AP Ch 3 Flashcards
Peroxisomes ________.
a.
re able to detoxify substances by enzymatic action
Mitosis ________.
produces nucleus replication
Which of the following would not be a constituent of a plasma membrane?
A messenger RNA
In certain kinds of muscle cells, calcium ions are stored in ________.
the smooth ER
Extracellular matrix is ________.
the most abundant extracellular material
The endomembrane system is ________.
an interactive system of organelles whose membranes are physically or functionally connected
Enzymes called _________ destroy the cell’s DNA and cytoskeleton, producing a quick death of the cell.
caspases
If a tRNA had an AGC anticodon, it could attach to a(n) ________ mRNA codon
UCG
Which statement best describes transcytosis?
transporting an endosome from one side of a cell to the other and releasing the contents by exocytosis
Mitochondria ________.
contain some of the DNA and RNA code necessary for their own function
The functions of centrioles include ________.
organizing the mitotic spindle in cell division
Which of the following describes the plasma membrane?
the phospholipid bilayer surrounding the cell
The electron microscope has revealed that one of the components within the cell consists of microtubules arranged to form a hollow tube. This structure is a ________.
centriole
Which of the following statements is correct regarding RNA?
Messenger RNA, transfer RNA, and ribosomal RNA play a role in protein synthesis.
A gene can best be defined as ________.
a segment of DNA that carries the instructions for one polypeptide chain
