Biology Semester 2 Study Guide

What is occurring in the diagram?

• Negatively charged proteins are leaving the neuron

• The myelin coat has broken down, allowing ions to freely cross the plasma membrane

• Na+ ions are entering the neuron

• K+ ions are entering the neuron

How does the skin regulate body temperature?

• by producing vitamin D

• by regulating fat content in the epidermis

• by retaining water

• by increasing sweat production

Which process causes the diaphragm to move back up?

• cellular respiration

• inspiration

• internal respiration

• exhalation

Based on the estimates from the table, how much urea is absorbed by the kidneys?

• 0.50 g/min

• 23.4 g/day

• 50.0 g/day

• 46.8 g/day

Which represents the correct sequence as sound waves travel in the ear to trigger an impulse?

• hair cells, auditory canal, cochlea, malleus

• tympanum, bones in the middle of the ear, cochlea, hair cells

• cochlea, incus, stape, eardrum

• auditory canal, tympanum, hair cells, cochlea

Infer why proteins are not removed by nephrons.

• Proteins are reabsorbed by nephrons

• Proteins cannot be filtered

• collecting ducts are too small

• proteins never enter the nephron

What is the difference between rods and cones?

• Rods detect low light, cones provide information about color.

• Rods detect bright light, cones provide information about low light.

• Rods detect color, cones provide information about low light.

• Rods detect color, cones provide information about bright light.

Which of these terms do not belong in the group?

• autonomic nervous system

• central nervous system

• somatic nervous system

Some rides at amusement parks cause a person to become dizzy when the ride stops.

Which structure in the diagram is most likely involved with the dizzy feeling?

• D

• A

• B

• C

Which nervous system is the hypothalamus most involved in regulation?

• autonomic

• voluntary

• sensory

• peripheral