Question

true or false: Penicillin, ampicillin, and bacitracin work by disrupting the synthesis of ribosomes
True or false: drugs that disable or kill infectious bacteria are called…

Which one of the following about cells is TRUE
A. The magnification of a transmission electron microscope is about 10 times greater than the typical light microscope
B. Organelles are small parts of cells with specific functions
C. Cell theory states that all living things have a well-defined nucleus bordered by s membranous envelope
D. The genetic material of eukaryotic cells is housed in the endoplasmic reticulu

Answer 1

Which of the following organelles is physically connected to the nucleus?
A.Mitochondria
B.Golgi apparatus
C.rough and smooth endoplasmic reticulum
D.lysosomes
E.plasma membrane

Which one of the following statements about prokaryotic and eukaryotic cells s FALSE
a. only eukaryotic cells have several membrane-enclosed organelles
b.prokaryotic cells are older
c.eukaryotic cells are smaller
d.eukaryotic cells divide the labor of life among many internal compartments
e.only eukaryotic cells have membrane-enclosed organelles

Answer 2

True or false for the following: bacteria and archaea are prokaryotic cells
cell surfaces are best revealed by an …… electron microscope
a nucleus bordered by a membranous envelope is found in ….cells, but not in … cells

Which one of the following statements about cellular membranes is false
a. membrane molecules can move freely past one another
b.most membranes have carbohydrates embedded in the phospholipid bilayer
c. proteins float like icebergs in the phospholipid sea
D. membranes of a cell are composed mostly of lipids and proteins
e.phopholipids in the membrane form a bilayer

Answer 3

T or F for the following:
the plasma membrane and other membranes of the cell are selectively permeable
the phospholipids and most of the proteins in a membrane are free to drift about in what is called…..

which one of the following statements about the nucleus and ribosomes is FALSE:
a.chromosomes are composed of long stands of DNA attached to certain proteins
b.pores in the nuclear envelope allow messenger RNA to move from the nucleus to the cytoplasm
c.ribosomes are contracted in the cytoplasm from parts produced in the nucleolus
d. DNA moves from the nucleus to the cytoplasm to direct the production of proteins
e.ribosomes may either work suspended in the cytosol or attached to the endoplasmic reticulum

If we think of the cell as a factory; then the nucleus is its executive boardroom and the top managers are the:
a.genes
b.ribosomes
c.chromosomes
d.mitochondria
e.endoplasmic reticulum

T or F for the following:
the directions to make a protein move from DNA to messenger RNA and then to ribsomes .
proteins are made on ribosomes in the cytoplasm using the directions from a ……(what) molecule

which one of the following statements about the components of the endomembrane system is FAlSE:
a.products from the endoplasmic reticulum are modified in the Golgi apparatus
b.lysosomes have several types of digestive functions
c.lipids are typically produced by the rough endoplasmic reticulum
d.central vacuoles contributed to plant growth and may contain pigments and poisons
e.the smooth endoplasmic reticulum helps detoxify poisons

which one of the following sequences best represents the steps an enzyme would take from initial production to joining with a food vacuole?
a.rough endoplasmic reticulum, golgi apparatus, lysosome
b.golgi apparatus, rough endoplasmic reticulum, lysosome
c.lysosome, smooth endoplasmic reticulum, golgi apparatus
d.smooth endoplasmic reticulum, golgi apparatus, lysosome

true or false: the final destination of proteins in the cell is determined by chemical tags applied by the rough endoplasmic reticulum

cellular products produced in the endoplasmic reticulum are next modified and packaged within transport vesicles in the …….

