Cell - ANSWER -the smallest living unit and the chemical the cell uses to store and transfer
the basic unit of function and structure for all energy within itself.
living things.
Ribosomes - ANSWER -are the sites of
Nucleus - ANSWER -contains the genetic protein synthesis in the cell
information, or DNA, and controls the activities of
the cell.
Endoplasmic reticulum (ER) - ANSWER -
Ribosomes are attached. Serves as a means for
Plasma (cell) membrane - ANSWER - transport within the cell and is made up of many
separates the contents of the cell from the channels. Rough endoplasmic reticulum named
surrounding fluid (interstitial fluid) for the fact that it has ribosomes on its surface,
serves to store and deliver the proteins made by
the attached ribosomes. Smooth ER is free of
Semipermeable membrane - ANSWER - ribosomes it performs varying functions in
refers to the selective nature of the plasma different cells, including the storage of enzymes
membrane. It contains pores and channels that and minerals and the folding of proteins, among
allow only particles of the right size or the right other things. It is thought to be involved in the
chemical nature to pass through. detoxification of chemicals and the metabolism of
fats.
Interstitial fluide - ANSWER -contains
substances such as amino acids, sugars, fatty Golgi complex - ANSWER -modifies and
acids, hormones, neurotransmitters, and salts. packages proteins destined for use in the cell or
for export from the cell.
Cytoplasm - ANSWER -is the fluid matrix
found between the plasma membrane and the Lysosomes - ANSWER -are sacs that
nucleus that acts as scaffolding for the contain strong digestive enzymes. These sacs
organelles. are responsible for digesting cell structures that
are no longer living or that are malfunctioning,
and for digesting waste.
Organelles - ANSWER -(little organs) are
specialized units in the cell that per form certain
functions. Cell wall - ANSWER -Only plant cells have
them. It is responsible for the protection of the
cell, the maintenance of the shape, and water
Mitochondria - ANSWER -are the locations balance.
for cellular respiration, that is, the conversion of
food to energy at the cellular level. The site of
energy production and of most of its ATP. Chloroplasts - ANSWER -contain
chlorophyll, which is necessary for
photosynthesis.
ATP (adenosine triphosphate) - ANSWER -
,NLN-PAX Science Test Questions and Answers Grade A+
Epithelial tissue - ANSWER -skin, the lining
Vacuoles - ANSWER -plant cells also often of organs
large ones. Which are compartments in the
cytoplasm that act as places for secretion,
excretion, and storage. Nervous tissue - ANSWER -neurons
Chromatin - ANSWER -DNA is in this Connective tissue - ANSWER -cartilage,
loosely structured form when it is not dividing blood, fat, bone
Chromosomes - ANSWER -DNA is seen in Organ - ANSWER -performs a specialized
condensed rod-shaped bodies when the cell is function in the body.
dividing
Organ system - ANSWER -made up of a
Mitosis - ANSWER -When cells divide, the number of organs working together to carry out a
appropriate amount of genetic material must be major function.
passed on to the new, or so-called daughter,
cells. In somatic (non reproductive) cells, the new
cells are identical copies of the parent cells. This Organism - ANSWER -the highest level of
is achieved by a doubling of the chromosomes organization such as the human body
prior to division. It is useful in the growth and
repair of our bodies.
Evolution - ANSWER -is a theory regarding
the processes that have produced the biological
Zygote - ANSWER -the cell created by the diversity we see today.
union of a sperm and egg contains a full set of
chromosomes, half from each parent.
Natural selection - ANSWER -the process
by which the traits that promote or enhance an
Meiosis - ANSWER -Another type of organism's ability to survive and reproduce are
division takes place in the production of passed on to following generations.
gametes. It contains half of the normal number of
chromosomes. It consists first of doubling of
chromosomes and then two subsequent
Adaptation - ANSWER -For natural
divisions. Thus the products are four daughter
selection to occur, organisms must have
cells, each with half the normal number of
variations, some of which give the individuals
chromosomes.
having them an advantage in the struggle for
survival. The struggle for survival occurs because
each generation of a species produces more
Muscle tissue - ANSWER -skeletal, offspring than can survive. In this struggle, the
cardiac, and smooth individuals best suited to their environment
survive ("survival of the fittest") and pass on the
traits to their offspring
, NLN-PAX Science Test Questions and Answers Grade A+
Fossil record - ANSWER -consists of Fungi - ANSWER -Molds, muchrooms,
remnants or traces of organisms from past yeasts, and the like
geologic ages.
Active transport - ANSWER -involves the
Vertebrates - ANSWER -animals with use of energy in the form of ATP to move
backbones substances across the membrane
Biogeography - ANSWER -the Passive transport - ANSWER -does not
geographical distribution of plants and animals require energy and makes use of didffusion and
filtration
Comparative anatomy - ANSWER -the
comparison of organisms' structures Diffusion - ANSWER -particles move in a
random manner, spreading evenly throughout an
available space and moving from regions of high
Comparative embryology - ANSWER -the concentration to those of low concentration.
comparison of organisms' embryos
Osmosis - ANSWER -A specific type of
Molecular biology - ANSWER -biology at diffusion is that of water. Water moves from an
the molecular level area of high water concentration (or low
concentration) to an area of low water
concentration (high particle concentration
Taxonomy - ANSWER -the study of
scientific classification. Species are grouped
according to their similarities and differences. Isotonic - ANSWER -When the solute
concentration of the water is the same as that
King Phillip Came Over For Good Soup inside the cell. Thus, the amount of water that
Kingdom, Phylum, Class, Order, Family, Genus, leaves the cell and the amount that enters it are
Species equal.
Kingdom - ANSWER -animal, plant, Hypertonic - ANSWER -When the solute is
monera, protist, and fungi more concentrated outside the cell than inside it.
Water leaves the cell due to osmosis; it moves
from the high-water/low-particle concentration to
Monera - ANSWER -Bacteria low-water/high-particle concentration. As a result,
the cell shrinks.
Protist - ANSWER -Protozoa, algae, and
some molds Hypotonic - ANSWER -If the solute