 16
What makes cells different from each other?
Different genes are switched on (expressed) in a cell while the other genes are switched off.
3 of 16
Give a feature of a muscle cell?
Many mitochondria.
4 of 16
Give a feature of a white blood cell?
Many lysosomes.
5 of 16
What is a tissue?
A collection of similar cells that perform a specific function.
6 of 16
What does epithelial tissue do?
Line the surfaces of organs and often have a protective secretory functiom.
7 of 16
What is xylem?
Tissue that occurs in plants and made up of a number of cell types. Used to transport water and mineral ions throughout plant and support.
8 of 16
What is an organ?
A combination of tissues that are coordinated to perform a function.
9 of 16
Name three tissues that the stomach is made of and give their functions.
1.) Muscle- churns and mixes stomach contents. 2.) Epithelium- protects stomach wall and produces secretions. 3.) Connective tissue- holds together the other tissues.
10 of 16
Name four tissues that make up a leaf and give their functions.
1.) Paliside mesophyll (made up of paliside cells)- carries out photosynthesis. 2.) Spongy mesophyll- gaseous diffusion. 3.) Phloem- transports organic materials away from leaf. 4.) Xylem- transports water and ions into the leaf.
11 of 16
What is an organ system?
Organs working together.
12 of 16
What organs are included in the digestive system?
Salivary glands, oesophagus, stomach, duodenum, ileum, pancreas and liver.
13 of 16
What is the respiratory system made of?
Trachea, bronchi and lungs.
14 of 16
What organs are included in the circulatory system?
Heart, arteries and veins.
15 of 16
Why is an artery described as an organ but a capillary is not?
Artery is made up of more than one tissue but a capillary is made up of just one.
16 of 16
Other cards in this set
Card 2
Front
Why do all cells in an organism contain the same genes?
Back
Because they are all derived from mitotic divisions of the fertilised egg.
Comments
No comments have yet been made