-
During development, the ectoderm will develop into the:
- epidermis
- skin
- hair
- epithelium
- inner ear
- lens
- nervous system
-
During development, the endoderm will develop into the:
- pharynx
- linings of the respiratory and digestive tracts
- major glands (pancreas and liver)
-
During development, the mesoderm will develop into the:
- circulatory system
- muscular and skeletal system
- gonads
- covering of internal organs
- kidneys
-
The umbilical cord develops from the:
- yolk sac (site of early blood vessel development; blood vessels transfer food to the developing embryo)
- allantois (outpocketing of the gut that contains many blood vessels)
-
The placenta is formed when:
the chorion fuses to the fuses to the uterine walls
-
In six turns, the Calvin Cycle produces:
6CO2+6RBP-->12 PGAL
The 12PGAL then recombine to form 6RBP and 1 molecule of glucose, the net product
-
Sulfur is sometimes found in protein, but never in:
nucleic acid
-
Plant spores are haploid. So a spore with 18 chromosomes would mean that:
The diploid number is 36
-
The cytoskeleton does NOT make up the cell wall.
-
Disruptive selection
When selection acts to eliminate the intermediate type and favor the extremes
-
Stabilizing selection
When the extremes are eliminated and the intermediate is increased.
-
The cerebral cortex (forebrain)
- Processes and integrates sensory input and motor responses
- Important for memory and creative thought
-
Thalamus (forebrain)
Relay and integration center for the spinal cord and cerebral cortex
-
Hypothalamus
- Controls visceral functions such as hunger, thirst, sex drive, water balance, blood pressure, and temperature regulation.
- Plays an important role in the endocrine system
-
Midbrain
- -relay center for visual and auditory impulses
- -important role in motor control
-
-
cerebellum
important in balance, coordination, and timing of rapid movements
-
pons
enables communication between the cortex and cerebellum
-
medulla
controls vital functions such as breathing, heart rate, GI activity
-
brainstem
midbrain, pons, medulla
-
Sensory information enters the spinal cord through the dorsal horn
Motor information exits the spinal cord through the ventral horn
-
posterior pituitary releases:
oxytocin and ADH
-
anterior pituitary releases:
-
Thyroid
- Thyroid hormones
- Calcitonin
-
-
cardiac muscle
- striated
- 1-2 nuclei
- innervated by the ANS
- requires Ca2+
- involuntary contraction
-
Plant reproduction
- Stamen - male organ has anther on top which produces pollen
- Stigma - female organ, site of pollen deposition
-
Pioneer organism
first species to inhabit an area that was previously devoid of life. Typically must be able to live in harsh condition. Example: lichens
-
Area of kidney with lowest solute concentration:
cortex (the filtrate moves to the higher solute concentration and thus water is reabsorbed)
-
Two species occupying one niche will:
always compete for at least one resource
-
Resting membrane potential depends on:
- active transport
- selective permeability
- Na/K pump
- differential distribution of ions across the axon membrane
-
Chlorophyll has a magnesium ion complexed in the middle of it.
|
|