found in animal cells but absent from most plant cells, …….. are membrane-bounded sacs of digestive enzymes

in a plant cell, where is light energy trapped and converted to chemical energy?
a.the inner mitochondrial membrane
b.the outer mitochondrial membrane
c.the outer chloroplast membrane
d.the inner chloroplast membrane
e.the grana in the chloroplast

which of the following pairs of structures are the largest membranes in chloroplasts and mitochondria?
a.outer chloroplast membrane; outer mitochondrial membrane
b.inner chloroplast membrane; outer mitochondrial membrane
c.outer chloroplast membrane; inner mitochondrial membrane
d.the grand of chloroplasts; the outer mitochondrial membrane
e.the grand of chloroplasts; the inner mitochondrial membrane

true or false: plant cells have chloroplasts and mitochondria

cells use molecules of ….. as the direct energy source for most of their work

which one, if any, of the following is NOT a function of the cytoskeleton
a.give mechanical support of the cell
b.anchor organelles
c.help a cell maintain its shape
d.help a cell move
e.all of the above are functions of the cytoskeleton

which one of the following statements about cilia and flagella is FALSE
a. cilia are generally shorter than flagella
b.cilia are more numerous than flagella
c.cilia and flagella have the same basic architecture
d.flagella line the inside of your windpipe
e.human sperm rely n flagella for movement

True or false: a specialized arrangement of microfilaments helps move cilia and flagella

the movement of dividing chromosomes s guided by ……………


which of the following statements about plant cell walls is false? they are…..
a.generally regarded as the boundary of the living cell
b.do not occur around animal cells
c.help maintain the shape of plant cells
d.provides strength and flexibility to plants
e.are composed of cellulose fibers in a matrix of other molecules

what part of a house functions most like plasmodesmata
a. an outside window
b.a door between rooms
c.the air ducts coming from the furnace
d.a wall between rooms
e. the plumbing system

Steel-reinforced concrete is most like which one of the following?
a. a plasma membrane
b.a plant cell wall
c. a nuclear membrane
d.a lysosome
e.a mitochondrion

True or false? Plasmodesmata are channels that connect the cytoplasm of adjacent animal cells.

Instead of a cell wall, animal cells are surrounded by an ……..

Channels that allow water and other small molecules to flow between neighboring cells are called ……. junctions

cells are bound together tightly by …….. junctions

cells are attached together with fibers in ……… junctions, but materials are still allowed to pass along the spaces between the cells

The first cell membranes allowed cells to….
a.regulate their chemical exchanges with the environment
b.form an impermeable barrier between the inside and outside of the cell
c.use photosynthesis
d. reproduce
e. make ATP

True or false?: Phosspholipids require no genetic information to assemble into membranes.

The main lipids in the earliest cell membranes were probably ……….
True or false for the following: bacteria and archaea are prokaryotic cells
cell surfaces are best revealed by an …… electron microscope
a nucleus bordered by a membranous envelope is found in ….cells, but not in … cells

Which one of the following statements about cellular membranes is false
a. membrane molecules can move freely past one another
b.most membranes have carbohydrates embedded in the phospholipid bilayer
c. proteins float like icebergs in the phospholipid sea
D. membranes of a cell are composed mostly of lipids and proteins
e.phopholipids in the membrane form a bilayer

T or F for the following:
the plasma membrane and other membranes of the cell are selectively permeable
the phospholipids and most of the proteins in a membrane are free to drift about in what is called…..

which one of the following statements about the nucleus and ribosomes is FALSE:
a.chromosomes are composed of long stands of DNA attached to certain proteins
b.pores in the nuclear envelope allow messenger RNA to move from the nucleus to the cytoplasm
c.ribosomes are contracted in the cytoplasm from parts produced in the nucleolus
d. DNA moves from the nucleus to the cytoplasm to direct the production of proteins
e.ribosomes may either work suspended in the cytosol or attached to the endoplasmic reticulum

If we think of the cell as a factory; then the nucleus is its executive boardroom and the top managers are the:
a.genes
b.ribosomes
c.chromosomes
d.mitochondria
e.endoplasmic reticulum

