6

Front 1

When biologists wish to study the internal ultrastructure of cells, they most likely would use

Back 1

a transmission electronic microscope

Front 2

the advantage of light microscopy over electron microscopy is that

Back 2

light microscopy allows one to view dynamic processes in living cells

Front 3

in the fractionation of homogenized cells using centrifugation, the primary factor that determines whether a specific cellular component ends up in the supernatant or the pellet is

Back 3

the size and weight of carbs in the component

Front 4

all of the following are part of a prokaryotic cell EXCEPT

Back 4

an endoplasmic reticulum

Front 5

the volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells the most reasonable explanation for this observation is that

Back 5

plant cells contain a large vacuole that reduces the volume of the cytoplasm

Front 6

which of the following is a major cause of size limits for certain types of cells?

Back 6

the need for surface area of sufficient area to allow the cell's function

Front 7

large numbers of ribosomes are present in cells that specialize in producing which of the following molecules?

Back 7

proteins

Front 8

the nuclear lamina is an array of filaments on the inner side of the nuclear membrane. if a method were found that could cause the lamina to fall into disarray, what would you expect to be the most likely consequence?

Back 8

a change in the shape of the nucleus

Front 9

under which of the following conditions would you expects to find a cell with a predominanance of free ribosomes?

Back 9

a cell that is producing cytoplasmic enzymes

Front 10

which type of organelle is primarily involved in the synthesis of oils, phospholipids, and steroids?

Back 10

smooth er

Front 11

which structure is the site of the synthesis of proteins that may be exported from the cell?

Back 11

rough er

Front 12

the golgi apparatus has a polarity or sidedness to its structure and function. which of the following statements correctly describes its polarity?

Back 12

all of the above
#12 chapter 6--dont think its that important and way too much to write them all out just know its all of the above

Front 13

in the animal cells hydrolytic enzymes are packaged to prevent general destruction of cellular components. which of the following organelles functions in this compartmentalization?

Back 13

lysosome

Front 14

tay sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large and complex lipids. which cellular organelle must be involved in this condition?

Back 14

lysosome

Front 15

the liver is involved in the detoxification of many poisons and drugs. which of the following structures is primarily involved in this process and therefore abundant in liver cells?

Back 15

smooth er

Front 16

which of the following contains hydrolytic enzymes?

Back 16

lysosomes

Front 17

which is one of the main energy transformers of cells?

Back 17

mitochondrion

Front 18

which of the following contains enzymes that transfer hydrogen from various substrates to oxygen?

Back 18

peroxisome

Front 19

the chemical reactions involved in respiration are virtually identical between prokaryotic and eukaryotic cells. in eukaryotic cells, ATP is synthesized primarily on the inner membrane of the mitochondria. where are the corresponding reactions likely to occur in prokaryotic respiration?

Back 19

on the inner plasma membrane

Front 20

a cell has the following molecules and structures: enzymes, DNA, plasma membrane, and mitochondria. it could be a cell from

Back 20

a plant or an animal

Front 21

the peroxisome gets its name from its interaction with hydrogen peroxide. if a liver cell is detoxigying alcohol and some other poisons, it does so by removal of hydrogen from the molecules. what then do the enzymes of the peroxisome do?

Back 21

transfer the hydrogens to oxygen molecules

Front 22

motor proteins provide for molecular motion in cells by interacting with what types of cellular structures?

Back 22

cytoskeletons

Front 23

cells can be described as having a cytoskeleton of internal structures that contribute to the shape, organization, and the movement of the cell.which of the following are part of the cytoskeleton?

Back 23

microfilaments

Front 24

of the following which cell structure would most likely be visible with a light microscope that has been manufactered to the maximum resolving power possible?

Back 24

mitochondrion

Front 25

which of the following contain the 9 + 2 arrangement of microtubules?

Back 25

cilia and flagella (a and c only)

Front 26

microfilaments are well known for their role in which of the following?

Back 26

ameboid movement, formation of cleavage furrows, contracting of muscle cells (a,b, and c)

Front 27

which of the following possess a microtubular structure similiar to a basal body?

Back 27

centriole

Front 28

cells require which of the following to form a cilia or flagella?

Back 28

centrosomes and ribosomes (a and b)

Front 29

which of the following relationships between cell structures and their respective functions is correct?

Back 29

cell wall: support and protection

Front 30

a cell lacking the ability to make and secrete glycoproteins would most likely be deficient in its

Back 30

Extracellular matrix and golgi apparatus (b and c only)

Front 31

ions can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent cell through

Back 31

gap junctions

Front 32

which statement correctly characterizes bound ribosomes

Back 32

bound ribosomes generally synthesize membrane proteins and secretory proteins

Front 33

which structure is not part of the endomembrane system?

Back 33

chloroplast

Front 34

cells of the pancreas will incorporate labeled amino acids into proteins. this "tagging" of newly synthesized proteins enables a researcher to track their location. in this case we are tracking an enzyme secreted by pancreatic cells. what is its most likely pathway?

Back 34

ER-->golgi-->vesicles that fuse with plasma membrane

Front 35

which structure is common to plant and animal cells?

Back 35

mitochondrion

Front 36

which of the following is present in a prokaryotic cell?

Back 36

ribosome

Front 37

which cell would be best for studying lysosomes?

Back 37

phagocytic white blood cell

Front 38

which structure-function pair is mismatched?

Back 38

mictrotubule;muscle contraction