ap bio ch 48 questions

ap bio ch 48 questions - 1 Which would be present in an...

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1. Which would be present in an animal with a nerve net? a. bilateral symmetry b. neurons c. fused ganglia d. cephalization e. centralization 2. What is the difference between a neuron and a nerve? a. One has sensory functions, the other motor. b. Nerves are found only in the central nervous system. c. They consist of different numbers of cells. d. Neurons are made of white matter, nerves of gray matter. e. Neurons are found only in vertebrates. 3. A cluster of nerve cell bodies outside the central nervous system is referred to as a(n) _____. a. cranial nerve b. nucleus c. association area d. ganglion e. none of the above 4. A neuron that transmits an impulse to the central nervous system after the neuron is stimulated by the environment is called a(n) _____. a. sensory neuron b. motor neuron c. interneuron d. autonomic neuron e. Schwann cell 5. Which of the following is specifically a part or a function of the central nervous system? a. sensory receptors b. sensory input c. integration d. motor output e. effectors 6. Effectors include _____. a. endocrine glands b. touch receptors c. the motor cortex d. the retina e. the white part of the spinal cord 7. Which of the following describes a withdrawal reflex response? a. It requires a sensory neuron, an interneuron, and motor nerves. b. It results in the limb moving toward the midline of the body. c. Pain receptors in the skin send a message to the brain to initiate motor movement, away from a painful stimulus. d. It is a conscious response to painful stimuli. e. The first two answers are correct. 8. The part of a neuron that carries nerve impulses toward the cell body is called _____. a. a nerve b. white matter c. a neurotransmitter d. a dendrite e. an axon 9. Schwann cells make up the _____. a. neurons b. nodes of Ranvier c. myelin sheath d. radial glia e. neurotransmitter secretory vesicles 10. Cells that provide metabolic and structural support to the neurons include _____. a. afferent and efferent neurons b. astrocytes c. oligodendrocytes and Schwann cells d. dendrites e. astrocytes, oligodendrocytes, and Schwann cells 11. Which one of the following statements is not true about the resting potential? a.
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ap bio ch 48 questions - 1 Which would be present in an...

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