what level of organization does a protein belong to?
what level of organization is the smallest living level of organization?
This is not a major tissue type
complex to most simple level of organization
organism, system, organ, tissue, cell, molecule
which organ provides support, protection of soft tissue, mineral storage and blood formation?
which organ system transports nutrients, metabolic waste, gases and defense cells?
Elimination of excess water, salts and waste products are functions of the ___ system.
which organ removes carbon dioxide from the bloodstream?
protection from environmental hazards is a function of the ___ system
the maintenance of a constant internal environment in an organism is called
When body temperature rises, a center in the brain initiates physiological changes to decrease the body temperature. This is an example of ___
The integrating center for the negative feedback loop that regulates body temperature is the ___
A cell or organ that responds to commands of the control center in negative feedback is termed an
This type of feedback exaggerates the effects of variations from normal
The quadrants of the abdominopelvic region include all except
A person lying on a bed gazing at the ceiling is in the ___ position.
A person facing forward with hands at the sides and palms facing forward is in the ______ position.
What region corresponds with the buttocks?
What term refers to the foot?
The urinary bladder is found in the ___ quadrant and the ____ quadrant.
right lower left lower
The liver is primarily located in the ____ quadrant.
While standing erect, the direction of caudal is ____.
While standing in the anatomical position, ____.
front refers to anterior and ventral. back refers to posterior and dorsal
Terms of anatomical direction are used to describe ____.
one body part in relation to another
An anatomical term that means the same as ventral is ___.
Which plane divides the body into right and left planes?
A midsagittal section would pass through the ___.
The heart is ___ to the lungs.
The wrist is ___ to the elbow.
The chin is ____ to the nose.
The muscle known as the diaphragm separates the ____ from the ____.
thoracic cavity abdominopelvic cavity
The thoracic cavity contains the
The serous membrane covering the stomach and most of the intestines is called the ____.
____ is a structure located within the mediastinum.
This organ is not located within the abdominal cavity.
Visceral pericardium is located ____.
on the heart itself
The two major divisions of the ventral body cavity are the ____ and ____.
The molecule CO2 is known as ____.
The molecule O2 is known as ___.
____ is not an example of an inorganic compound.
A solution containing equal numbers of hydrogen ions and hydroxide ions is ___.
What would be the most acidic?
stomach secretions pH of 1
If a substance has a pH higher than 7, it is ___.
Which has a greater concentration of hydrogen ions, a substance with a pH of 5 or a substance with a pH of 4?
a pH of 4
A ___ removes hydrogen ions and an ___ releases hydrogen ions.
Carbohydrate molecules ___.
are the body's most readily available source of energy
The most important metabolic fuel in the body is ___.
The group of organic compounds containing carbon, hydrogen and oxygen in a near 1:2:1 ratio is defined as a ___.
Carbohydrates, lipids and proteins are classified as ____.
What is the symbol for an amino acid?
form essential structural components of the cells, provide roughly twice the energy as carbohydrates, help to maintain body temperature, and cushion organs against shock
A lipid made of a glycerol molecule with two fatty acids attached to one side and a phosphate group connecting a nonlipid group attached to the other is a ___.
You would expect a peptide bond to link ____.
two amino acids
Each amino acid differs from another in the ___.
nature of the side chain
The alpha-helix and pleated sheet are examples of ____ protein structure.
Interaction between individual polypeptide chains to form a protein complex is ____ structure.
The most abundant high-energy compound in cells is ___.
Molecules that store and process genetic information are the ___.
According to the rules of complementary base pairing in nucleic acids, cytosine would pair with the base ____.
The smallest living unit within the human body is ___.
The watery component of the cytoplasm is called ___.
The plasma membrane is composed of ____.
a bilayer of of phospholipids
with myosin, produce cell movement anchor the cytoskeleton to membrane proteins and control the consistency of cytoplasm
Microtubules have these functions: ___.
they form structural components of organelles, move chromosomes during cell division, provide a mechanism for moving organelles and provide strength
___ consists of a network of intracellular membranes with attached ribosomes.
rough endoplasmic reticulum
Most of the ATP required to power cellular operations is produced in the __.
Some cells contain large numbers of mitochondria while others have relatively few to none. This suggests that ___.
cells with large numbers of mitochondria have a high energy demand
The control center for cellular operations is the ___.
mRNA is needed to synthesize ___ in the cytoplasm.
The functional units of DNA that contain the instructions for making one or more proteins are ___.
The movement of oxygen from an area of high concentration to an area of low concentration is an example of ___.
A solution that contains a lower osmotic pressure than the cytoplasm of a cell is called __.
"'spikes" form on a blood cell when it is placed in a ___ solution.
Facilitated diffusion differs from ordinary diffusion in that ___.
the rate of molecular movement is limited by the number of available carrier molecules
Assume that the transport of a particular amino acid across the plasma membrane is observed (1) to occur only down its concentration gradient and (2) to slow when a similar amino acid is added to the extracellular fluid. The movement of the amino acid through the membrane is most likely by ___.
The intake of small membrane vesicles from the extracellular fluid is called __.
A defense cell engulfing a bacterium illustrates ___.
The stage in a cell's life cycle in which the cell performs its normal functions and prepares for division is called ___.
During mitosis, chromatids separate into daughter chromosomes during __.
During this phase of cell division, the chromosomes uncoil, the nuclear membrane forms, and cytokinesis occurs.
If an animal cell lacked centrioles, it would not be able to __.
form the mitotic spindle
During mitosis, two daughter cells form, each of which has ___.
the same number of chromosomes as the original cell