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Terms in this set (25)
Upon ovulation, the oocyte is released into the...
abdominal cavity....The ruptured ovarian follicle releases an oocyte into the abdominal cavity, close to the entrance of the fallopian tube; beating of cilia draw the egg into the fallopian tube where it can be fertilized.
Name two ways plant cells differ from mitosis in animal cell
1. Plant cells lack centrioles
2. During cell division, plant cells form a cell plate
2^x + 2^x + 2^x + 2^x = 2^x+2 [or 4(2^x)]
4(2x) = 2^2(2^x)
Arrange the following species in terms of increasing atomic radius: Sr, P, Mg, Mg2+
Mg2+, P, Mg, Sr
The Ca2+ species is electronically similar to the elements in:
Group O ---> The Ca2+ species has a full outermost valence shell as do the noble gases
Which of the following is TRUE concerning a sex linked recessive disorder that is lethal in infancy
It will cause death only in males --> Females can be carriers, and pass on a diseased allele, but any males that live past infancy are dominant, so they either pass a Y or a dominant allele on.
mRNA reading frame
mRNA is read by ribosomes in the 5' to 3' direction
A certain machine produces toy cars in an infinite repeating cycle of blue, red, green, yellow and black. If consecutively producing cars are selected at random, what is the probability that two of the cars selected are red?
1/5. Production would have to begin on red and read as follows: red, green, yellow, black, blue, red. There is a 1 in 5 chance of production beginning on a red car
A certain school has 50 students assigned randomly to five distinct classes, and each student is assigned to only one class. If the members of students in the classes are consecutive, what is the probability that a given student is in one of the two largest classes.
Consecutive= 12, 11, 10, 9, 8. Top two = 23. Chance = 23 out of 50
What is the slope of y = 3x^3 when y = 24
1. Find an expression for the derivative of the function (9x^2)
2. Find the value of x that gives y = 24 ----> 24 = 3x^3......x = 2
3. Plug 2 into second derivative (allows you to see slope at that instantaneous point!!!)
4x^3 - 15x^2
First derivative of line tells you if the line is positive or negative; second derivative tells you whether line is concave up or concave down. (+ is concave up; - is concave down)
Which of the following compounds would you expect to be weakly drawn into a magnetic field?........H2 , NaCl, NO, NO2, BF3, PCl5, SO2
NO and NO2 because they have an odd number of valence electrons
The lymphatic system
transports absorbed chylomicrons to the circulatory system
What type of cell is responsible for antibody production:
By increasing the intensity of the stimulus, the action potential will...
increase in frequency
Which of the following structures focuses light on the retina:
Cornea & Lens
Chemical X is found to denature all enzymes in the synaptic cift. What are the effects on acetylcholine if chemical X is added to the cleft?
Chemical X denatures acetylcholinesterase; it will not be able to inactivate acetylcholine and prevent the continuous depolarization of the effector molecule
Which of the following is least likely to occur during oxygen debt?
buildup of pyruvate - when oxygen is debt anaerobic respiration occurs --> no pyruvate is produced.
In the kinetic molecular theory of gases, the speed of molecules is most often discussed in terms of the average speed. Which of the following statements concerning average speeds is true?
When the temperature increases, fewer molecules will move at the new average speed ---> distribution of molecular speed at a higher temp is along a wider bell curve.
What factor determines whether or not two liquids are miscible?
Alloys are mixtures of pure metals in either the liquid or solid phase. Which of the following is usually true of alloys
The melting/freezing point of an alloy will be lower than that of either of the component metals, because the new bonds are weaker
WATCH for electrolytes! Osmotic pressure = iMRT in the case of an electrolyte
When a muscle fiber is subjected to very frequent stimuli
A simple twitch is repeatedly generated
What makes for the best buffer solution
a solution in which the conjugate acid/base pair present a similar concentration
A cocktail party effect is observed when an individual hears and responds to his or her name amidst many distractions. This automatic response is coordinated by the:
reticular activating system ; the "startle response"
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