| 8450941359 | 3 major components of a cell | Plasma
Cytoplasm
Nucleus | | 0 |
| 8450950056 | Plasma Membrane | - Phospholipid bilayer (2 layers)
- Form a fluid framework
- Cholesterol
- Helps stabilize the phospholipid molecules to prevent breakage | | 1 |
| 8450950057 | Protein | - Serve as identification tags (tissue typing)
- Serve as receptors for molecules (hormones) | | 2 |
| 8450952825 | Cytoplasm | - Internal living material cells
- Organelles - "little organs"
- Small structures that make up most of the cytoplasm | | 3 |
| 8450952826 | Ribosomes | - "Protein factories"
- Makes enzymes and proteins | | 4 |
| 8450962422 | Endoplasmic Reticulum | - Membranous network of connecting sacs and canals through cytoplasm
a. Smooth
- makes new membranes (lipids and carbohydrates)
b. Rough
- Receives and transports proteins (from ribosmes) | | 5 |
| 8450962423 | Golgi Apparatus | - "Chemical processing and packaging center"
- Group of flattened sacs stacked on one another near nucleus
Product: Mucus | | 6 |
| 8450965512 | Mitochondria | - "Power plants"
- Composed of inner and outer membranes
- Site of cellular respiration
- Each contains one DNA molecules | | 7 |
| 8450965513 | Lysosomes | - "Digestive Bags"
- Bubble of enzymes encased by a membrane | | 8 |
| 8450968359 | Cilia | - Short hair like extensions on the surface that help move substances over the surface of the cell | | 9 |
| 8450968360 | Centrioles | - A pair of hollow cylinders that function in a cell reproduction
- Movement | | 10 |
| 8450971862 | Flagella | - Single projections extending from the cell surfaces
- Sperm cell tail | | 11 |
| 8451259352 | Nucleus | - "Brain"
- Control cell's function
- Contains the genetic code | | 12 |
| 8451272472 | Nucleoplasm | - Special cytoplasm in the nucleus | | 13 |
| 8451279246 | Nucleolus | Programs the formation of ribosomes | | 14 |
| 8451287132 | Chromatin | - Made of DNA in the nucleus | | 15 |
| 8451292576 | Regulation of life processes | Survival of species through reproduction of the individual
Relationship of structure to function is apparent in number and type of organelles seen in different cells | | 16 |
| 8451338829 | Passive Transport Processes | - Requires no energy
- Down a concentration level
- High to low | | 17 |
| 8451365580 | Diffusion | - Substances scatter themselves evenly throughout an available space | | 18 |
| 8451365581 | Osmosis | - Diffusion of water | | 19 |
| 8451368059 | Dialysis | - Diffusion of solutes | | 20 |
| 8451421390 | Filtration | - Movement of water and solutes through a membrane because of a greater pushing force on one side of the membrane
- Pushing force is called hydrostatic pressure | | 21 |
| 8451467201 | Active Transport Processes | - Requires energy - ATP
- Low to high | | 22 |
| 8451467202 | Ion Pumps | - Protein structure in plasma membrane | | 23 |
| 8451472693 | Phagocytosis | - Traps solids by the cell membrane and brings it into the cell
- Lysosomes destroy the solid
Ex: White blood cells | | 24 |
| 8451472694 | Pinocytosis | - Traps fluids or dissolved substances | | 25 |
| 8451475711 | Tonicity | - The relative concentration of solutes in a cell | | 26 |
| 8451475712 | Isotonic | - Salt (NaCl) concentration equals solution (water) concentration | | 27 |
| 8451480165 | Hypertonic | - Cell contains more salt than solution
- Water leaves
- Cells break (crenate) | | 28 |
| 8451598177 | Hypotonic | - Solution contains more salt than cell
- Water enters
- Cells break (lyse) | | 29 |
| 8451598178 | Mitosis | - Processes of cell reproduction
- One cell divides to become two cells
- Tied closely to the production of proteins | | 30 |
| 8451624909 | RNA | - Ribnucleic acid
- Found in cytoplasm | | 31 |
| 8451624910 | DNA | - Deoxyribonuleic acid
- Makes up chromosomes
- Double helix/stranded | | 32 |
| 8451685638 | Compare DNA | - Plays crucial role in protein synthesis
Composition:
Sugar:
- Deoxyribose
Phosphate
Nitrogen bases:
- Cytosine - guanine
- Adenine - thymine | | 33 |
| 8451689337 | Compare RNA | - Transfers genetic info from the nucleus to the cytoplasm
Composition
Sugar:
- Ribose
Phosphate
Nitrogen Bases:
- Cytosine - guanine
- Adenine - uracil | | 34 |
| 8451800922 | Transcription | - Double-ended DNA separates to form messenger RNA (mRNA)
- Each strand of mRNA duplicates a particular gene (base-pair sequence) from a segment of DNA
- mRNA molecules pass from the nucleus to the cytoplasm, where they direct protein synthesis in ribosomes and ER.
- Takes place in the nucleus | | 35 |
| 8451850585 | Translation | - Involves synthesis of proteins by ribosome
- Takes place in cytoplasm
- Requires use of information contained in mRNA to direct the choice and sequencing of the building blocks called amino acids
- As blocks of amino acids are assembled into proper sequence, a protein strand forms.
- Specific shape allows molecule in perform specific function. | | 36 |
| 8451969288 | Reproduction of cell | By division of the nucleus (mitosis) and the cytoplasm | | 37 |
| 8451981807 | Interphase | - Resting stage for the cell
- DNA replication
-Process by which each half of a DNA molecule becomes a whole molecule identical to the original DNA molecule
- Precedes molecule | | 38 |
| 8451981808 | Prophase | - First stage
- Chromatin granules become organized
- Chromosomes (pair of linked chromatids) appear
- Chromatids are held together by a beadlike structure called a centromere
- Centrioles move away from each other and migrate to opposite poles.
