Anatomy test 1 Flashcards
homeostasis
how your body maintains a stable internal environment
characteristics of life
- movement
- responsiveness
- growth
- reproduction
- respiration
- digestion
- absorption
- circulation
- assimilation
- excretion
anabolism
to build up something
pH
0-6 acidic
- 00 neutral
- 01-14 basic
Na
sodium
four elements that make up 90% of the body’s mass
- carbon
- oxygen
- hydrogen
- nitrogen
elements carry a ________ charge
negative
peptide bonds are found in
proteins
smallest unit of matter
atom
function of ATP
primary cellular energy carrier
organic molecules
- carbohydrates
- lipids
- proteins
- nucleic acids (DNA, RNA, ATP)
what do you know about C6 H12 O6?
- it is organic (has C & H)
- 6 carbon
- 12 hydrogen
- 6 oxygen
neutral pH
7.00
basic pH
7.01-14
enzymes and antibodies are examples of
proteins
amino acids
- they make up 20 proteins
- carboxyl group
- hydrogen group
- one or more atoms
the most abundant chemical compound in the body
water
DNA base-pairing
A-T
C-G
decomposition reactions
- hydrolysis
- catabolic
- digestion
breaks down large molecules to small using water
Covalent bonds for electrons
share
atoms are distinguished from other atoms by
the # of protons
nucleotides contain
- sugar
- phosphate group
- nitrogen base
neutral atoms have
the same # of protons as electrons
protons + neutrons =
atomic weight
the pH scale measures the
concentration of hydrogen ions [H+]
a fatty acid with a single covalent bond between 2 of the carbons is said to be
monosaturated
a “saturated” fat is saturated with
hydrogen
RNA’s sugar
ribose
what DNA and RNA have in common
the bases: A, G, C
the primary lipids in the lipid bilayer of the human plasma membranes are
phospholipids
organelles that contain enzymes for production of ATP are
mitochondria
organelles that contain enzymes that destroy materials engulfed by phagocytes are
lysosomes
the cell does not need to expend energy (ATP) in order to perform
- diffusion
- osmosis
- filtration
the RNA responsible for bringing and reading the codon and bringing in the amino acid for protein synthesis is
tRNA
Cells try to move sodium ions from the cytoplasm to the outside of the cell where the Sodium concentration is 14 times higher than the inside of the cell. This means sodium ions are moved out of the cell by
active transport
a red blood cell (high in proteins inside) placed in pure water would
the cell would fill up with water and burst
the genetic information is coded in DNA by
base pairs
A-T
C-G
secretory proteins and membrane molecules are synthesized mainly by the
rough ER or ribosomes
the type of storage vesicles produced by the Golgi complex
lysosomes
function of centrioles
they separate chromosomes during cell division
the weakest bonds formed from polar molecules
hydrogen bonds
carbohydrates are
starches and sugars
lysosome
have digestive enzymes to break up old cell components and bacteria
“garbage disposals”
nucleolus
site of ribosome production
black spot in nucleus
smooth ER
without ribosomes
functions with lipid synthesis
plasma membrane
regulates the movement of substances in and out of the cell
centrioles
separate chromosomes during cell division
mitochondria
powerhouse of the cell
contains enzymes for aerobic respiration (cellular respiration)
rough ER
with ribosomes
functions in protein synthesis
Golgi complex
flattened sacs
refines, packages, modifies, delivers proteins
“UPS”
nucleus
allows the passage of certain substances
flagella
found in sperm cells
extension of cells
ribosomes
provide structural support for RNA molecules
transverse plane
divides the body in half at the waist
axillary
armpit
popliteal
back of knee
relationship between bladder and stomach
stomach is SUPERIOR to urinary bladder
cephalic
head
relationship between ears and tip of nose
ears are LATERAL to the nose
circulatory system
the body system that distributes oxygen and nutrients to the cells and carries carbon dioxide and wastes away from cells
parital peritoneum
lines the abdominal cavity
parts of the integumentary system
skin, hair, nails, glands, senses, regulates body temp
anatomical position
- standing erect
- face forward
- upper limbs at sides
- palms forward
sagittal plane
vertically divides the body through the midline into right and left portions
components of feedback systems
- control center
- receptor
- effector
chest cavity
thoracic
negative feedback system
when a response from the body stops or fixes an outside stimulus
levels or organization from least complex to most complex
- micro
- atom
- molecule
- macromolecule
- organelle
- cell
- tissue
- organ
- organ system
- organism
- macro
organ
a structure that has a specific structure and is composed of two or more different types of tissue