True/ false
1. Dendrites contain the nuclei, ribosomes, mitochondria, and other
structures found in most cells.
A. True
B. False
Ans: false
Difficulty: bloom’s: understand
References: neurons and glia
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
2. Neurons receive information and transmit it to other cells.
A. True
B. False
Ans: true
Difficulty: bloom’s: understand
References: neurons and glia
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
,3. Santiago ramón y cajal used special staining techniques to reveal
that the brain is composed of individual cells.
A. True
B. False
Ans: true
Difficulty: bloom’s: understand
References: neurons and glia
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
4. An efferent axon carries information away fr om a structure.
A. True
B. False
Ans: true
Difficulty: bloom’s: understand
References: neurons and glia
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
5. The greater the surface area of a dendrite, the more information it
can receive from other neurons.
A. True
B. False
Ans: true
Difficulty: bloom’s: understand
,References: neurons and glia
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
6. Neurons are distinguished from other cells by their shape.
A. True
B. False
Ans: true
Difficulty: bloom’s: understand
References: neurons and glia
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
7. The role of glial cells is to act like “glue” or scaffolding to support
the neurons.
A. True
B. False
Ans: false
Difficulty: bloom’s: understand
References: neurons and glia
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
8. Glial cells transmit information across long di stances.
A. True
B. False
,Ans: false
Difficulty: bloom’s: understand
References: neurons and glia
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
9. There are two types of glial cells that produce myelin sheath. In the
central nervous system, schwann cells fulfill this role and, in the
periphery, oligodendrocytes produce it.
A. True
B. False
Ans: false
Difficulty: bloom’s: understand
References: neurons and glia
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
10. The blood-brain barrier is made up of closely packed glial cells.
A. True
B. False
Ans: false
Difficulty: bloom’s: understand
References: the blood-brain barrier
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
,11. The difference in voltage in a resting neuron is called the resting
potential.
A. True
B. False
Ans: true
Difficulty: bloom’s: understand
References: the resting potential of the neuron
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
12. Increasing the electrical gradient for potassium will reduce the
tendency for potassium ions to exit the neuron.
A. True
B. False
Ans: true
Difficulty: bloom’s: understand
References: the resting potential of the neuron
Learning objectives: kala.biop.16.01.01 – describe neurons and glia, the
cells that constitute the nervous system.
Topics: 1.1 the cells of the nervous system
13. At the resting potential, the potassium channels are completely
closed and the sodium channels are almost closed.
A. True
B. False
Ans: false
, 14. Dr. Skinner is working in the lab measuring the voltage of neurons,
and during one condition, she tried to depolarize the neurons from -70
mv to -80 mv.
A. True
B. False
Ans: false
15. Action potentials can be produced in the dendrites of some neurons.
A. True
B. False
Ans: false
16. The two basic kinds of cells in the nervous system are .
A. Neurons and glia
B. Dendrites and axons
C. Ribosomes and lysosomes
D. Neurons and axons
Ans: a
17. Santiago ramon y cajal demonstrated that .
A. At rest, the neuron has a negative charge inside its membrane
B. Neurons are separate from one another
C. Neurons communicate at specialized junctions called synapses
D. Action potentials follow the all-or-none law
Ans: b
18. Both and shared the nobel prize for physiology or medicine in
1906.
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