science 10 Quarter 3 Diagnostic Test

1. Diagnostic test in Science 10 Quarter 3
Name:______________________________ Section:___________ Date:__________ Score:_____
TEST 1. Read the questions carefully and choose the letter of the best answer. Write your answer in your
answer sheet.
1. Which of the following make up the central nervous system of vertebrates?
A. Brain and spinal cord C. Brain, spinal cord and autonomic nerves
B. Brain, spinal cord, and all the organs that they control D. Brain, spinal cord and the nerves connected
to them directly.
2.How does the brain receive information from the receptor?
A. The brain receives the information through the sensory neurons that transmit the message from one
neuron to another.
B. The message is then sent to the impulse by the sensory neurons.
C. The message from the brain is relayed by the motor neurons that receive the message from the
neurons.
D. The message coming from the brain is sent through the motor neurons
3. What does the brain do as soon as it receives the information?
A. As soon as the brain receives the information, it processes the message and come up with a response to
be sent through the neurons.
B. As soon as the brain receives the information; it transmits impulses from the receptor
C.As soon as the brain receives the information, it is sent by the sensory neurons to the brain.
D. As soon as the brain receives the information, then processes the information and sends a response
through the motor neurons to the organ, gland or muscles.
4. Which of the following major divisions that serves as the main processing center for the entire nervous
system?
A. Central Nervous System B. Peripheral Nervous System C. Somatic Nervous System D. Autonomic
Nervous System
5. Why is it important to maintain homeostasis in the body?
A. It is important to maintain homeostasis in the body to have a healthy lifestyle.
B. It is important to maintain homeostasis in the body to ensure balance and proper bodily functions in
order to survive.
C. It is important to maintain homeostasis in the body to prevent diseases in the respiratory system.
D. It is important to maintain homeostasis in the body so that diseases can easily be detected.
6. Which of the following pair is correctly matched?
a. Cerebrum; reasoning and thinking c. Temporal lobe; judgement
b. Frontal lobe; words d. Parietal lobe; controls attention
7. What part of the Central Nervous System that serves as a channel for signals between the brain and the
rest of the body and controls simple musculoskeletal reflexes without input from the brain?
A. Brain B. Spinal cord c. Cerebrum d .Cerebellum
8. How does your nervous system work?
A. It secretes chemicals/hormones which control various body processes. C. it transports blood to all
parts of the body.
B. It acts as framework of the body. D. It relays messages back and forth from the brain to various parts of
the body.
10.Which of the following glands in the body controls the functions of both testes and the ovaries?
A. Adrenal gland B. Parathyroid Gland C. Thyroid Gland d. Pituitary Gland
11 How many billions of neurons in one part of the brain alone?
a. 12 to 14 billion of neurons b. 12 to 15 billion of neurons c. 12 to 18 billion of neurons d. 12 to 20
billion of neurons
12. What part of the Female Reproduction System that serves as passageway of eggs from the ovary to the
uterus and site of egg fertilization?
A. Ovary B. Uterus c. Oviduct d. Vagina

2. 13. Which of the following stages of development that involves that involves the onset of sexual maturity
and the ability to reproduce?
A. Puberty B. Adolescence c. Young Adult d. Adult
14.All of the following are various systems of the body. Which system involved in sexual reproduction?
A. Nervous System b. Reproductive System c. Endocrine System d. Digestive System
15.Glands provide liquid in which sperm can swim. What gland of the Male Reproductive System that
secretes a slightly alkaline milky fluid that is discharged as part of the semen?
A. .Seminal vesicle B. Prostate Gland C. Bulbourethral Gland d. Urethral Gland
16.All of the following are the functions of the female reproductive system EXCEPT
A. Produces female sex cells C. Nurtures the development of and provides nourishment for the new
individual
B. Receives sperm cells from the male D.Produces male sex cells.
17.What part of the Male Reproductive System that produces sperm cells?
A. Testis B. Penis c. Scrotum D. Vas deferens
18 .Which of the following male reproductive glands that secretes a thick and clear mucus that lubricates
and neutralizes the any trace of acidic urine in the urethra?
A. Seminal vesicle B. Prostate Gland C. Bulbourethral Gland d. Urethral Gland
19. All of the following are parts of the Female Reproductive System. Which part that serves as sites of egg
implantation and where the fertilized egg develops?
A. Ovary B. Uterus C. Oviduct D. Vagina
20.Which part of the female reproductive system where fertilized egg develops?
A.fallopian tube B .ovary C. uterus d. Vagina
22.How long does a regular menstruation cycle occur?
A.28 days B. 60 days C. 5 days D. 1 Day
23. If a person’s blood sugar level becomes unstable, what glands might be involved in the problem?
a. adrenal gland b. pancreas c. ovaries d. thyroid
24. How important is the thymus gland in keeping your body free from diseases?
a. It enables the body to produce certain antibodies. c. It regulates the blood sugar level
b. It stimulates the growth and controls the functions of the glands. d. It prepares the body for action and
controls the heart rate.
25.Feedback mechanism _______.
A.is the process through which the level of one substance influences the level of another substance
B.plays an important role in both male and female reproductive system
C.controls the functions of both the testes and the ovaries
D.controls the menstrual cycle
26.A negative feedback ________________________.
A.is the state reached when each part of the body functions in equilibrium with other parts
B.is attained through the regulation of the bodily functions by the endocrine and nervous systems
C.affects the production of hormones in the menstrual cycle
D.keeps the reproductive system properly functioning
27. Why is pituitary called the master gland of the body?
a.It enables the body to produce certain antibodies. c. It regulates the blood sugar level
b. It stimulates the growth and controls the functions of the glands. d. It prepares the body for action and
controls the heart rate.
28. A baby receives genetic information from ?
A. the egg only B. the egg and the sperm C. the sperm only D. the embryo
29. According to his father, Uriel would be a bright student because of having a wider forehead. What
could be inferred from this belief of the father?
A .The cerebrum is the largest part of the brain associated with thoughts
B. The cerebellum is the seat of intelligence
C. Hypothalamus is associated with emotions
D. The cerebrum coordinates the function of all parts

