Сells and development lecture 1 +organelles

Descripción

1st year Biochemistry and molecular biology Test sobre Сells and development lecture 1 +organelles, creado por MrSujg el 30/11/2015.
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Test por MrSujg, actualizado hace más de 1 año
MrSujg
Creado por MrSujg hace alrededor de 9 años
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Resumen del Recurso

Pregunta 1

Pregunta
Match the organelle with its functions (Plasma membrane)
Respuesta
  • controls movement of molecules in and out of the cell

  • cell signalling
  • cell adhesion
  • has its own genome

  • principal site of ATP synthesis
  • contain enzymes that degrade obsolete cellular components
  • acidic

Pregunta 2

Pregunta
Match the organelle with its functions (Mitochondria)
Respuesta
  • “power plant” of the cell

  • has a double membrane

  • has its own genome

  • principal site of ATP synthesis
  • rRNA processing

  • synthesis of fatty acids and phospholipids

  • Ca2+ storage in cell

Pregunta 3

Pregunta
Match the organelle with its functions (Lysosomes)
Respuesta
  • contain enzymes that degrade obsolete cellular components
  • acidic
  • convert H2O2 to H2O
  • protein transport in vesicles

Pregunta 4

Pregunta
Nucleolus
Respuesta
  • within nucleus

  • has no membrane

  • rRNA processing

  • ribosomal assembly
  • has a double membrane • contains DNA genome

  • mRNA, tRNA synth
  • protein transport in vesicles

Pregunta 5

Pregunta
Nucleus
Respuesta
  • has a double membrane
  • mRNA, tRNA synth
  • contains DNA genome


Pregunta 6

Pregunta
Smooth endoplasmic reticulum (SER)
Respuesta
  • synthesis of fatty acids and phospholipids

  • Ca2+ storage in cell
  • protein folding
  • protein modification

Pregunta 7

Pregunta
Rough endoplasmic reticulum (RER)
Respuesta
  • ribosomes

  • protein synthesis

  • protein folding
  • support membranes, organise organelles
  • important for cell movement
  • controls movement of molecules in and out of the cell


Pregunta 8

Pregunta
Golgi complex
Respuesta
  • protein sorting

  • protein modification
  • protein transport in vesicles
  • has its own genome

  • mRNA, tRNA synth
  • cell signalling

Pregunta 9

Pregunta
Cytoskeletal fibers
Respuesta
  • forms networks: microtubules, microfilaments, intermediate filaments

  • support membranes, organise organelles
  • important for cell movement
  • contain enzymes that degrade obsolete cellular components
  • controls movement of molecules in and out of the cell

  • has a double membrane

Pregunta 10

Pregunta
Chloroplast
Respuesta
  • has a double membrane
  • has its own genome

  • has internal membranes: thylakoids
  • rRNA processing
  • protein folding

Pregunta 11

Pregunta
Peroxisomes
Respuesta
  • convert H2O2 to H2O
  • contain enzymes that degrade obsolete cellular components
  • Ca2+ storage in cell
  • protein transport in vesicles

Pregunta 12

Pregunta
Label the image
Respuesta
  • Plasma membrane
  • DNA
  • cell wall
  • flagellum
  • ribosomes

Pregunta 13

Pregunta
Label the image
Respuesta
  • 20 mm
  • 4 mm
  • 0.2 mm
  • 30 um
  • 2 um
  • 0.2 um
  • 20 nm
  • 2 nm
  • 0.2 nm

Pregunta 14

Pregunta
The structure of a bacterium (prokaryote)
Respuesta
  • No internal compartmentalisation
  • Genome (DNA) lies freely in cell
  • 0.1-1 um in size
  • Organo-, photo, or litotrophic
  • 0.1-1 nm in size
  • Internal compartmentalisation
  • Packed DNA

Pregunta 15

Pregunta
Label the image
Respuesta
  • plasma membrane
  • nucleus
  • endoplasmic reticulum
  • mitochondrion
  • lysosome
  • peroxisome
  • ribosomes
  • mitochondria

Pregunta 16

Pregunta
Label the image
Respuesta
  • actin filaments
  • peroxisome
  • ribosome in cytosol
  • Golgi apparatus
  • Intermediate filaments
  • plasma membrane
  • nucleolus
  • nucleus
  • endoplasmic reticulum
  • mitochondrion
  • vesicles
  • extracellular matrix
  • nuclear envelope
  • nuclear pore
  • chromatin DNA
  • centrosome with pair of centrioles
  • microtubule

Pregunta 17

Pregunta
Label the image
Respuesta
  • nucleus
  • nucleolus
  • cytoplasm
  • cytosol
  • ER
  • Golgi apparatus
  • Mitochondria and chloroplasts
  • Lysosomes
  • Endosomes
  • Peroxisome

Pregunta 18

Pregunta
Exchange between different organelles and the outside of the cell is mediated by...
Respuesta
  • vesicles
  • endosomes
  • cytosol
  • Ca2+
  • Golgi complex

Pregunta 19

Pregunta
Label the image
Respuesta
  • absent
  • present
  • 1 um
  • 10-100 um
  • present
  • absent
  • 10-100 um
  • 1 um
  • Absent
  • present
  • present
  • absent
  • absent
  • present
  • present
  • absent
  • 1x10^6 to 5x10^6
  • 1.5x10^7 to 5x10^9
  • 1x10^6 to 5x10^6
  • 1.5x10^7 to 5x10^9
  • single circular DNA molecule
  • multiple linear DNA molecule
  • multiple linear DNA molecules
  • single circular DNA molecules

Pregunta 20

Pregunta
Label the image
Respuesta
  • bacteria
  • anaerobic ancestral eukaryote
  • archae
  • ancestral prokaryote
  • chloroplasts
  • mitochondria
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