Cells Tissues and organs
- Created by: rcowling
- Created on: 07-09-15 14:35
View mindmap
- Cells, Tissues and Organs
- Animal cells have a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes. What is the function of each of these?
- Plant and algal cells also have a vacuole, cell wall and chloroplasts. Why?
- Bacterial cells have a cytoplasm and a cell membrane surrounded by a cell wall. What do they importantly NOT have?
- Yeast cells have a nucleus, cytoplasm and a membrane surrounded by a cell wall.
- Cells may be specialised to carry out a particular function. What is special about fat cells, cone cells, sperm cells and root hair cells?
- Dissolved substances can move in and out of cells by diffusion.
- They move down their concentration gradient from a region of ____ concentration to a region of ____ concentration.
- Diffusion will be faster if it is hotter or if there is a bigger concentration difference.
- Give two substances required for respiration that pass through cell membranes by diffusion.
- An organism is made up of tissues, organs and organ systems.
- A tissue is a group of cells with similar structure and function. For example muscular tissue, glandular tissue and epithelial tissue. What is the purpose of each of these tissues?
- Organs are made of tissues. One organ may contain several different tissues. The stomach contains muscual, glandular and epithelial tissue. Why would the stomach need each of these?
- Organ systems are groups of organs that perform a particular function. Which organs does the digestive system contain? What is the purpose of each?
- Plants organs include stems, roots and leaves. The tissues which make up these organs are epidermal, mesophyll, xylem and phloem. What is the purpose of each tissue?
- Animal cells have a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes. What is the function of each of these?
Comments
No comments have yet been made