Biology
- Prokaryotes Vs Eukaryotes
While eukaryotic cells and prokaryotic cells have some characteristics in common, they diverged from their common ancestor billions of years ago, thus accounting for significant differences in overall structure and function. Here we will go over them....
- #4. Cell Structure And Function
Describe and interpret drawings and photographs of typical animal and plant cells. Note that plant cells are always surrounded by a cell wall made of cellulose, never found around animal cells. Typical animal and plant cells as seen using...
- #2.2. Cell Structure - Syllabus 2016
1.1 The microscope in cell studies1.2 Cells as the basic units of living organisms All organisms are composed of cells. Knowledge of their structure and function underpins much of biology. The fundamental differences between eukaryotic...
- #2.1. Cell Structure - Syllabus 2015
? The microscope in cell studies ? Cells as the basic units of living organisms ? Detailed structure of typical animal and plant cells, as seen using the electron microscope ? Outline functions of organelles in plant and animal cells ? Characteristics...
- Cell Organelles In Eukaryotes
Name of the cell organelle Functions 1. Cell wall (Absent in animals and some protists. Present in bacteria, fungi, algae and plants). - Gives rigidity and support to the tissues and organs. Gives characteristic...
Biology
Summary of the differences between plant and animal cells
The differences between plant and animal cells. Main points:
Plant Cell | Animal Cell | |
Differences: | · Bigger · Large vacuole · Have cell wall · Regular cell shape · Have chloroplasts | · Smaller · Small vacuole or not present · No cell wall · Irregular cell shape · No Chloroplasts |
Similarities: | · Have nucleus · Have nucleolus · Have mitochondria · Have endoplasmic reticulum · Have ribosomes | · Have nucleus · Have nucleolus · Have mitochondria · Have endoplasmic reticulum · Have ribosomes |
Some points about some of the organelles:
Nucleus - Contains the DNA (the genetic information)
Nucleolus ? Produces ribosomes, which move out and are involved with protein synthesis
Vacuole ? In plants these store nutrients and waste products. They also provide turgor pressure, which gives rigidity in plants. In animals, they are involved with intracellular digestion and waste products.
Endoplasmic Reticulum (ER)- There is the smooth, which is involved with production of chemicals such as hormones. The rough ER is involved with protein synthesis as ribosomes are on the surface.
Ribosomes - The messenger RNA moves along them with the transfer RNA bringing the appropriate amino acids to build up particular proteins
- Prokaryotes Vs Eukaryotes
While eukaryotic cells and prokaryotic cells have some characteristics in common, they diverged from their common ancestor billions of years ago, thus accounting for significant differences in overall structure and function. Here we will go over them....
- #4. Cell Structure And Function
Describe and interpret drawings and photographs of typical animal and plant cells. Note that plant cells are always surrounded by a cell wall made of cellulose, never found around animal cells. Typical animal and plant cells as seen using...
- #2.2. Cell Structure - Syllabus 2016
1.1 The microscope in cell studies1.2 Cells as the basic units of living organisms All organisms are composed of cells. Knowledge of their structure and function underpins much of biology. The fundamental differences between eukaryotic...
- #2.1. Cell Structure - Syllabus 2015
? The microscope in cell studies ? Cells as the basic units of living organisms ? Detailed structure of typical animal and plant cells, as seen using the electron microscope ? Outline functions of organelles in plant and animal cells ? Characteristics...
- Cell Organelles In Eukaryotes
Name of the cell organelle Functions 1. Cell wall (Absent in animals and some protists. Present in bacteria, fungi, algae and plants). - Gives rigidity and support to the tissues and organs. Gives characteristic...