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Flashcards in Basic Cell Structure Deck (19):
1

What is the limit of resolution?

The minimum distance at which two objects can be distinguished
Light microscope- 0.2 micrometres
Electron microscope- 0.002nm

2

Which type of cells contain organelles?

Eukaryotic cells

3

How many proteins does a normal mammalian cell synthesise?

10,000

4

What is the structure and function of a plasma membrane?

Selective permeability
Transport of materials along cell surface
Endocytosis and exocytosis
Intracellular adhesion
Intracellular recognition
Signal transduction

5

What is the structure and function of the glycocalyx?

Oligosaccharide and polysaccharide coat
Identifier that the body uses to distinguish between healthy cells and foreign or diseased cells

6

What is the structure and function of the nucleus?

Contains the majority of the cells genetic material
Control centre of the cell
Surrounded by the nuclear envelope and contains the nucleolus

7

What is the structure and function of the nuclear envelope?

Double membrane with multiple pores
Pores regulate package of macromolecules but allow free passage of water, ions, ATP and other small molecules

8

What is the structure and function of the nucleolus?

Ribosomes synthesis

9

What is the structure and function of the Smooth ER?

Lipid synthesis e.g. Hormones and lysosomes

10

What is the structure and function of the rough endoplasmic reticulum?

Ribosomes attach with are used for translation for protein synthesis

11

What is the structure and function of secretory vesicles?

Used for transportation around the cell and to the cell membrane where they are secreted

12

What is the structure and function of ribosomes?

Translation for protein synthesis

13

What is the structure and function of the Golgi?

Modify, sort, concentrate and package proteins

14

What is the structure and function of lysosomes?

Contain digestive enzymes which break down waste materials

15

What is the structure and function of peroxisomes?

Breakdown of long fatty acid chains

16

What is the structure and function of mitochondria?

Produce ATP for the cell via respiration
Can divide, have own genetic information, female lineage, double membrane

17

What is the structure and function of the Cytoskeleton?

Framework for movement of organelles through the cell

18

What is the fluid mosaic model?

Contains phospholipid bilayer with hydrophobic tails and hydrophilic head
Within the bilayer there are proteins and cholesterol
This structure is dynamic and moves so the proteins drift throughout
Mosaic as has different components

19

How does the cytoskeleton interact?

Made of microtubules, actin filaments and intermediate filaments
Actin(micro) filaments and intermediate filaments are used as tension bearing cables that maintain cellular shape
Microtubules guide movement of organelles and chromosomes and are support beams

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