- Spindle fibers appear between centrioles
- The nucleolus and nuclear envelope disappears and nuclear envelope disappears, freeing genetic material | | 39 |
| 8451988774 | Metaphase | - Second stage
- Chromosomes align across the center of a cell
- Spindle fibers attach themselves to each chromatid
- Centrioles are at the opposite poles | | 40 |
| 8452163628 | Anaphase | - Third stage
-Centromeres break apart
- Separated chromatids are now called chromosomes once again
- Chromosomes are pulled to opposite ends of the cell
- A cleavage furrow begins to form.
- Beginning to divide cell into two daughter cells | | 41 |
| 8452187307 | Telophase | - Final stage
- Cell division is completed
- Nuclei appear in daughter cells
- Nuclear envelope and nuclei reform
- Cytoplasm and organelles divide equally
- Cell membrane forms around each daughter
- Two new cells form and rapid cell growth occurs | | 42 |
| 8452215297 | HP/HL = | x | | 43 |
| 8452218821 | LP diameter/x = | HP diameter | | 44 |
| 8452221889 | Area = | 3.14/(r)2 | | 45 |
| 8458343614 | 4 kinds of tissues | 1. Epithelial
2. Connective
3. Muscle
4. Nervous | | 46 |
| 8459704292 | Epithelial | - Covers body and many of its parts
- Form continuous sheets that contain blood vessels
- Classified by shape and arrangement of cells | | 47 |
| 8460814528 | Simple squamous epithelium | - Single layer of very thin, irregularly shaped cells
- Transport is special function ( such as absorption of oxygen into blood)
- Located in alveoli of lungs, lining of blood and lymphatic vessels | | 48 |
| 8458405651 | Stratified Squamous Epithelium | - Several layers of closely packed cells
- Protection is primary function
- Against microbes | | 49 |
| 8458401655 | Psuedostratified Epithelium | - Single layer of tall cells that wedge together to appear as if there are two or more layers
- Psuedo = stratified
- Lines the trachea
- Moves mucus along surface
- Protection against dust or foreign particles | | 50 |
| 8458398576 | Simple Cuboidal Epithelium | - Form tubules specialized for secretory activity
- Usually form clusters called glands | | 51 |
| 8458398024 | Simple Columnar Epithelium | - Single layer of tall, narrow cells
- Contains mucus, producing goblet cells
- Specialize in absorption
- Surface layer of lining of stomach, intestines | | 52 |
| 8458393211 | Stratified Transitional Epithelium | - Up to 10 layers of roughly cuboidal-shaped cells that distort to squamous shape when stretched
- Function - protection
- Found in body areas subject to stretch and must be able to stretch (urinary bladder) | | 53 |
| 8458389192 | Connective | - Most abundant and widely distributed tissue in the body
-Multiple types, appearances and functions
- Relatively few cells in intercellular matrix, found between it's cells. | | 54 |
| 8458384414 | Adipose (fat) | - Lipid storage
- Cells contain large fat compartments
- Area under skin padding at various points
- Protection, insulation, support, nutrient reserve | | 55 |
| 8458384413 | Areolar | - Glue that holds organs together
- Loose arrangement of fibers and cells
- Area between other tissues and organs | | 56 |
| 8458384415 | Dense Fibrous | - Consists of collagen fibers, compose tendons and bone marrow
- Dense arrangement of collagen fiber bundles
- Tendons, ligaments, fascia, scar tissue
- Flexible but strong connection | | 57 |
| 8458382039 | Bone | - Support, protection and stores calcium
- Hard, calcified matrix arranged in osteons
- Skeleton | | 58 |
| 8458382040 | Cartilage | - Firm plastic gel
- Hard but flexible matrix with imbedded chondrocytes
- Part of nasal septum, area covering articular surfaces of bones
- Firm but flexible support | | 59 |
| 8458379153 | Blood | - Liquid
- Formation of blood
- Blood vessels
- Transportation | | 60 |
| 8458379154 | Hematopoietic | - Formation of blood and lymphatic cells (defense)
- Liquid matrix with dense arrangement of blood cell-producing cells
- Red bone marrow | | 61 |
| 8458375003 | Muscle | - Movement specialist of the body | | 62 |
| 8458375004 | Skeletal | - Voluntary
- Striated
- Long, threadlike cells with multiple nuclei and striations
Location:
- Muscles that attach to bones
- Maintenance of posture
- Movement of bones | | 63 |
| 8458371311 | Cardiac | - Forms walls of heart - heartbeat
- Involuntary
- Intercalated disks
- Branching, interconnected cylinders with faint striations
Location:
- Wall of heart | | 64 |
| 8458371312 | Smooth | - Also called visceral
- Involuntary
- Threadlike cells with single nuclei and no striations
- Movement of substances along respective tracts, changing diameter of vessels, movement of substances along ducts, changing of diameter of pupils and shape of lens, errection of hairs (goose bumps)
Location
- Walls of tubular viscera of digestive respiratory and genitourinary tracts
- Walls of blood vessels and large lymphatic vessels, ducts of glands, intrinsic eye muscles ( iris and ciliry body ) arrector muscles of hairs | | 65 |
| 8458371313 | Nervous | - Provides rapid communication between body structures and for control or body functions
- Ex. Spinal cord tissue
- Consists of two cell types | | 66 |
| 8458368993 | Neurons | Conducting cells | | 67 |
| 8458368994 | Glia (neuroglia) | Supportive and connecting cells | | 68 |