BIOL 215 Lecture 4

Rough endoplasmic reticulum

________: large flattened membrane sheets that temporarily house ribosomes.

Nucleoid region

________: the area in the cytoplasm of prokaryotes where the DNA is located.

Nucleolus

________: clustered regions of genes for rRNA surrounded by specific RNAs and proteins.

Cytosol

________: gel- like semifluid material inside cells that suspends the particles inside the cell.

plasma membrane

The ________ is 4- 8 nm thick.

Adhesion

________ to the surrounding medium.

synthesis

Some antibiotics interfere with the ________ of peptidoglycan to kill bacteria.

Organelles

________: membrane- bound subcellular structures with specific functions in eukaryotes.

phospholipids

It is made of ________ and proteins.

Pseudomurein

________: a polymer made of chains of NAT (N- acetyltalosaminuronic acid) and NAG (N- acetylglucosamine) that are cross- linked together by peptide chains.

Gram negative bacteria

________ have an outer membrane and then a thin layer of peptidoglycan around their plasma membrane.

Cells

________ are stained with a purple dye.

Ribosomes

________ are responsible for protein synthesis.

cytoplasm

The ________ consists of the cytosol and subcellular structures.

Gram positive bacteria

________ have a thick layer of peptidoglycan.

Extracellular matrix

________: a fibrous network outside of the cell that the cell is tethered to.

Ribonucleoprotein complex

________: any particle made out of RNA and proteins.

movement of particles

Regulating the ________ in and out of a cell.

Nuclear envelope

________: a double- layered membrane that surrounds the nucleus.

Sedimentation coefficient

________: measures how rapidly a particle sediments under the centrifugal force.

Gram stain

________: a technique used to identify bacteria based on characteristics of their cell wall.

Nuclear pores

________: regulated openings through the nuclear envelope that control the movement of substances in and out of the nucleus.

organelles

The cytoplasm consists of cytosol, ________, and other subcellular structures.

Sedimentation coefficient

measures how rapidly a particle sediments under the centrifugal force

Cytosol

gel-like semifluid material inside cells that suspends the particles inside the cell

Ribonucleoprotein complex

any particle made out of RNA and proteins

Nucleoid region

the area in the cytoplasm of prokaryotes where the DNA is located

Peptidoglycan

a polymer made of chains of NAM (N-acetylmuramic acid) and NAG (N-acetylglucosamine) that are cross-linked together by peptide chains

Pseudomurein

a polymer made of chains of NAT (N-acetyltalosaminuronic acid) and NAG (N-acetylglucosamine) that are cross-linked together by peptide chains

Organelles

membrane-bound subcellular structures with specific functions in eukaryotes

Extracellular matrix

a fibrous network outside of the cell that the cell is tethered to

Nuclear envelope

a double-layered membrane that surrounds the nucleus

Nuclear lamina

a network of intermediate filaments beneath the inner layer of the nuclear envelope

Nuclear pores

regulated openings through the nuclear envelope that control the movement of substances in and out of the nucleus

Nucleolus

clustered regions of genes for rRNA surrounded by specific RNAs and proteins

Rough endoplasmic reticulum

large flattened membrane sheets that temporarily house ribosomes

Cis Golgi network

the side of the Golgi apparatus closer to the endoplasmic reticulum

Trans Golgi network

the side of the Golgi apparatus closer to the plasma membrane

Gram stain

a technique used to identify bacteria based on characteristics of their cell wall