3. The following is the base sequence on one strand of a DNA molecule: A A T G C C A G T G G T (items
30-32 )
30.If this strand is replicated, which of the following is the complementary strand that is produced?
A.)TCGTCCGTCTAG B.) AGCAGGCAGGGT C.) TTACGGTCACCA D.) UCGUCCUCUAGA
31.If transcribed into an mRNA, what would be the resulting strand?
A.) UUACGGUCACCA B.) AGCAGGAGATC C.) AGCAGGCAGAUC D.) TCGTCCGTCTAG
32.During translation, the tRNA sequence of the nucleotides arranged linearly is ____ .
A.)TCGTCCGTCTAG B.) AAUGCCAGUGGU C.) AGCAGGCAGAUC D.) UCCGUCCGUCUAG
33.Which of the following statements about DNA and RNA is incorrect?
A.Both have cytosine as a base C. The DNA copies specific instructions from the RNA
B. Both are composed of a nitrogenous D. DNA is a double helix while RNA is a single –stranded helix
34.RNA makes protein through_____.
A .repair B. replication C. Transcription d. Translation
35.Base sequence of one strand AATTCG has a complimentary base strand of _____.
A.)AATTCG B.) TTAACG C) TTAAGC D.) TTGGAC
36.Which type of RNA carries genetic information from DNA to the ribosome?
A.messenger RNA B. mitochondrial RNA C. ribosomal RNA D. transfer RNA
37.The DNA has two chains held together by _____.
A.Covalent bonds B. Hydrogen Bonds C. Ionic bonds d. Polypeptide Bonds
38.In an RNA ,adenine pairs with ____.
A. cytosine B. Guanine C. Thymine D. Uracil
39. Why must a cell produce proteins?
A.The flow of genetic information is from DNA to mRNA to protein.
B. Cells need to make identical copies of their genetic material for growth and repair.
C.The new cell may not have the capability to function properly.
D. Cells’ gene is a segment of DNA located in a chromosome.
40.Which type of chromosome structure mutation results in an excess pair of chromosomes?
A. deletion B. duplication C. Inversion D. Translocation
41.When DNA from two different species are joined together, it is called _____.
A. viral DNA B. Organisms DNA c. Recombinant DNA d. Plasmid DNA
42.A mutation is a change in the base sequence of DNA, it may affect only one gene or _____.
A.non-sex cells only are not hereditary. C. gene code for proteins
B. they may affect whole chromosomes. D. transmitting these changes in the offspring
43.What do we call the “Blueprint of life”?
A. RNA B. DNA c. Cells D. Genes
44.If the DNA polymerase is in contact with cytosine in the parent strand, what complimentary base will
be added to the daughter strand?
A.adenine B. Guanine C. Thymine D. Uracil
45.How can we tell if an individual possibly has a genetic disorder?
A.Heritable genetic disorders are due to mutations found in the germ line.
B.The effect of multiple genes in combination with lifestyle and environmental factors.
C.Result from a single mutation in a gene.
D.Genetic disorder maybe complex, multi-factorial, or polygenic causes.
46. .The table below shows the sequence of the amino acids of different organism. Which of the organism
is more related to human?
A.Kangaroo, because the first two set of their amino acids is the same with that of human
B. Gorilla, because only one set of amino acid differ to that of human

4. C.Chimpanzee, because based on presented arrangement of their amino acid it is almost the same with
that of human
D.Rhesus monkey because their first and last set of amino acids is similar that of human.
47.A specific protein synthesized is the translated message contained in the _____.
A.DNA b. Ribosomes c. Nucleus d. sugar and phosphate sequence
48.Why do organisms compete for food and space?
A.In order to survive b. in order to reproduce c. in order to adapt the environment d. in order to know
who is the fittest
49.According to evolutionist, which is the best test to show the relatedness of two organisms?
A. Similarity in development C. Similarity in courting behavior
B.Similarity in structure D. Similarity in genomic DNA
50.Which of the following statements explains Lamarck’s Theory of Use and Disuse?
A.Body structures develop because they are used extensively.
B.Body structures develop because they are not in use.
C.Body structures because of competition
D. Body structures develop because of mutation.