- Many mammals control their body temperature by sweating. Which property of water is most directly responsible for the ability of sweat to lower body temperature?
- A given neurotransmitter might be excitatory at one synapse and inhibitory at another synapse. (true/false)
- Water molecules have __________ than molecules of similar size, such as ammonia and methane, reflecting its capacity to absorb large amounts of heat.
- The amount of heat required to convert 1 g of any substance from the liquid to the gaseous state is defined as __________.
- The amount of heat required to change the temperature of 1 g of any substance by one °C is defined as __________.
- The absorption of human-generated CO2 by the oceans __________.-reduces the carbonate ion concentration in the oceans and threatens calcifying organisms in marine ecosystems-increases the hydrogen ion concentration in the oceans but decreases the carbonate ion concentration and threatens the livability of the oceans for calcifying organisms-increases the oceanic concentration of carbonic acid-increases the oceans' acidity and lowers pH-all answers are correct
- The phenomenon responsible for maintaining the upward movement of water through a vessel is __________
- When ice forms, the __________ are farther apart than in liquid water, allowing the ice to form an organized crystal structure and float.
- Given that release of an inhibitory neurotransmitter is altered by presynaptic facilitation, the response in the postsynaptic cell will be a (larger/smaller) degree of hyperpolarization.
- A mole of methanol (CH3OH) weighs 32 g. The number of grams of methanol that are needed to produce 1 L of a 1 millimolar solution is __________.
- Urine, at pH 6, contains __________ H+ as household bleach, at pH 13.
- Water moves up a plant because of hydrogen bonds by a process called __________.
- Sweating has a cooling effect because of water's high __________.
- You can fill a glass of water to just slightly above the rim without it spilling over the glass. What property of water best explains this phenomenon?
- Adenylate cyclase catalyzes the formation of______.
- Nonpolar molecules that cluster away from water molecules are called __________ molecules.
- Neurotransmitter receptors are found at (chemical/electrical) synapses.
- The response to a neurotransmitteris faster at (ionotropic/metabotropic)receptors.
- Whether a synapse is excitatory or inhibitory is determined by the mechanism of coupling between the neurotransmitter receptor and ion channels in the postsynaptic cell. (true/false)
- When the pH of a solution shifts from 3 to 7, the hydrogen ion concentration has changed, and __________.