Chapter 3 - Tissues and organs Flashcards
1
Q
What is a tissue?
A
a group of cells with similar structure
2
Q
What is an organ?
A
collections of tissues. Each organs contains several tissues all working together to perform a specific function
3
Q
What is an organ system?
A
a group of organs all work together to perform a specific function
eg. digestive system, circulatory system, gas exchange system
4
Q
List the organisms from smallest to largest
A
gene - DNA- chromosone- nucleus- cells - tissues - organs - organ system- organism
5
Q
Is a SPERM a cell, tissue or an organ?
A
cell
6
Q
Is a Kidney a cell, tissue or an organ?
A
organ
7
Q
Is a STOMACH a cell, tissue or an organ?
A
organ
8
Q
How is a stomach adapted for digestion?
A
- Has 3 layers of muscle tissue to produce churning of food and digestive juices together
- Has several pockets that collect food for later use
- glandular tissues produce digestive juices to help break down the food
