chapter 4 cells
The folds in the inner membrane of mitochondria are called
cristae
bacteria sometimes called blue-green algae which are photosynthetic are called
cyanobacteria
The internal flame work of the cell, consisting of microtubules, actin filiments, and intermediate filaments is called the
cytoplasm
Which of the following products is produced in the nucleolous
ribosomal RNA
The cell structure that is composed of rRNA and protien and is the site of protien synthesis is the
ribosome
which cell structure is common to both prokaryotes and eukaryotes
ribosome
The__________ endoplasmic reticulum is studded with robosomes, and thus functions in the production or protiens
rough
The three basic tentets of the cell theory state that:
Cells only come from preexisting cells Cells are the basic unit of structure and function all organisms are composed of cells
chloroplast
Convert solar energy, carbon dioxide and water into carbohydrate and oxygen
A highly condensed sequence of DNA that is a carrier of genetic information is called
A chromosome
identify the structures and organelles of a typical prokaryotic cell:
A.ribosome B.flagella C.plasma membrane D.cell wall
identify the shape of these bacteria
A.spirillum B.spirochete C.coccus Dbacillus
which of the following is produced by mitochondria during cellular respiration
ATP
the central dogma of molecular biology describes the flow of genetic information as:
DNA-mRNA-protien
List the sequence of events that may occur within the endomembrane system in the correct order as they would occur with the first event placed at the top:
1.rough ER synthesizes protien 2.protien packed into transport vesicle 3.Golgi apparatus modifies, sorts and packages protien into secretory vesicle 4.secretory vesicle fuses with the plasma membrane
Identify the structures and organelles of a typical prokayotic cell
A.capsule B.Nucleoid C.Fimbriae
identify the following plant cell organelles
A.nucleous B.chromatin C.Nuclear Pore D.centrosome E.Rough ER
identify the organelles shown
A.nucleus B.Nuclolous C.Rough ER DSmooth ER E.Polyribosome
which group contains organisms with cell envelopes
Bacteria
The smallest unit of life which is composed of cytoplasm surrounded by a plasma membrane?
Cell
Mitochondira
Convert carbohydrates and oxygen into carbon dioxide, water and ATP
Select the components of the endomembrane system
Golgi apparatus vesicles nuclear envelope endoplasmic reticulum
Which organelle plays a role in breaking down food particles that are ingested by the cell?
Lysosome
The membrane-bound organelle within a eukaryotic cell that contains the genetic material is called the:
Nucleus
internal membrane-bound compartments located in the cytoplasm of eukaryotic cells are called
Organelles
the cell structure that regulates the flow of materials in and out of the cell is called the___________membrane
Plasma
The cytoplasm is best described as:
The semifluid solution composed of water, organic and inorganic molecules inside the plasma membrane
which cell size is the most efficiant at exchanging materials with the environments
a small cell
The thinnest protien fibers of the cytoskeleton
actin filaments
A well organized glycocalyx that is not easily removed is called a
capsule
The organelle shown here that functions to organize the microtubules of flagella and cilia as well as the mitotic spindle
centriole
plastids which contain pigments that result in the red, yellow and orange colors repsonsible for the color of autumn leaves are called
chromoplasts
Select the functions of the smooth endoplasmic reticulum
detoxification production of lipids
which theory explains how eukaryotic cells evoloved to include membrane bound organelles
endosymbiotic theory
true or false the cell wall structure is identical in both plant cells and bacterial cells
false
match each bacterial appendage with its function
flagella-Protein extension used for locomotion Fimbraie-Small bristle like fibers used to adhere to surfaces conjugation pilus-tubular structures used to pass DNA between cells
The locomotor organelle found on human sperm cells is called a
flagellum
The cytoskelton filament that functions to support the nuclear envelope and plasma membrane
intermediate filament
select the two choices that relate to prokaryotes when comparing them to eukaryotes
less complex and smaller
The small ,hollow, cylinder composed of a globular tubulin protien
microtubule
The energy related organelle shown here is called the
mitochondria
An opening in the nuclear envelope that allows molecules to move in and out of the nucleus is called a
nuclear pore
The DNA in a prokaryote is found in the
nucleoid
liver and kidney cells filter and destroy many toxins. As a result they contain high numbers of which type of organelle that is responsible for breaking down fatty acids
peroxisomes
identify the main componets of the cell envelope
plasma membrane glycocalyx cell wall
A small extrachromosomal piece of circular DNA found in some bacteria is called a
plasmid
A small extrachromosomal piece of circular dna found in some bacteria is called a
plasmid
identify the roles that vacuoles play in plant cells
store toxins store water store salts
in a chlorplast,chlorphyll is located in the________ membrane
thylakoid
The dislike sacs formed from the third chlorplasts membrane are called the
thylakoids
The Golgi apparatus packages materials into membranous organelles called
vesicles
identify the functions of the central vacuole in plants
Provides support for the cell maintains turgor pressure
