"rest and digest"sexual arousal, salivation, lacrimation (tears), urination, digestion and defecation
Pancreas is a component of what system
After passing through the stomach food continues into what?
During mitosis/cell division Spindle fibers are associated with
Breathing properly requires the presence ofwhat compound that affects surface tensionof alveoli in the lungs?
What are function of the kidneys
3 Characteristic or property of a gas
A. VolumeB. MassC. Pressure
The combination of sodium and chlorine to form NaCL is considered a/an ___ bond.
What is the job of Nucleic Acid in a cell?
To store and transmit hereditary information
SIX parts of a scientific argument?
data collection and experimentation
Introns are sequences that interrupt open reading frames, and they are removed after transcription.
Exons are the protein-coding regions that are preserved in the transcript
bacterial genes that are controlled by a single controller sequence
are alternative forms of a gene
describes a process or reaction in which the system absorbs energy from its surroundings in the form of heat.
"outside heating") describes a process or reaction that releases energy from the system, usually in the form of heat,
both the skin and nervous systems originate from this layer
central layers of the body: bone, muscle, kidneys and heart
digestive organs and the lungs
continuous with nuclear membrane and does not contain dna
membranous sac originating from the endoplasmic reticulum, does not contain and DNA or protein synthesis.
lysosomes contains enzymes to break down waste molecules; it is not involved in protein synthesis.
contain DNA and protein synthesis machinery.
energy of location
energy of motion
contains heads that contact actin and pull the actin fibres together in an ATP- dependant mechanism that causes muscle contration
are formed by actin and myosin
is an atp dependent molecule that walks along microtubules causing them to moves but it is not part of the sarcomere.
fibrous protein of hair and nails and is not part of the sarcomere.
protein of the nuclear envelope not part of the sarcomere.
requires an organic source of carbon
chemo implies that redox reaction using minerals are the origin of the energy
sunlight is used to perform photosynthesis. basis of the energy cycle.
(Gk: photo = light, hetero = (an)other, troph = nourishment) are heterotrophic phototrophs—that is, they are organisms that use light for energy, but cannot use carbon dioxide as their sole carbon source.
Fossils or organisms that show the intermediate states between an ancestral form and that of its descendants are referred to as transitional forms
forming a very small remnant of something that was once needed but no longer anymore
monomer is a molecule that may bind chemically to other molecules to form a polymer. The term "monomeric protein" may also be used to describe one of the proteins making up a multiprotein complex
concentraion of hydrogen ions in water with a PH of 7
formula for pH is -log (H+) a ph of 7 translates to 10 -7 M
Mitosis? cellular repoduction cells
Mitosis produces two daughter cells that are identical to the parent cell. If the parent cell is haploid (N), then the daughter cells will be haploid.
this type of division allows multicellular organizms to grow and repair damaged tissue.
haploid cells have one complete set of chromosomes. in animals, gametes (sperm and eggs) are haploids.
diploid cells (2N) have two complete sets of chromosomes. the body cells of animals are diploid.
Meiosis produces daughter cells that have one half the number of chromosomes as the parent cell.
enables organisms to reproduce sexually.
meiosis involves two divisions producing a total of four daughter cells.
what are Gametes(sperm and eggs)
what is a chromatid?
single DNA molecule
what is a centromere
point where two chromatid attach.
chromosomes are not visible because they're uncoiled.
Mitosis (prophase) Coil
the chromosomes begin to coil
spindle apparatus begins to form as centrosomes move apart.
the nuclear membrane disintegrates
kinetochores form on the chromosomes
kinetochore microtubules attatch to the chromosomes.
Mitosis (metaphase) Align
The chromosomes become aligned on a plane.
Mitosis (anaphase) separate
the chromatids separate (number of chromosomes doubles.
Mitosis (telophase) uncoil
the nuclear membrane reappears.
spindle apparatus breaks down
the cell divids into two.
G1 Interphase of mitosis
the chromosomes have one chromatid
the chromosomes are replicated. each one has two sister chromatids.
Meiosis (prophase 1)
Homologous chromosomes become paired.
Meiosis (Metaphase 1)
homologous pairs become aligned in the center of the cell.
Meiosis (anaphase 1)
homologous chromosomes seperate
Meiosis telophase 1
Absent in some species
similar to interphase except DNA synthesis does not occur