WorksheetsCh 6
Total questions: 35
Worksheet time: 18mins
Prokaryotes are classified as belonging to two different domains. What are the domains?
Bacteria and Eukarya
Archaea and Protista
Bacteria and Protista
Bacteria and Archaea
Bacteria and Fungi
Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules?
proteins
cellulose
lipids
glycogen
nucleic acids
Which structure is the site of the synthesis of proteins that may be exported from the cell?
peroxisome
lysosome
rough ER
mitochondria
Which of the following produces and modifies polysaccharides that will be secreted?
Golgi apparatus
peroxisome
vacuole
lysosome
Which organelle often takes up much of the volume of a plant cell?
mitochondrion
lysosome
peroxisome
vacuole
Which organelle is the primary site of ATP synthesis in eukaryotic cells?
peroxisome
vacuole
lysosome
mitochondria
Which plant cell organelle contains its own DNA and ribosomes?
Golgi apparatus
vacuole
mitochondrion
glyoxysome
Which animal cell organelle contains enzymes that transfer hydrogen from various substrates to oxygen?
vacuole
golgi apparatus
lysosome
peroxisome
Which type of organelle is found in plant cells but not in animal cells?
mitochondria
plastids
nuclei
ribosomes
none of these
The advantage of light microscopy over electron microscopy is that
light microscopy provides for higher magnification than electron microscopy.
light microscopy provides for lower magnification than electron microscopy.
light microscopy provides for higher resolving power than electron microscopy.
light microscopy allows one to view dynamic processes in living cells.
A primary objective of cell fractionation is to
identify the enzymes outside the organelles.
determine the size of various organelles.
view the structure of cell membranes.
separate the major organelles so that their particular functions can be determined.
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
the percentage of carbohydrates in the component.
the size and weight of the component.
the relative solubility of the component.
the presence or absence of lipids in the component.
What makes bacteria unique from other organisms?
carbohydrates
plasmids
DNA
phospholipid bilayer
Which of the following contains its own DNA and ribosomes?
lysosome
mitochondrion
peroxisome
vacuole
Which of the following is true of integral membrane proteins?
They are loosely bound to the surface of the bilayer.
They are usually transmembrane proteins.
They serve only a structural role in membranes.
They lack tertiary structure.
Which of these are not embedded in the lipid bilayer at all?
glycoproteins
integrins
peripheral proteins
transmembrane proteins
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?
the inability of the cell to withstand enzymatic digestion
a change in the shape of the nucleus
the loss of all nuclear function
failure of chromosomes to carry genetic information
Which type of organelle is primarily involved in the synthesis of oils, phospholipids, and steroids?
ribosome
rough ER
mitochondrion
smooth ER
In animal cells, hydrolytic enzymes are packaged to prevent general destruction of cellular components. Which of the following organelles functions in this compartmentalization?
lysosome
chloroplast
glyoxysome
central vacuole
Which of the following is a compartment that often takes up much of the volume of a plant cell?
peroxisome
lysosome
centrosome
vacuole
Grana, thylakoids, and stroma are all components found in
nucleus
plasmid
chloroplast
Golgi apparatus
What is cell wall made of?
cellulose, hemicellulose, chitin
cellulose, glycogen, lignin
cellulose, hemicellulose, lignin
cellulose, microtubules, lignin
What allows cell-to-cell communication?
plasma membrane
plasmodesmata
microtubules
chloroplast
Which structure is not part of the endomembrane system?
chloroplast
nuclear envelope
ER
plasma membrane
RNA cannot leave the nucleus without
lipids and proteins
ribosomes
post transcription modifications
translation
RNA leaves the nucleus through what structure?
nucleolus
ribosome
lysosome
nuclear pore
What does the nucleolus contain?
secretions
microtubules
glycoproteins
ribosomal RNA and proteins
What are the properties of a plasma membrane?
has a cell wall and double lipid bilayer
selectively permeable, fluid in nature, made of carbs, lipids, and proteins
present is a prokaryotic cell
contains a plasmid
What organelle assists in the removal of drug toxins?
Ribosomes
Nucleus
Golgi apparatus
Endoplasmic reticulum
Which structure within a chloroplast does the photo dependent reaction take place?
cytoplasm
stroma
grana
thylakoids
Which structure within a chloroplast does the synthesis reactions take place?
thylakoid
stroma
cytoplasm
grana
Without which two components can a reaction not take place?
light
electron carriers
energy and enzymes
NADPH
What does the folding of the cristae allow?
increased surface area for chemical energy conversions
decreased surface area for mechanical energy conversions
increased surface area for mechanical energy conversions
decreased surface area for chemical energy conversions
What does the central vacuole hold?
water and inorganic compounds
organic compounds and salts
inorganic compounds and salts
organic compounds and water
What is aerobic respiration?
process by which organisms use oxygen for energy conversions
process by which organisms do not use oxygen for energy conversions
process by which organisms can or cannot use oxygen for energy conversions
