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Cells
Cells
Edu Level: CSEC
Date: Jan 4, 2022
⏱️Read Time:
Animal Cells
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Mitochondria
- Power house of the cells.
- Process of Respiration takes place here.
Respiration Equation
C6H12O6+6O2→6CO2+6H2O+ATP
GLUCOSE + OXYGEN → CARBON DIOXIDE + WATER + ENERGY
- Cells from your muscles has more mitochondria than those for example in your cheek.
- Where more energy is needed, there will be more mitochondria in the cells.
Cell Membrane
- Controls what enters and leaves the cell.
- Partially Permeable.
- Gives cell its Shape.
Cytoplasm
- Clear like jelly substance made up of 70% water with dissolved salts and minerals,
- All chemical reactions take place here.
Nucleus
- The brain of the cells
- Controls all activities of the cell.
- Contains genetic information for reproduction.
Ribosomes
- Important for synthesis of protein molecules.
Endoplasmic Reticulum
Rough Endoplasmic Reticulum (RER)
- Contains ribosomes attached to it.
- Packages and assembles proteins.
Smooth Endoplasmic Reticulum (SER)
- Have no ribosomes attached to it.
- Responsible for packaging fats and lipids.
Animal Cells have an irregular roundish shape
Plant Cells
ALL ANIMAL CELL ORGANELLES ARE FOUND IN A PLANT CELL.
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Cell Wall
- Made up of Cellulose (tough material).
- Fully Permeable.
Chloroplast
- Has a green pigment called chlorophyl.
- Absorbs energy from sunlight to carry out a process called photosynthesis.
Large Permanent Vacuole
- Filled with cell sap.
- Animal Cells have vacuoles which are normally small and temporary.
Plant Cells have a Box Like Shape
Differences
Unicellular Organisms
- Organisms that only has 1 type of cell.
- Examples: Amoeba & Bacteria.
Multicellular Organisms
- Organisms that have more that 1 type of cell.
- Examples: Plants & Animals