1st STT - Gen bio : Module 5 Flashcards
The components of the ribosome are distinguished by?
Size
What is a centrosome?
An organelle made up of two centrioles and microtubules
Which of the following is the function of the large subunit?
a. To make RNA
c. To make new bonds
b. To make organelles
d. To protect the ribosome
To make new bonds
Which of the following processes is the cytoskeleton involved?
I. Contractile ring formed during cytokinesis
II. Anchoring the extracellular matrix
III. Post-translational modifications of proteins
IV. Post-transcriptional modification of mRNA
I and II
Which of the following statements is TRUE about the importance of non-membranous organelles
a. To make RNA
c. To make new bonds
b. To make organelles
d. To protect the ribosome
Requires less energy to perform specific function.
A centriole is an organelle that is ___.
composed of microtubules and important for organizing spindle fibers.
Where can you find ribosomes?
both prokaryotic and eukaryotic
Which of the following is TRUE of non-membrane-bound organelles?
a. Since they are so small, they do not need a plasma membrane
b. Since they do not have fluid interiors, they do not need a plasma membrane
c. Since they are all so similar to each other, they do not need a plasma
membrane
d. All of these are true.
Since they do not have fluid interiors, they do not need a plasma membrane
Chromosome movement in mitosis and meiosis is regulated by ___.
microtubules
Is compartmentalizing all organelles beneficial to the cell?
no
strands of RNA that contains instructions on
how to create proteins
Messenger
region near the nucleus
CENTROSOME
floating or attached to ER
Ribosomes
an overlapping array of actin/myosin
proteins
Contractile Ring
protein strands in centrioles
Microtubules
Modified True or False: In prokaryotes, the ribosomal protein reaches the nucleus and is
processed to form a large and small ribosome sub unit along with the rRNA strands.
Underlined Word: Prokaryotes
F - Eukaryotes
Modified True or False: In the cytoplasm, ribosomes can be found floating or attached to the
endoplasmic reticulum.
Underlined Word: Cytoplasm
True
Modified True or False: Each cell has a pair of centrioles in the centromere, a region near the
nucleus.
Underlined Word: Centromere
F - Centrosome
Modified True or False: The absence of centrioles causes divisional errors and delays in the
mitotic process.
Underlined Word: Centrioles
True
Modified True or False: Centrioles are responsible for chromosome movement during cell
division and cytokinesis, in addition to the intracellular movement of organelles.
Underlined Word: Centrioles
F - Cytoskeleton
