1. Take Practice Test: On a separate sheet of paper write down numbers through Indicate which ones you got correct with + or - . Use the grade breakdown to check your score.

2. This is the Benchmark Grade Breakdown
Grade # Correct Points Earned A B C D F

3. Electrochemical Impulse & Neurons
Standard 9D&9E
Electrochemical Impulse & Neurons

4. 1. (9d) Identify the cell below
Cell Body B. Axon
C. Dendrite D. Neuron

5. 2. (9d) What is the function of the cerebrum?
controls conscious and voluntary activities of the body.
controls heart rate.
controls blood pressure.
controls breathing.

6. 3. (9d)What is the function of the central nervous system?
To relay messages
To process information
To analyze information
all of the above

7. 4. (9e) Neurons are categorized by the
direction in which they carry impulse.
B. amount of metabolic activity takes place.
C. number of impulses or dendrites that branch out.

8. 5. (9d) What is the function of the neurotransmitters?
to transmit nerve impulses through the dendrites.
to stimulate the production of epinephrine.
to transmit nerve impulses across synapses.
none of the above

9. 6. (9e) Sensory receptors that are sensitive to chemicals are found in the
A. Skin,body core & hypothalamus.
B. Skin, skeletal muscles & ears
C. Eyes.
D. Nose and taste buds.

10. 7. (9e) In the reflex arc or action illustrated in the diagram below
7. (9e) In the reflex arc or action illustrated in the diagram below. What does X represent?
Sensory Neuron
Motor Neuron
Interneuron
Parasympathetic Nervous System X

11. 8. 9d Which of the following best describes the direction and sequence of movement of a traveling nerve impulse?
A. axon,cell body,dendrites,synapse
B. dendrites,cell body,axon,synapse
C. dendrites,axon,cell body,synapse
D. Cell body,dendrites,synapse,axon

12. A B C 9. (9e) “C” represents which type of nerve?
C. Interneuron D.All of the above
Sensory Neuron B. Motor Neuron

13. Endocrine Feedback System
Standard 9B & 9C
Endocrine Feedback System

14. 10. 9B Which system coordinates the body’s response to changes in its internal and external environment?
A. Endocrine System
B. Nervous System
C. Lymphatic System
D. Both A & B

15. 11. (9c) Which gland fails to produce enough of its hormone in the disease diabetes mellitus?
adrenal
hypothalamus
pancreas
parathyroid

16. 12. 9C Feedback inhibition means that an increase in a substances will
A. Stop production of another substance
B. Increase the production of another substances
C. Increase production of that substance
D. Decrease production of that substance

17. 13. 9C Which process enables the body to maintain a stable body temp?
A. The parasympathetic nervous system
B. The sumpathetic nervous system
C. Feedback inhibition
D. Action potential

18. 14. 9B The ability to move your right hand is controlled by the
A. Left hemisphere of the cerebrum
B. Right hemisphere of the cerebrum
C. Both the left and right hemisphere of the cerebrum
D. Neither hemisphere of the cerebrum

19. 15.9C Which system in a human is responsible for producing hormones from glands, to regulate metabolism, growth, and sexual development?
A. Circulatory
B. Digestive
C. Endocrine
D. Respiratory

20. Nutrients & Waste Removal
Standard 9A
Nutrients & Waste Removal

21. 16. (9a) The ( ) is not necessary for removing urea from the body.
Circulatory system
liver
heart
kidney

22. 17. (9a) Which of the following is the correct order of nutrient (food) flow from the mouth to the cells?
Mouth, esophagus, small intestine, stomach, cells & bloodstream.
Mouth, trachea, esophagus, stomach, large intestine, small intestine & colon.
Mouth, stomach, large intestine, bloodstream & cells.
Mouth, esophagus, stomach, small intestine, bloodstream & cells.

23. 18. (9a) Carbon dioxide is Not removed from the the body through which of the following?
Circulatory system
Lungs
Excretory System
kidney

24. Viruses & Bacteria 1st Line of Defense
Standard 10A & 10D
Viruses & Bacteria
1st Line of Defense

25. Antigens Amylase Lysozymes Lysosomes
19. (10a) ____ is an enzyme found on the skin, in the saliva and in tears that kills bacteria by breaking down their cell wall.
Antigens
Amylase
Lysozymes
Lysosomes

26. Production of antibodies Production of lysozymes
20. (10a) Which of the following is not a way that the skin acts as a nonspecific defense against disease?
Production of sweat
Forms an outer layer
Production of antibodies
Production of lysozymes

27. 21. (10a) The body’s first line of defense against disease is ____?
Killer T Cells
Antibodies
The skin
Interferon
Roving macrophages

28. 22. (10d) Unlike lytic viruses, lysogenic viruses do NOT
Injected their genetic material into the host cell.
Enter the lytic cycle.
Lyse the host cell right away.
Infect host cells.

29. 23. (10d) Antibiotics are used to treat infectious diseases caused by
fungi
viruses
bacteria
Bacteria & viruses

30. 24. (10d) Interferon is a natural chemical used primarily to fight ___ infections.
fungal
viral
bacterial
Bacterial & viral

31. 25. (10d) The cell structure below is a
Plant Cell
Virus
Animal Cell
Bacteriophage
Bacterial Cell

32. The Lines of Defense Against Viruses & Bacteria
Standard 10B & 10C
The Lines of Defense Against Viruses & Bacteria

33. 26. (10c) A vaccine contains _____
Antibodies
Dying or weak viruses
antibiotics
Fully potent fungus tissue

34. 27. (10b) Which of the following is the function of antibodies in the immune response?
Antibodies produce antibiotics.
Antibodies attach to antigens and attract phagocytes which engulf & destroy the antigen.
Antibodies produce interferon.

35. 28. (10c) An infectious disease is one caused by
Heredity
Materials in the environment
Pathogens
Hemophilia E

36. 29. (10c) A person who has received a vaccine against polio
Is able to produce antibodies against polio.
Has polio antibodies in the blood.
Has antipolio killer T cells in blood.
Is more susceptible to the polio virus than someone who has not had the vaccine.

37. HIV & The Immune Response
Standard 10E & 10F
HIV & The Immune Response

38. 30. (10f) Cells that are directly responsible for the production of antibodies are
Red Blood Cells
Phagocytes
T-cells
B-cells

39. 31. (10e) HIV weakens the immune system by killing
Antibodies
B Cells
Helper T Cells
Killer T Cells

40. 32. (10e) HIV spreads through the body by
Replicating inside the cells of the immune system.
Preventing the body from producing antibodies against HIV.
Causing the body to have asthma attacks.
Strengthening the immune system.

41. 33. (10e) Zidovudine (AZT) is a drug that stops an enzyme that HIV needs to multiply. What effect would you expect AZT to have on the number of T cells in an HIV-infected person’s blood and immune system?
AZT should increase T cells.
AZT should decrease T cells.
AZT has no effect on T cells because it decreases plasma cells.

42. 34. (10e) White blood cells that bind to infected cells and secrete chemicals that disrupt the cell membranes of these cells are termed
Helper T-cells
Killer T-cells
Macrophages
plasma Cells