BIO 151 Lecture Notes - Spindle Apparatus, Nuclear Membrane, Golgi Apparatus

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ameliaguzman751

16 Aug 2022

School

CUNY-College of Staten Island

Department

Biology

Course

BIO 151

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Document Summary

If there were no ribosomes, there would be no enzymes, hormones, membrane channels, cytoskeleton and other proteins synthesized within cells: upon death, active transport cannot occur because the mitochondria cannot synthesize. Chromatin: loosely called fibers containing protein and dna within nucleus. Mitochondrion: location of atp production for cellular energy. Ribosome: small rna-containing particles for the synthesis of proteins. Vesicle: membranous sac formed by the pinching off of pieces of plasma membrane. Nucleolus: dense body of rna and protein within the nucleus. Microtubule: part of the cytoskeleton involved in cellular movement. Endoplasmic reticulum: composed of membrane-bound canals for tubular transport throughout the cytoplasm. Cytoplasm: occupies space between plasma membrane and nucleus. Golgi apparatus (complex): flattened, membranous sacs that modify and package a secretion. Lysosome: membranous sac that contains digestive enzymes. Nuclear envelope: separates nuclear contents from cytoplasm. Examples of diffusion: a fresh potato is peeled, weighed and soaked in a strong salt solution.

Related Questions

1. Parts of the cell:

Answer the following questions pertaining to parts of the cell listed below:

Nucleus, Mitochondria, Golgi, Endoplasmic Reticulum, Lysosome, Plasma membrane, ribosome and peroxisome (10 points total)

a) Is it in both prokaryotes and eukaryotes?

b) Is it enclosed by a lipid membrane?

c) Does it contain DNA?

d) Is it involved in protein synthesis?

e) Does glycosylation occur here?

f) Does lipid biosynthesis occur here?

g) Does it have a role in phagocytosis?

h) Is it required for detoxification?

i) Is it a water storage organelle?

j) Is it involved in protein export? If so how?

lemondonkey187

29 Most proteins destined to enter the endoplasmic reticulum _________.

(a) are transported across the membrane after their synthesis is complete.

(b) are synthesized on free ribosomes in the cytosol.

(d) are keep binding to Signal recognition particle (SRP) while they are translated.

30 Which of the following choices reflects the appropriate order of locations through which a protein destined for the plasma membrane travels?

(a) lysosome â endosome â plasma membrane

(b) ER â lysosome â plasma membrane

(d) ER â Golgi â plasma membrane

31 Which of the following statements about vesicle budding from the Golgi is false?

(a) COPII can initiate vesicle budding on Golgi membrane.

(b) Some vesicles budded from Golgi membranes move towards ER.

(d) Clathrin molecules act at the cytosolic surface of the Golgi membrane.

32 Which of the following statements is false?

(a) The signal sequences on mitochondrial proteins are first bound to translocator on outer membrane after translation.

(b) Most mitochondrial proteins are not imported from the cytosol but are synthesized inside the mitochondria.

(c) Chaperone proteins in the mitochondria facilitate the movement of proteins across the outer and inner mitochondrial membranes.

(d) Mitochondrial proteins cross the membrane in their unfolded state.

orangeplatypus673

1) Where are proteins in the mitochondrion synthesized?

(a)in the cytosol

(b)in the mitochodrion

(c)on the endoplasmic reticulum

(d)in both the cytosol and the mitochondrion

2) Select the incorrect association between thecomponents involved with ER transport with the appropriate cellularlocation.

(a)SRP receptor/ ER membrane

(b)active site of signal peptidase/ cytosol

(c)Protein translocator / ER membrane

(d)signal-recognition particle/ cytosol

BIO 151 Lecture Notes - Spindle Apparatus, Nuclear Membrane, Golgi Apparatus

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