A&P 3C Quiz Study Guide

* What is the general name for the cellular material located between the plasma membrane and nucleus
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* What is the general name for the cellular material located between the plasma membrane and nucleus
Cytoplasm
Which of the cytoplasmic organelles
are covered by a membrane and which are not?
Membrane:
Mitochondria
Peroxisomes
Lysosomes
Endoplasmic reticulum
Golgi apparatus

Nonmembrane:
Cytoskeleton
Centrioles
Ribosomes
2. Which organelle has inner membrane folds that form shelf-like cristae, is the powerhouse of the cell?
Mitochondria
Which organelle is the site of protein synthesis?
Ribosomes
4. Which organelle consists of interconnected tubes and
parallel membranes enclosing cisternae? (It is continuous with the nuclear membrane.)
Endoplasmic Reticulum (ER)
5. What is the difference between smooth ER and rough
ER?
Rough ER is studded with ribosomes while smooth does not
7. Which organelle modifies, concentrates, and packages
proteins and lipids?
Golgi apparatus
8. Which organelle contains digestive enzymes and is
especially abundant in phagocytes?
Lysosomes
9. Which organelle contains powerful oxidases and
catalases for detoxification? (These are abundant in the
liver and kidneys.)
Peroxisomes
. What acts as the microtubule organizing center in
the cell?
Centrosome
. What is the difference between cilia and flagella?Flagella- whip-like extensions on certain cells (Sperm) Cilia- like little hairs to move substancesWhat is the function of microvilli and where are they found?small finger-like extensions to increase surface area. Found in intestines4. Which organelle is the largest and acts as the control center of the cell?Nucleus5. What regulates the entry and exit of molecules through the nuclear envelope?Nuclear pores6. What are the dark-staining spherical bodies within the nucleus which are not membrane bound and are involved in rRNA synthesis and ribosome subunit assembly?Nucleoli7. What is the fundamental unit of chromatin called?Nucleosomes