Everything we've done so far part 2

Which part of the nucleus produces ribosomes?

• Nuclear envelope

• Nuclear membrane

• Nucleolus

Which of these statements is correct?

• The phospholipid has a hydrophilic head and a hydrophobic tail

• The phospholipid has a hydrophobic head and a hydrophobic tail

• The phospholipid has a hydrophobic head and a hydrophilic tail

• The phospholipid has a hydrophilic head and a hydrophilic tail

TRUE or FALSE? Ribosomes are only found on the rough endoplasmic reticulum

• True

• False

Which of these statements best describes active transport?

• Moves substances with the concentration gradient, requires energy and protein channels

• Moves substances with the concentration gradient, does not require energy or protein channels

• Moves substances against the concentration gradient, requires energy and protein channels

• Moves substances against the concentration gradient, does not require energy, but requires protein channels

TRUE or FALSE? Multipolar neurones have many dendrites

• True

• False

Which of these best describes the direction of an impulse?

• Dendrites > soma > axon terminal > axon

• Soma > dendrites > axon > axon terminal

• Dendrites > axon > soma > axon terminal

• Dendrites > soma > axon > axon terminal

What is the movement of ions from the sodium/potassium pump at resting potential?

• 3 Sodium ions out for every 2 Potassium ions in

• 3 Sodium ions in for every 2 Potassium ions out

• 2 Sodium ions out for every 3 Potassium ions in

• 2 Sodium ions in for every 3 Potassium ions out

What structure of the neurone allows the impulse to travel faster by?

• Dendrites

• Soma

• Nodes of Ranvier

• Axon

If Sodium ions enter the membrane and bring the charge to -60mV, what would happen?

• A full action potential generated

• Nothing

• A small action potential generated

What do sensory neurones do?

• Controls muscular movement

• Gathers information from the environment and sends to CNS

• Processes information and sends impulses out of the CNS