Give the correct biological term for each description, indicate whether descriptions apply to A, B, Both, or None, and identify parts of a neuron.

here are the answers to Questions 1.2, 1.3, and 1.4:

1.2 Give the correct biological term for each of the following descriptions.

• 1.2.1 Maculae (or Otolith organs)
• 1.2.2 Abscisic acid
• 1.2.3 Synapse
• 1.2.4 Tropism
• 1.2.5 Apical dominance
• 1.2.6 Spinal reflex
• 1.2.7 Cone cells
• 1.2.8 Hypothalamus
• 1.2.9 Vasodilation

1.3 Indicate whether each of the descriptions in COLUMN I applies to A ONLY, B ONLY, BOTH A AND B or NONE of the items in COLUMN II.

• 1.3.1 NONE
• 1.3.2 BOTH A AND B
• 1.3.3 A ONLY

1.4 The diagram below shows a type of neuron.

• 1.4.1 The type of neuron shown is a sensory neuron.

• 1.4.2 Identify part:

  • a) B: Nucleus
  • b) C: Cell body (or Soma)
  • c) D: Axon terminal (or Synaptic knob)

• 1.4.3 Give ONE function of part:

  • a) A (Myelin sheath): Insulates the axon / Speeds up nerve impulse transmission.
  • b) E (Axon): Transmits nerve impulses away from the cell body.

• 1.4.4 The impulse travels from X to Y.