Which of the following correctly matches an organelle with its function?
central vacuole ... storage
When biologists wish to study the internal ultrastructure of cells, they can achieve the finest resolution by using a
transmission electronic microscope.
One advantage of light microscopy over transmission electron microscopy is that
light microscopy allows one to view dynamic processes in living cells.
Which of the following may be found in eukaryotic cells, but not in bacteria?
endoplasmic reticulum
plant cell only
cellulose cell wall, chloroplast, central vacuole
animal cell only
centriole
Both plant and animal cells
-vacuoles
-nucleus
-cytoskeleton
-endoplasmic reticulum
-flagella
-golgi apparatus
-lysosomes
-mitochondria
-plasma membrane
-ribosomes
-cytoplasm
plant cell wall
strong, protective structure made from cellulose fibrils
central vacuole
regulates cytoplasm composition, creates internal pressure, and stores cell compounds
Chloroplast
makes sugars by converting light energy into chemical energy
Mitochondria
Powerhouse of the cell, organelle that is the site of ATP (energy) production
Golgi apparatus
Modifies, sorts, and packages proteins
true about chloroplast
-They contain the green pigment chlorophyll.
-They are the sites of reactions that convert solar energy into chemical energy.
-They have membranous sacs called thylakoids that are surrounded by a fluid called stroma
Which statement correctly describes the nuclear envelope of a eukaryotic cell?
The nuclear envelope is continuous with the endoplasmic reticulum.
Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules?
proteins
Which organelle plays a role in intracellular digestion?
lysosomes
The liver is involved in detoxification of many poisons and drugs. Which of the following structures is primarily involved in this process and therefore abundant in liver cells?
smooth ER
Proteins that will be secreted from the cell are likely to be found in closed spaces bounded by membranes of the endomembrane system.
endomembrane system
Which type of organelle or structure is primarily involved in the synthesis of oils, phospholipids, and steroids?
smooth endoplasmic reticulum
Which of the following statements correctly describes a function of the Golgi apparatus?
protein modification and sorting
Tay-Sachs disease is a human genetic abnormality that results in cells accumulating very large, complex, undigested lipids. Which cellular organelle must be defective in this condition?
the lysosome
The cilia and flagella of eukaryotic cells are composed of _____.
microtubules
Which of the following is a correct match between a cytoskeletal element and its function?
microtubules and chromosome movement
Which of these cell junctions form a barrier to the passage of materials?
tight junctions
The primary role of _____ is to bind animal cells together.
desmosomes
_____ aid in the coordination of the activities of adjacent animal cells.
Gap (communicating) junctions
Which structure is NOT part of the endomembrane system?
chloroplast
Which structure is common to plant and animal cells?
mitochondrion
Which of the following is present in a prokaryotic cell?
ribosome
Which structure-function pair is MISMATCHED?
microtubule; muscle contraction
Which statement correctly describes an endomembrane function?
Products of the ER are usually modified during their transit from the cis to the trans region of the Golgi apparatus.
Select the correct statement describing cellular structure or function
Plant and animal cells both carry out cellular respiration, producing ATP.
Which plant cell organelle contains its own DNA and ribosomes?
mitochondrion
What types of proteins are synthesized somewhere other than the rough ER?
mitochondrial proteins
A double membrane encloses which of the following organelles?
nuclei and chloroplasts
Motor proteins provide for molecular transport of materials in cells by interacting with what types of cellular structures?
cytoskeletal structures
Intermediate filaments attach to which of the following structures in the plasma membrane?
desmosomes
Which of the following makes it necessary for animal cells, although they have no cell walls, to have intercellular junctions?
Maintenance of tissue integrity and barriers to fluid leakage requires cells to adhere tightly to one another.
What is the most likely pathway taken by a newly synthesized protein that will be secreted by a cell?
ER ? Golgi ? vesicles that fuse with plasma membrane