Chapters 1-3 Review Flashcards
Cytoskeleton
Proteins which offer strength and anchoring of organelles
Cytoplasm
everything between the cell membrane and the nucleus
__ elements in human body
26
Inorganic acids, bases, and salts
typically held together by ionic bonds
Phosphate Group (RNA)
forms covalent bond with Ribose sugar as backbone of helix
Repressor genes
genes which inhibit mitosis
Urinary System
filters blood to remove wastes and maintain homeostasis of plasma
Atomic Number
Is the number of Protons (and therefore also the number of electrons)
Golgi Apparatus
membranous curved folds w/hollow cisternae, receives transport vesicles (from Rough ER) on the cis (convex) Golgi surface and exports vesicles from trans (concave) surface: secretory vesicles, lysosome, membrane renewal vesicles
PM Bilayer of phospholipids
amphipathic, being hydrophobic in center
Cytology
The study of cells
Cardiovascular System
distributes nutrients, gases, hormones, and heat
Regional Anatomy
(Gross) Areas of specific regions (head, trunk, etc)
Simple Diffusion
particles can freely pass through lipid membrane (non-polar)
Skeletal System
support, protection, mineral storage, hematopoiesis
Organic Compounds
contain C and H backbone of covalent bonds, usually has O2 as well
DNA
double helix of nucleotide polymers wrapped around histones. 23 homologous pairs
Non-Polar Covalent
equal sharing of electrons so no small charges of the molecule
Anterior
Ventral
Oncogenes
mutation of repressor or regulatory genes that lead to malignant tumors
Prophase
i. DNA tightly coil into chromosomes (paired chromatids attached by centriole)
ii. Nuclear envelope disappears
iii. centrioles migrate to opposite poles creating mitotic spindles stretching cell
Para-Sagittal
divided unequally
Polyribosome
One mRNA attaches to several ribosomes simultaneously producing same protein
Anaphase
i. kinetochore spindles disassembled and chromatids separate to opposite poles
Nucleus
control center directing synthesis of over 100,000 proteins directed by genes
A-site
to which 2nd mRNA binds and amino acids from the two tRNA form peptide bond
Half-life
refers to the time it takes for half of the radioactive material to decay
Extrinsic Regulation
in which homeostasis is directed by the Nervous or Endocrine systems
Solute
element/compound that dissolves in another (solvent)
Positive Feedback System
the effector increases the stimulus. Continues until process ends (ex. child birth and blood clotting)
Differentiation
Cells lose ability to transcribe all the available genes.
Stem cells retain the ability to transcribe different genes so can differentiate to several cell types
Unsaturated fatty acids
have one or more double covalent bonds
Ribose (RNA)
5 carbon sugar
Sagittal
Vertically divides body into left and right halves
Posterior
dorsal
Reproductive System
hormones, reproduction
Channel mediated transport and what its dependent on
substance small enough to fit through a pore, dependent on:
i. Distance across the membrane
ii. Molecular size: smaller molecules pass through faster
Temperature: higher temperature speed up transport
Gradient size: the greater the concentration differential, the faster the transport
Electrical forces: attraction by opposite charges (electrical gradient)
Compound
if atoms are of different elements
Retroperitoneal viscera
behind peritoneum, anchored with CT
Differentiation
cells specialize in their function
Countertransport (antiport)
Na+ moves into cell while solute moves out of cell
Somatic cells
all the diploid cells of the body
Intermediate filaments
helps maintain cell shape and anchors organelles
Integumentary System
protection, heat regulation, and sensory input
Mitochondria
aerobic energy production (~95% of cell energy) via tricarboxylic acid cycle
- Self-dividing: has its own DNA and RNA. Derived from maternal ova.
- Cristae: membranous folds containing enzymes of oxidative phosphorylation
- Matrix: in fluid of mitochondria
Smooth ER
w/o ribosomes for synthesis of carbohydrates & lipids (Ca+2storage)
Kinetic Energy
energy of motion and is energy released during catabolism
Electrons
are negatively charged particles that travel in obit/cloud around nucleus. The mass of an electron is insignificantly small
Fibrous proteins
arranged in strands for support or movement
Nitrogenous Base (RNA)
3 consecutive nitrogenous bases serves as a codon for protein synthesis
i. Adenine matches DNA Thymine during RNA synthesis
ii. Cytosine matches DNA Guanine during RNA synthesis
iii. Guanine matches DNA Cytosine during RNA synthesis
iv. Uracil matches DNA Adenine during RNA synthesis
Ribosome
consists of large and small protein subunits stabilized w/rRNA
Metabolism
ability to carry out chemical reactions and create energy
RNA
are polymers of nucleotides arranged in a single helix stand
Consists of: Ribose, Phosphate Group, Nitrogenous Base
Systemic Anatomy
(Gross) Regards specific organ systems (nervous, endocrine, etc)
Ribosomal complex
moves down as a new tRNA binds the A-site and a tripeptide is formed.
