BIOL 220 M3

If radius doubles, what happens to area?

it increases by a factor of 4

If radius increases by a factor of N, what happens to area?

It increases by a factor of N squared

What happens to pCO2 levels in your body when you increase aerobic metabolic activity?

pCO2 in your working tissues, blood and alveoli will increase. Then minute ventilation increases, causing lung and blood pCO2 to decrease

If a cylinder doubles in every dimension, what happens to volume?

It increases by a factor of 8

If an organism’s dimensions scales up by a factor of 3, what happens to surface area / volume?

Increases by a factor of 3

What does it mean for an object to have a low thermal conductivity?

There is minimal conductive flux in thermal energy between inside and outside the object, so despite driving force going into or out of the object, the object is able to maintain their temperature

is enzyme affinity lower when the sea temperature is low?

Yes due to less kinetic energy of water molecules, thus less collisions with the enzyme’s molecules

Why are human bodies warmer at the day’s end compared to during the day?

the human does not need to use as much metabolic energy to maintain their internal body temperature when its surrounding environment is warm. The perlonged exposure of sunlight allows radiation, warming the human's internal body temperature

Does water have high thermal conductivity than air

Yes, where when endotherms are in water, their body temperature will flux into the water

How do humans cool their body with water?

When humans sweat, the sweat contains the human's thermal energy and when the sweat evaporates the human's thermal energy also evaporates

Function of Carbonic anhydrase

enzyme that accelerates CO2 transport and rapidly catalyzes CO2 and water into HCO3- and H+

How does the perception of different colors occur by the naked eye?

The stimulation of a combination of cones allows distinct color absorption combinations

Difference between rods and cones

Rods allow peripheral vision, cones allow color vision

When carbonic anhydrase enters the cerebrospinal fluid, what happens to the pCO2?

The capillary pCO2 increases, causing cerebrospinal pCO2 to increase