T or F for the following:
the directions to make a protein move from DNA to messenger RNA and then to ribsomes .
proteins are made on ribosomes in the cytoplasm using the directions from a ……(what) molecule

which one of the following statements about the components of the endomembrane system is FAlSE:
a.products from the endoplasmic reticulum are modified in the Golgi apparatus
b.lysosomes have several types of digestive functions
c.lipids are typically produced by the rough endoplasmic reticulum
d.central vacuoles contributed to plant growth and may contain pigments and poisons
e.the smooth endoplasmic reticulum helps detoxify poisons

which one of the following sequences best represents the steps an enzyme would take from initial production to joining with a food vacuole?
a.rough endoplasmic reticulum, golgi apparatus, lysosome
b.golgi apparatus, rough endoplasmic reticulum, lysosome
c.lysosome, smooth endoplasmic reticulum, golgi apparatus
d.smooth endoplasmic reticulum, golgi apparatus, lysosome

true or false: the final destination of proteins in the cell is determined by chemical tags applied by the rough endoplasmic reticulum

cellular products produced in the endoplasmic reticulum are next modified and packaged within transport vesicles in the …….

found in animal cells but absent from most plant cells, …….. are membrane-bounded sacs of digestive enzymes

in a plant cell, where is light energy trapped and converted to chemical energy?
a.the inner mitochondrial membrane
b.the outer mitochondrial membrane
c.the outer chloroplast membrane
d.the inner chloroplast membrane
e.the grana in the chloroplast

which of the following pairs of structures are the largest membranes in chloroplasts and mitochondria?
a.outer chloroplast membrane; outer mitochondrial membrane
b.inner chloroplast membrane; outer mitochondrial membrane
c.outer chloroplast membrane; inner mitochondrial membrane
d.the grand of chloroplasts; the outer mitochondrial membrane
e.the grand of chloroplasts; the inner mitochondrial membrane

true or false: plant cells have chloroplasts and mitochondria

cells use molecules of ….. as the direct energy source for most of their work

which one, if any, of the following is NOT a function of the cytoskeleton
a.give mechanical support of the cell
b.anchor organelles
c.help a cell maintain its shape
d.help a cell move
e.all of the above are functions of the cytoskeleton

which one of the following statements about cilia and flagella is FALSE
a. cilia are generally shorter than flagella
b.cilia are more numerous than flagella
c.cilia and flagella have the same basic architecture
d.flagella line the inside of your windpipe
e.human sperm rely n flagella for movement

True or false: a specialized arrangement of microfilaments helps move cilia and flagella

the movement of dividing chromosomes s guided by ……………


which of the following statements about plant cell walls is false? they are…..
a.generally regarded as the boundary of the living cell
b.do not occur around animal cells
c.help maintain the shape of plant cells
d.provides strength and flexibility to plants
e.are composed of cellulose fibers in a matrix of other molecules

what part of a house functions most like plasmodesmata
a. an outside window
b.a door between rooms
c.the air ducts coming from the furnace
d.a wall between rooms
e. the plumbing system

Steel-reinforced concrete is most like which one of the following?
a. a plasma membrane
b.a plant cell wall
c. a nuclear membrane
d.a lysosome
e.a mitochondrion

True or false? Plasmodesmata are channels that connect the cytoplasm of adjacent animal cells.

Instead of a cell wall, animal cells are surrounded by an ……..

Channels that allow water and other small molecules to flow between neighboring cells are called ……. junctions

cells are bound together tightly by …….. junctions

cells are attached together with fibers in ……… junctions, but materials are still allowed to pass along the spaces between the cells

The first cell membranes allowed cells to….
a.regulate their chemical exchanges with the environment
b.form an impermeable barrier between the inside and outside of the cell
c.use photosynthesis
d. reproduce
e. make ATP

True or false?: Phosspholipids require no genetic information to assemble into membranes.

The main lipids in the earliest cell membranes were probably ……….

Answer 4

i understand there are a lot of questions, however i have a huge math test tomorrow tomorrow and i need to spend my time on that since i have B- in that class and am a straight A student

Answer 5

so thats my first B and i have to bring it back to an A