Chemistry
The process A + B → 3C has a ΔH of +142.7 J. a. Is the process endothermic or exothermic?
Endothermic
What is homeostatis?
Regulation of conditions within the body, maintaining a stable internal environment despite changes in external conditions
Name one of Newton's 3 Laws of Motion
1) object at rest stays at rest
2) F=ma
30 for every action there is an equal and opposite reaction
What is the center of an earthquake?
The epicenter
What is the smallest bone in the body?
The stapes or stirrup (in the ear)
What does mcat mean?
Heat transfer - q =mC∆t
Which of the following does not take place during cellular respiration? (a) Glycolysis, (b) Krebs Cycle (c) Calvin Cycle, (d) Electron Transport Chain
(c) Calvin Cycle
What is the branch of physics that deals with the interaction between electrically charged particles?
Electromagnetism
What is the mantle?
The layer of Earth between the crust and the core
How many bones are babies born with?
Between 270 and 300 bones
Which of the following is not a state function? (a) Energy, (b) Enthalpy, (c) Work, (d) Pressure, (e) Volume, (f) Helmholtz Free Energy
(c) Work
Which organelles are present in both prokaryotes and eukaryotes?
Ribosomes, cell membranes, or cytoplasm
A ball is released from rest above an inclined plane and bounces elastically down the plane. As the ball progresses down the plane, the time and the distance between each collision will...
Remain the same (time), and increase (distance)
What is the focus of an earthquake?
The point inside Earth where an earthquake starts
Which is the most common form of color blindness? (a) red-green color blindness, (b) blue-green color blindness, (c) blue-yellow color blindness, (d) purple-gray color blindness, (e) total color blindness
(a) red-green color blindness
Which of the following elements could have a negative heat of fusion at 1 atm pressure? (a) Hydrogen, (b) Helium, (c) Lithium, (d) Beryllium, (e) Iodine, (f) Phosphorous
(b) Helium
Which famous biologist used X-ray diffraction to take Photo 51, which revealed the double-helix structure of DNA?
Rosalind Franklin
A coin of mass m is dropped straight down from the top of a very tall building. As the coin approaches terminal speed, what is true about the net force on the coin?
The net force on the coin is downward, with a magnitude of less than mg
What is igneous rock?
A type of rock formed from cooled lava or magma
Which of the following is a steroid hormone? (A) norepinephrine, (B) oxytocin, (C) cortisol, (D) melatonin
(C) cortisol
Which substance is most soluble in water? (a) Glucose, (b) Ethanol, (c) Octanol, (d) Benzene, (e) 1-methylcyclopropene
(b) Ethanol
What is fermantation?
The process through which energy is extracted from carbohydrates
A mass m hangs from a massless spring connected to the roof of a box of mass M. When the box is held stationary, the mass-spring system oscillates vertically with angular frequency w. If the box is dropped freely under gravity, how will the angular frequency change?
W will increase
What is an estuary?
The zone where freshwater meets saltwater
The most common class of hormones is...
Peptides