3.2.1 Cell Structure Flashcards

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1
Q

What are Eukaryotic Cells?

A

Eukaryotic cells contain a nucleus and membrane-bound organelles

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2
Q

What is the STRUCTURE of the Cell-Surface Membrane

A
  • Surrounds a cell
  • Made of phospholipids and proteins
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3
Q

What is the FUNCTION of the Cell-Surface Membrane

A

Controls the movement of substance (ions, molecules) into and out of the cell

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4
Q

What are the STRUCTURES of a Nucleus 4

A

Nuclear Envelope - Double plasma membrane with pores which controls what goes in and out of the nucleus
Nucleoplasm - Similar to the cytoplasm. Contains Chromatin
Nuclear Pores - Allows the passage of large molecules such as mRNA out of the nucleus
Nucleolus - Manufactures ribosomal RNA and assembles ribosomes

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5
Q

What is the FUNCTION of a Nucleus

A
  • Acts as the control centre through the production of mRNA and rRNA
  • Retains genetic material to from DNA na d chromosomes
  • Manufactures of rRNA and ribosomes
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6
Q

What is the STRUCTURE of Mitochondria

A
  1. DOUBLE MEMBRANE STRUCTURE
    - Outer Membrane - Controls what goes in and out of the mitochondria
    - Inner Membrane - Folds to from Cristae
  2. Cristae
  3. Matrix
  4. Mitochondrial DNA is present so that the mitochondria can produce their own ribosomes
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7
Q

What is Cristae (Mitochondria)

A

Cristae is an extension of inner membrane. It has a large Surface Area for the attachment of enzymes and other protiens that are involved in areobic respiration

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8
Q

What is the Matrix (Mitochondria)

A

Remainder of the mitochondria. (Fluid) and contains enzymes for aerobic respiration, producing ATP.

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9
Q

What is the FUNCTION of Mitochondria

A
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