Anatomy & Physiology- Ch: 3
All body cells except sex cells are ________________.
Soma = body
Somatic Cells
Essential for movement of chromosomes during cell division; organization of mirotubules in cytoskeleton are functions of the ________________.
Centrosome and Centrioles
________________ contains two centrioles at
right angles; each
centriole is composed
of 9 microtubule triplets in a 9 + 0 array
Cytoplasm
_______________ are Proteins organized in fine filaments or slender tubes
Cytoskeleton
Strength and support; movement of cellular structures
and
materials are functions of the __________________.
cytoskeleton
________________ is a Lipid bilayer containing phospholipids,
steroids, proteins, and carbohydrates.
Plasma Membrane
Isolation; protection; sensitivity; support; controls entry and exit of materials are functions of the ______________________.
plasma membrane
_____________ distributes materials by diffusion.
Cytosol
_____________ are extensions of the plasma
membrane containing microfilaments.
Microvilli
Increase surface area to facilitate absorption of extracellular materials are functions of the ______________.
microvilli
________ are long extensions of the plasma membrane containing microtubules.
Cilia
There are two types of cilia :___________ and _______________ .
primary and motile
A primary cilium acts as a sensor. Motile cilia move materials over cell surfaces are functions of ________.
cilia
_________ are hollow cylinders of proteolytic enzymes with regulatory proteins at their ends
Proteasomes
Breakdown and recycling of damaged or abnormal intracellular proteins are functions of _________________.
proteasomes
__________ are RNA + proteins; fixed ribosomes bound to rough endoplasmic reticulum; free ribosomes scattered in cytoplasm
Ribosomes
Ribosomes function is ____________________.
protein synthesis
______________ are stacks of flattened membranes
(cisternae)
containing chambers
Golgi apparatus
Storage, alteration, and packaging of secretory products and lysosomal enzymes are functions of the _________________.
golgi apparatus
__________ have a double membrane, with inner membrane folds (cristae) enclosing important metabolic enzymes
Mitochondria
____________ produce 95% of the ATP required by the cell
Mitochondria
__________________ is a network of membranous channels extending throughout the cytoplasm
Endoplasmic reticulum (ER)
Synthesis of secretory products; intracellular storage and transport; detoxification of drugs or toxins are functions of the __________________________.
endoplasmic reticulum (ER)
______________ modifies and packages newly synthesized proteins
Rough ER
__________________ synthesizes lipids and carbohydrates
Smooth ER
____________ are vesicles containing
degradative enzymes
Peroxisomes
Catabolism of fats and other organic compounds; neutralization of toxic compounds generated in the process are functions of the __________________.
peroxisomes
________________ are vesicles containing digestive enzymes
Lysosomes
Intracellular removal of damaged organelles or pathogens are functions of the _________________
lysosomes
___________ is nucleoplasm containing nucleotides, enzymes, nucleoproteins, and chromatin; surrounded by a double membrane, the nuclear envelope
Nucleus
Control of metabolism; storage and processing of genetic information; control of protein synthesis are functions of the __________.
nucleus
The process of protein synthesis is called __________.
Protein synthesis
Cytoskeleton, microvilli, centrioles, cilia, ribosomes, and proteasomes are __________________________.
Nonmembranous organelles
The endoplasmic reticulum (ER), the Golgi apparatus, lysosomes, peroxisomes, and mitochondria are ________________________.
Membranous organelles
____________ - thin filaments composed of the protein actin
Microfilaments
_________________ -mid-sized between microfilaments and thick filaments
Intermediate filaments
_______________ — large, hollow tubes of tubulin protein
Microtubules
____________ bound to inner or outer surface of the membrane
Peripheral proteins
_____________ is all materials inside the cell and outside the nucleus
Cytoplasm
Ribosomes build ______________ in protein synthesis
polypeptides
Free ribosomes in cytoplasm manufacture __________ for cell
proteins
__________________ attached to ER manufacture proteins for secretion
Fixed ribosomes
Proteasomes contain enzymes (proteases)
that disassemble damaged
proteins for _____________.
recycling
High K, low Na, low Ca is _______________
inside cell
High Na, low k, high Ca is _______________.
outside cell
Glycolipids attach to the lipids on the cell as a ______________.
Cell marker
______________ are as thick as plasma membrane and Within the membrane
Integral proteins
______________ increase surface area for absorption and attach to cytoskeleton.
Microvilli
_______ are small hairlike extensions and move fluids across the cell surface
Cilia
Centrioles form _______________ during cell division
spindle apparatus
A __________ consists of nine microtubule triplets (known as a 9 + 0 array)
centriole
______________ are storage chambers within membranes
Cisternae
Functions of ________________________:
Endoplasmic Reticulum (ER)
_______________ are enzyme-containing vesicles that break down fatty acids, organic compounds; produce hydrogen peroxide (H2O2), and replicate by division
Peroxisomes
Mitochondria use oxygen to break down food and produce ATP this is called ___________________.
aerobic metabolism (cellular respiration)
What is the functional unit of heredity?
gene
As the cell life cycle proceeds, cyclin levels climb, causing the maturation promoting factor (MPF) to appear in the cytoplasm, initiating the process of __________.
mitosis
The four stages of mitosis in correct sequence are __________.
prophase, metaphase, anaphase, telophase
Hemolysis occurs when a red blood cell is placed in __________.
a hypotonic solution
A solution that contains a solute concentration greater than that in a cell is said to be __________.
hypertonic
____________ is when carrier proteins transport molecules too large to fit through channel proteins (glucose, amino acids); Molecule binds to receptor site on carrier protein; Protein changes shape, molecules pass through; Receptor site is specific to certain molecules
Facilitated diffusion
__________________ is important for ions and water soluble molecules
Channel Mediated Diffusion
Types of Passive diffusion:
Simple, Facilitated (Channel & Carrier), Osmosis
Lipid soluble compounds are _____________________.
Alcohol, Fatty Acid, Steroids
A _______________ solution would treat brain edema due to injuries.
Hypertonic
A _____________ is when two substances go through a channel in the same direction.
Synporter
An _______________ is when one substances enters a channel while another one is leaving a cell
Antiporter
The NA+ -K+ ATPase Pump is an example of ___________________
Primary transport
The effect of diffusion in body fluids is that it tends to __________.
eliminate local concentration gradients
__________________ have a 9 + 0 arrangement of microtubules;
are found in all animal cells capable of undergoing cell division;
are found in pairs, except during cell division
Centrioles
_________________ involves moving glucose and amino acids
Facilitated diffusion
___________ is when Na+ concentration gradient drives glucose transport and then ATP energy pumps Na+ back out
Secondary active transport