Cells


by Krish Beachoo on Jan 4, 2022

Image: https://unsplash.com/@yeyosalas
Edu Level: CSEC


Animal Cells

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Mitochondria

  • Power house of the cells.
  • Process of Respiration takes place here.

Respiration Equation

C6​H12​O6​+6O2​→6CO2​+6H2​O+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

Cell Specialization

Movement In & Out of Cells

Diffusion

Factors that Affect Diffusion

Amoeba Diffusion

Diffusion in Living Organisms

Osmosis

Active Transport

Isotonic Solution

Hypotonic Solution

Hypertonic Solution

Visking Tube

REFERENCE VIDEOS:

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