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