Endocrine System
Slow, long-term effect on homeostasis and maturation
Nitrogenous Base (DNA)
forms hydrogen bonds with nitrogenous basis from other helix
i. Adenine which pairs with Thymine
ii. Cytosine which pairs with Guanine
iii. Thymine which pairs with Adenine
v. Guanine which pairs with Cytosine
Movement
at cellular, organ, organ system, and organism level
Anabolism
synthesis reactions to form larger molecules (dehydration synthesis in the body)
Organ System level
how organs interact to perform complex task for organism
Dorsal Body Cavity
Lined with Meninges. Cranial Cavity and Spinal Cavity
Right Upper Quadrant
Houses liver and gall bladder
Membrane Renewal Vesicles
to replenish membrane
Growth
cells to increase in number and size
Nervous System
maintains homeostasis by quickly responding to stimuli
Pinocytosis
Random pinching in of membrane to drink in external environment
Hydrophilic
mainly formed with polar covalent bonds so dissolve in water
Symptoms
objective findings from testing the subject (blood, temperature, x-rays, etc)
DNA
genetic material which are polymers of nucleotides arranged in a double helix.
Consists of: deoxyribose, phosphate group, nitrogenous base
Osmotic Pressure
the force by which water will move in or out of a cell if solutes can’t
Right and Left Hypochondriac Regions
oIxIo
xIxIx
xIxIx
Protein Shape
based on the folding of peptide bonds between polypeptide chain(s)
Globular Proteins
compact and rounded to serve as carriers or enzymes
Thoracic Cavity
In torso and superior to diaphragm
Properties of water
Solubility, Reactivity, High Heat Capacity, Lubrication
Life process definition and what they are
distinguishes that which is living from which is not.
- Metabolism
- Responsiveness
- Movement
- Growth
- Differentiation
- Reproduction
Pubic / Hypogastric Region
xIxIx
xIxIx
xIoIx
Cristae
membranous folds containing enzymes of oxidative phosphorylation
Free Ribosomes
synthesizes proteins for the cytoplasm
Atomic Weight
the mass of atom is equivalent to mass of Protons and Neutrons (1 Dalton each)
Active Transport
solutes bind carrier protein & move into cell against concentration gradient. This form requires ATP (eg- Na+/ K+pump)
Endocytosis
cell membrane pinches in to create a vesicle in the cell
Effector
responds to the commands from the control center
Haploid
unpaired chromosomes
Codon
each 3 nitrogenous bases of mRNA serves as codon to match specific tRNA
Anchoring Proteins
which help stabilize to neighboring structures
Receptor
senses the change (stimulus) in environment
Left and Right Iliac Regions
xIxIx
xIxIx
oIxIo
Disaccharide
two sugar molecules (e.g.- maltose)
Chromosomes
DNA tightly coiled into discernable structure (present during mitosis)
Transcription
RNA Polymerase aids synthesis of mRNA from coding strand of DNA of gene
Introns are snipped off pre-mRNA as form of editing triplets of nitrogenous bases
Exons are remaining nitrogenous bases which are spliced together to form final mRNA
Homeostasis
Ability to maintain a relatively constant environment despite fluctuations externally
Ions
a charged atom which has either given up or gained an electron
Cytokinesis
An equal division of cytoplasm by pinching inward along the cell equator
Reactivity
participates in anabolic dehydration synthesis and catabolic hydrolysis
Exons
are remaining nitrogenous bases which are spliced together to form final mRNA
Diagnosis
distinguishes anatomical and physiological abberations for any given disease
PM Cholesterol
in hydrophobic center helps to stabilize membrane
Proteins
formed from C, O, H and N (sometimes S) and it’s function is shape-dependent
Saturated fatty acids
have only single covalent bonds
Mitotic Rate
Rate of mitosis
Reproduction
for perpetuation of species
Molecule
2 or more atoms
Phagocytosis
cytoplasm of special WBC’s surround foreign body and forms phagosome
Carbohydrates and its types/properties
1 Carbon / H2O molecule. Important for energy production from catabolism
- Monosaccharide
- Disaccharide
- Polysaccharide
- Hydrophilic
Microvilli
increases exposed surface area
Matter
has mass and takes up space
Tissue Level
Groups of cells work together to perform a limited function
Phospholipids
main component of cell membranes w/amphipathic properties
Tail of tRNA
binds specific amino acid (based on anticodon at loop)
Phosphate Group (DNA)
forms covalent bond with Deoxyribose sugar as backbone of helix
Lysosomes
digest organelles & metabolites
Lysosomal Storage Disease: genetic loss of enzyme (eg- Tay Sachs)
Heterozygous
both parents offer different alleles and result is blend:
- Recessive alleles only expressed if homozygous
- Dominant alleles have stronger expression regardless of other allele
Deoxyribose (DNA)
5 carbon sugar
Chemical Reactions and the types
Reactants (substrates) rearrange to form products
- Anabolism
- Catabolism
- Metabolism
- Energy (Kinetic / Potential)
- Catalysts (enzymes)
Anatomical Position
Facing forward with sole of feet down and palms forward
Pleura
Left and right pleura houses lungs which are encased in pleural membrane
Cytosol and it’s properties
Cytosol is intracellular fluid. When compared to extracellular, the cytosol has:
High in K+ and low in Na+
High concentration of Proteins (mostly negatively charged)
High concentration of amino acids, carbohydrates and lipids
Some granules of glycogen & lipid droplets