SUMMATIVE TEST 2-WRITTEN TASK (25 POINTS):
I. Direction: Choose the letter of the correct answer. Write your answer in your answer sheet.
________1. What system of the body is responsible for the transmission of
signal from one part of the body to another?
A. skeletal system B. nervous system
C. muscular system D. cardiovascular system
_____ 2. Which of the following does NOT belong to the group?
A. brain B. heart C. nerve D. spinal cord
_____ 3. Which part of the nervous system serves as the command center
of the body?
A. brain B. heart C. nerve D. spinal cord
_____ 4. Which part of the nervous system serves as the channel that
connects the brain to the different parts of the body?
A. brain B. heart C. nerve D. spinal cord
_____ 5. Which part of the nervous system has the special ability to carry
signals or impulses?
A. brain B. heart C. nerve D. spinal cord
II. TRUE or FALSE .Write True if the statement about the nervous system is correct and False if is incorrect. Write your answer in your answer sheet
_____6. Our brain has so much blood vessels that can circle our planet four
times.
_____7. Our brain is composed of 75% water.
_____8. A human brain has approximately 100 million neurons knowns as gray
matter.
_____9. A typical human brain is about 3 pounds.
_____10. Foods such as nuts, fishes, and broccoli can keep our brain healthy
III. Indicate whether the following parts of the Nervous System are part of the Central Nervous System (CNS) or Peripheral Nervous System or (PNS). Write your answer in your answer sheet
_____11. Brain ____16. Parasympathetic
_____12. Spinal Nerves ____17. Cerebrum
_____13. Cerebellum ____18. Spinal Cord
_____14. Cranial Nerve Fibers ____19. Sympathetic Nervous System
_____15. Brainstem ____20. Somatic Nervous System
IV. Indicate whether the following description are performed by Cerebellum, Cerebrum and Brainstem. Write your answer in your answer sheet
_____21. It controls activity and thought.
_____22. It controls our breathing.
_____23. It controls our posture , balance and coordination.
_____24. It controls our heart rate and blood pressure.
_____25. It controls our rapid eye movement.PERFORMANCE TASK (25 POINTS)
I. Matching Type. Directions: Match the description in Column A with the correct term in Column B. Write your answer in your answer sheet.
Column A Column B
26. Double stranded a. mRNA
27. Has Uracil as a base b. tRNA
28. Forms the structural c. rRNA
component of the d. RNA
ribosomes e. DNA
29. Picks up amino acid in the cytoplasm to the ribosomes
30. Copies the DNA in the nucleus and carries the
information to the ribosomes
in the cytoplasm
II. Fact or Bluff. Write FACT if the statement about DNA and RNA is true and BLUFF if it is false. Write your answer in your answer sheet.
___31. DNA molecules make proteins which the body needs in order to
grow.
___32. Most of the structure in a cell are assembled from butane
molecules.
___33. Similar to DNA, RNA is also made up of molecules known as
nucleotides.
___34.Nucleic acids are high-molecular weight polymers composed of
chain nucleotides.
___35. Sugar are large molecules made up of amino acid called
polypeptides.
___36. Translation is the second step in the gene expression wherein the
codons (three nitrogen bases) are translated.
___37. Protein synthesis is the process by which polypeptide chains are
constructed from the coded combinations of single amino acids
within the cell.
___38. The genetic code tells the relationship between the DNA base
sequences and the amino acid sequence in proteins.
___39. Polymer is a massive molecule or macromolecule composed of
many continual sub-units.
___40. The AUG codon (Methionine) is found at the beginning of every mRNA and indicates the start of a protein.
III. Fill in the missing pair for each nucleotides to form a base pair.
Nucleotides : DNA Replication(Base Pair)
41. Adenine :
42. Thymine :
43. Cytosine :
44. Guanine :
