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what is meant by the term homeostasis?
it is the ability of an organism to monitor conditions and maintain them.
What type of organisms are not composed of eukaryotic cells?
Group of Different Tissues
Which is the most common form of feedback control in humans?
Why are viruses considered not to be alive?
They cannot reproduce on their own and require a host
Cells that possess a nucleus and are complex due to a membrane system that establishes internal compartments in what group?
The PH of Sofia is fairly acidic. even after drinking, the ph of your blood with not change. this is an example of..
Regulating electrolyte Balance during a run is an example of homeostasis
according to definitions of life: all living things require...
what does a scientist do after making observations?
formulate a hypothesis
a nucleus of neutrons and protons orbited by electrons
if the diagram represents feedback loop, which part would represent the effectors
Atomic Mass is calculated by
adding the mass of the neutrons and protons
the atomic number for oxygen is 8. how many protons does it have?
which type of liquid is a key component of the cell membrane?
the positively charged particle in an atom is called..
what is the difference between carbon 12 and carbon 14
Carbon 14 has more neutrons
what kind of bond is depicted in this diagram?
an imbalance of the common ions found in the human body is ...
what is the first step in the scientific method?
how many electrons are in the valence shell of the atom shown here?
the arrow is pointing to the ph that is:
oxygen, with an atomic number of 8, is a neutral atom and would have _ electrons in the first shell and _ in 2nd shell
a bond where two or more atoms share elctrons
how many neutrons does C612 (atomic weight is 12/protons=6) contain?
which subatomic particle has no charge?
in the diagram, the organelles responsible for ATP production is labeled as...
the organelles that houses DNA is...
function of the structure labeled B
the cell membrane is composed of two layers of:
phospholipid, with proteins and sugars interspersed
when glucose is moved into cells from high concentration to a low concentration using trabsport/carrier proteins, it is...
The thinnest cytoskeletal structures, responsible for cellular locomotion and intracellular movements in cell division are
Name this structure
a membranous organelle that chemically modifies and ships proteins to other organelles or out of the cell is..
DNA "unzipping" is possible because it consists of..
which atom would not bond to another atom?
an atom with 10 total electrons
movement of water through a selectively permeable membrane from areas of high concentration to areas of low concentration is reached
what process brings into the details large macromolecules and particles by the formation of a vesicles in outer membrane?
if a liver cell were place in a beaker with a solution containing the same solute concentration as that found inside the cell, we would sat that the beaker contained..
any substance that when dissolved in water will give off H+(hydrogen) ions is referred to as..
which phase of meisosis is depicted here?
nucleotides are composed of
one sugar, one phosphate, and two Nitrogenous bases
if a cell begins mitosis with 36 chromosomes, there will be ____ chromosomes and they will be ____ genetically
the rules of DNA pairing of vases are Adenine pairs with Thymine and a cytosine pairs with
what cell type, if mutated, would allow the mutation to be passed on to family members for generations?
gametes such as an egg or sperm
DNA contains four types of
which part of the vertebrae does the fibrous disc sit?
what is the division of cytoplasm?
cytokinesis (cleavage furrow)
what does not describes mieosis?
the most appropriate form of cell division for repairing an injured tissue is
where would you find this type of muscle fiber?
in the digestive tract
what does part A or the neuron do?
what is the name of B?
after a fracture when a bone begins to heal, the first thing that happens is
blood clot is formed
what two words are used to classify epithelium in terms of the number of layers?
simple and stratified
what tissue type lines the body's cavities?
what component of connective Tissue is designed for strength?
which connective Tissue is responsible for cellulite bumps in the skin?
the matrix of connective Tissue can be
liquid, gel like, or solid
cartilage is vascular which means
it has a rich blood supply
smooth muscle lines hollow organs like
blood vessels and the digestive tract
what component of connective Tissue is designed for elasticity?
what is a disease that damages cartilage inside joints by wearing away cartilage?
which cells of the nervous Tissue are supporting cells?
the heart is an example of
what is the name of the structure labeled B?
if substantial lactic acid were found in a person's body, then which type of glucose breakdown is occuring?
in the illustration, the diaphysis is indicated by the letter
messenger RNA is decoded by transfer RNA three Bases at a time. the three Bases are called
what would be the mRNA sequence given a DNA sequence of GAC?
which part of the adolescent skeleton, if damaged, could result in abnormal growth?
process that takes the DNA to the RER
cartilage that forms at the end of long bones and functions to allow bones to slide past each other during movement
tendon or ligament is made up principally of
dense connective tissue
bands of connective Tissue that aid jn the attachment of muscles to bones are
what forms within the space of spongy bone and functions to produce blood cells?
connective Tissue that form strong straps and functions to hold bones together, support joints, and direct movement
which phase of mitosis is shown below?
since human gametes only carry 23 chromosomes they are consisdered?
what type of epithelium is this?
what kind of bone stricture is labeled A
how many epithelial Tissue is this?
when looking at this type of tissue under a microscope, the nucleus is pushed to the side
in which kind of tissue would you find this?
after puberty the growth plates disappear. therefore bones can
increase in width, but not length
an epithelial Tissue that is composed of one layer of flat cells would be called
what tissue is pictured here?
which type of cartilage is found between the bones of the spinal column?
