Test
L7 The Endomembrane System
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (8)
1Which statement about the smooth endoplasmic reticulum is INCORRECT?
- AThe sER metabolises carbohydrates.
- BThe sER synthesizes lipids.
- CThe sER detoxifies drugs and poisons (non-nutritional chemicals).
- DThe sER stores calcium.
- EThe sER synthesizes proteins.
2The amount of sER can increase or decrease according to a cell's demands.
- AVerdadero
- BFalso
3The rough endoplasmic reticulum contains [blank_start]ribosomes[blank_end], and is the site of most [blank_start]protein[blank_end] synthesis. It also stores protein in the lumen, its [blank_start]interior[blank_end].
- Aribosomes
- Bnucleic acid
- Cprotein
- Dlipid
- Einterior
- Fexterior
4Synthesis of cytoplasmic proteins occurs in the rER.
- AVerdadero
- BFalso
5Which statement about the Golgi is NOT correct?
- AThe Golgi has polarity, and is responsible for processing proteins from the rER.
- BThe Golgi glycosolates proteins (adds sugars) and modifies simple carbohydrates to make complex carbohydrates.
- CVesicles tagged for the plasma membrane exit the trans side of the Golgi.
- DProteins destined to return to the rER to maintain its structure leave the Golgi in vesicles via the cis face.
6The Golgi tags proteins so they are directed to the proper vesicle, and then tags those vesicles to direct them to the correct target compartment.
- AVerdadero
- BFalso
7There are two pathways from the Golgi out of the cell. These [blank_start]exocytosis[blank_end] pathways can be continuous and unregulated, or "[blank_start]Constitutive[blank_end]" pathways (e.g. proteins transported to the ECM) or they can be "[blank_start]Regulated[blank_end]" pathways, for example the release of [blank_start]hormones[blank_end].
- Aexocytosis
- BConstitutive
- CRegulated
- Dhormones
8[blank_start]Phagocytosi[blank_end]s is a type of endocytosis which is selective, and uptakes "food" to "eat". [blank_start]Pinocytosis[blank_end] however is the non-selective uptake of solutes. Endocytosis can also uptake [blank_start]very specific[blank_end] molecules via [blank_start]receptor mediated[blank_end] endocytosis.
All of these pathways join their vesicles with [blank_start]lysosomes[blank_end] for digestion.- APhagocytosis
- BPinocytosis
- Cvery specific
- Dreceptor mediated
- Elysosomes
Información
- Descripción
- Objectives: • Define what is meant by the endomembrane system • Describe the function of the endomembrane system • Outline the process of exocytosis and endocytosis
- Autor
- Mer Scott
- Idioma
- English
- Visitas
- 515
- Etiquetas
- Valoración
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