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What is the Anatomical description of the Plasma Membrane |
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Definition
Made up of a phospholipid bilayer, has alot of proteins and cholesterol for stability |
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The cell membrane is semi- permeable to oxygen, steroids, vitamins and alcohol TRUE OR FALSE |
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When substances move down their concentration gradient without ATP |
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Uses ATP to move substances against the pressure gradient |
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When particles diffuse through the membrane bi layer is is known as |
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Proteins are needed to help particles move into the cell by way of |
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Describe the term Osmosis |
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Definition
Movement of water from a high to a low concentration of water |
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The term Tonicity refers to |
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Definition
Concentration of salt solutions in the blood |
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A blood cell in a hypertonic solution leads to |
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Definition
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A blood cell placed in a hypotonic solution leads to |
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Needed for cell division and formation of cilia found in the nucleus |
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Definition
Sites of protein synthesis, binded to the rough Endoplasmic Reticulum |
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Describe Rough Endoplasmic Reticulum |
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Definition
Produces secretory and membrane proteins |
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Describe Smooth Endoplasmic Reticulum |
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Definition
Synthesizes fatty acids and steroids and detoxifies certain drugs |
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Definition
Vesicles that contain enzymes which digest |
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Term
Describe the Golgi Apparatus |
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Definition
Modifies, sorts and packs proteins ready for transport |
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Term
Describe Protein Synthesis |
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Definition
Utilises information from the gene to direct the assembly of proteins |
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Describe the process of Transcription |
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Definition
Takes place in the nucleus where MRNA copies instructions for the building of proteins in the DNA |
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Describe the process of Translation |
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Definition
Takes place in the cytoplasm where MRNA attaches to ribosomes and intiates protein synthesis |
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Term
What is the importance of Mitosis |
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Definition
A cell replicates to produce more cells for growth and repair ie: Skin cells |
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Name the phases of cell division |
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Definition
Interphase, Prophase, Metaphase, Anaphase, Telephase (I Prefer My Anatomy Teacher. |
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Term
What is happening to the cell in the S phase (interphase) of cell division |
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Definition
The cell is resting and DNA is replicating within the cell |
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Definition
Reproductive cell division |
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Name the stages of Meiosis |
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Definition
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Why do cells need to divide |
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Definition
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Name the stages of cell division |
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Definition
Prophase, Metaphase, Anaphase, Telephase |
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Term
What is the cell doing during Interphase (S phase) |
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Definition
Cell is at rest, DNA is replicating within the cell |
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Term
What is the difference between DNA & Chromosomes |
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Definition
DNA has a double helix, a chromosome is tightly coiled |
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Term
What occurs during Protein Synthesis |
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Definition
Protein synthesis uses the info from our genes to direct the building of proteins |
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Term
What is the function of mRNA |
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Definition
Carries information for the building of proteins from the nucleus to the ribosomes |
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Describe the Interphase phase of cell division |
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Definition
The cell has not begun to divide but the DNA inside is dividing into two |
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In what stage does DNA replicate |
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Definition
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Definition
Adenine = Thymine, Cytosine = Guanine |
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Definition
Adenine = Uracil, Cytosine = Guanine |
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What is the process of cell division |
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Definition
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Centrioles move to the poles and direct making of mitotic spindle fibers |
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Chromosomes align in the centre of the cell |
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Definition
Chromosomes are pulled apart and move to opposite ends of the cell |
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Definition
Chromosomes break down and become chromatid |
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Definition
Reproductive cell division |
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