Midterm - Cells, Tissues, Organs & Organ Systems (P.3) Flashcards
This is the INFORMATION CENTER.
NUCLEUS
What are the 4 MAJOR FUNCTIONS of the NUCLEUS?
- Contains DNA
- Control and Information Center
- Directs chemical reactions
- Stores genetic information
This region in the nucleus contains many PORES that allow material to enter and leave the nucleus.
NUCLEAR ENVELOPE
The __________ in the nucleus have DNA organized into ________ - which are specific DNA sequences that _________ and_________ cell activities.
CHROMOSOMES; GENES; CONTROL; REGULATE
The nucleus is a _______________ for ___________
PRE-ASSEMBLY POINT; RIBOSOMES
The nuclear pore is a ________ for _______ and ________.
PASSAGE; RNA; PROTEINS
This is the site of the assembly of ribosome units.
NUCLEOLUS
Where are PROTEINS synthesized?
RIBOSOMES
These ribosomes synthesize proteins that will function in the __________.
FREE-FLOATING; CYTOSOL
What are the TWO parts of the CYTOPLASM?
1) CYTOMEMBRANE SYSTEM
2) THE AQUEOUS PART CONSISTS OF THE FLUID CYTOSOL
Ribosomes attached to the ________ SYNTHESIZE PROTEINS that function inside of organelles or outside of the cell.
ROUGH ENDOPLASMIC RETICULUM
What are the FOUR (4) PARTS of the CYTOMEMBRANE SYSTEM?
1) ER
2) GOLGI APPARATUS
3) VACUOLES
4) VESICLES
Another term of “CYTOMEMBRANE SYSTEM”
ENDOMEMBRANE SYSTEM
This is a series of channels that transport proteins.
ENDOPLASMIC RETICULUM
This is the site of ribosome attachment and also stores enzymes and proteins.
ENDOPLASMIC RETICULUM
The ER stores ___________ and __________.
ENZYMES; PROTEINS
What does the ER transport?
PROTEINS
What are the TWO (2) TYPES OF ER?
1) SMOOTH ER
2) ROUGH ER
This organ in the CYTOMEMBRANE SYSTEM aids in the SYNTHESIS and SECRETION of glycoproteins.
GOLGI APPARATUS
It aids in PROCESSING and MODIFYING other materials (e.g., enzymes)
GOLGI APPARATUS
The nucleus controls what?
PROTEIN PRODUCTION
Specifies the recipe for the proteins; contained in the nucleus.
DNA
The nucleus contains the ________, which synthesizes ribosomes.
NUCLEOLUS
What matches the sequence of DNA?
Messenger RNA (mRNA)
This is a copy of the genetic information; it carries the recipe for making proteins.
mRNA
Match:
Nucleus = Control and Information Center
Endomembrane System = ?
PROTEIN PRODUCTION & LOCALIZATION
The ENDOMEMBRANE SYSTEM is composed of?
1) SMOOT & ROUGH ER
2) GOLGI COMPLEXES/BODIES
3) VESICLES