DNA replication occurs during
in the nucleus, the DNA matches with the mRNA. to make a mRNA molecule, which is basically a message, is called?
which structure is defined by the borders called z lines?
knows as the thick filament
what is the name of the neurotransmitter that acts at the neuromuscular junction got muscle contraction?
if we cannot get enough oxygen to the muscle cells, what happens?
Muscle cell stops contracting, makes less atp, and it continues with an anaerobic process
what is the origin of the bicep muscle during flexion of the elbow?
myosin filaments are
the sliding filament occurs until
atp is exhausted, ach is removed by enzymes, and Ca+ I'd returned to the sacroplasmic reticulum
what muscle fibers have a large blood supply?
what is the name of the structure labeled as A
what division of the nervous system includes the brain and spinal cord?
central nervous system
what is the function of the afferent part of the peripheral Nervous system?
transmits information to the CNS from different receptors
which nervous system division is rendered to as the fight or flight system?
sympathetic nervous system
what is a typical resting potential for neurons?
compared to thicker axons, thinner axons
conduct impulses more slowly
which structure contains acetylcholine?
which type of cell allows the regeneration of neuronal axons in the peripheral Nervous system?
which phase of an action potential is depicted when the inside of the cell is becoming more positive
the non-compressible fluid that protects the brain and the spinal cord is
how many cranial nerves are there?
the nervous system is composed of
interneurons, motor neurons, and sensory neurons
which neurotransmitter is associated with alzhiemers disease?
which is the innermost layer of the membranes that surround the brain?
the center part of the brain stem that looks like a butterfly is
the gray matter in the spinal is
the olfactory nerve
what kind of receptor for our eyes use to detect light?
the senses of taste and smell are controlled by
the structure labeled B is responsible for balance
when we get used to an unchanging smell, sight or taste, it is called
the eyes regular exercise light and sends it to the brain via
another name for taste is
hearing is controlled by what receptor?
olfactory bulbs are located in the
a synapse is a junction between
nerve fibers (from one neuron to another)
the site where the myosin protein attaches to actin is called
when we use our hamstring muscles to flex, it is considered the
which structure is labeled B
Muscle cells contract
on and all or nothing basis
regarding label a, why is this vesicles fusing with the cells membrane?
an impulse has arrived at the neuromuscular junction
in the picture, the process that is being used in A is called
what is the function of the Somatic nervous system?
depolarization of a membrane begins with the
opening of sodium channels
what is the name of the structure labeled as B
b is responsible for
coordination of voluntary muscular movements; helps maintain posture and balance
the medulla contains important centers that
control heart rate and breathing
the middle layer that protects the brain is the
neuroglia that compose the blood-brain barrier are
the bones of the inner ear that transfers sound waves to the inner ear are the stapes, incus and
the peripheral Nervous system can repair as long as
the cell body is not damaged
what is the name of the membranes that surrounds the heart?
what is the name of the structure labeled A
what is the name of the structure labeled b
regarding structure C, where is the blood heading as it passes this structure?
what is the name of the structure that initiates the heartbeat?
which of the following structures delays contraction of the heart?
what is the name of the blood vessels that take blood away from the heart?
what is the purpose of precapillary sphincter?
they change the amount of blood flow into the capillary beds
how do you know this is a picture of a vein?
there is a valve
what is the function of the valves in veins?
prevention of backward blood flow
the flow of blood from the right side of the heart through the lungs and back to the left atrium is called
how do you know this is a capullary?
it has the simplest structure, very thin
what condition usually develops as a result of congestive heart failure?
the ventricles are thickets than the atria because
they must pump blood farther
the mitral valve is most prone to
prolapse, a condition that is more common in women
identify this structure
what belongs in the upper respiratory tract?
what is part of the adams apple
why does a boys voice change?
testosterone makes vocal cords thicker
which parts of the brain set your breathing rate?
the volume of the air during each normal breath is called
the exchange of gases occur in the
the serous membrane covering the lungs is
what is the name of the structure labeled B that leads into the ear?
what happens if there was a hole in the lung?
it would collapse
vital capacity is the amount of air you breathe
in and out during one huge breath
what is the name of muscle C?
when does the diaphram contract?
one function of the respiratory system is
to maintain blood ph
which plasma proteins come together in a specific order to destroy invading bacteria?
where does fright or flight response belong?
which event is characteristic of the alarm phase of the general adaptation syndrome?
release of epinephrine
what is happening during the exhaustion phase of the general adaptation syndrome?
organs are failing due to prolonged stress response and resulting damage
which layer of the skin contains the most fat?
the outer layer of our skin is composed of which of the following tissue types?
which cells is stimulated by uv radiation?
what is the most common form of skin cancer?
basal cell carcinoma
what is the no vascular portion of the skin?
what is the purpose of C?
to provide insulation and connection
what happens when the complement systems gets activated?
specific plasma proteins assemble
what chemical barrier addresses a viral infection?
what is one way which fever cab defend the body?
the spleen sequester iron slowing bacterial reproduction
why should you feed a fever?
eating provides the energy and nutrients for the immune cells
what is a marcophage?
a large cell that can ingest and destroy dying cells and cellular debris
what is a function of the lymphatic system?
absorbing fats from intestine/cleans the interstitial fluid
how are lymphatic capillaries different from blood vessesl?
they are part of an open system
high blood pressure
a weak spot in a blood vessel that could potentially burst is known as
what is the smallest of veins that form when capillaries merge?
we acquire what kind of immunity throughout our lives?
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