Plus One Zoology Model Question Paper 3

Kerala Plus One Zoology Model Question Paper 3

Time : 1 Hours
Cool off time : 10 Minutes
Maximum : 30 Scores

General Instructions to candidates

  • There is a ‘cool off time’ of 10 minutes each for Botany and Zoology in addition to the writing time of 1 hour each. Further there is a ‘ 5 minutes’ ‘preparatory time’ at the end of the Botany Examination and before the commencement of the Zoology Examination.
  • Use the ‘cool off time’ to get familiar with the questions and to plan your answers.
  • Read the instructions carefully.
  • Read questions carefully before you answering.
  • Calculations, figures and graphs should be shown in the answer sheet itself.
  • Malayalam version of the questions is also provied.
  • Give equations wherever necessary.
  • Electronic devices except non programmable calculators are not allowed in the Examination Hall.

Plus One Zoology Model Question Papers Paper 1

QUESTIONS

Questions 1-3. Answers all questions. Each question carries 1 score.
Plus One Zoology Model Question Papers Paper 3 1

Question 1.
Rearrange the following in the correct taxo¬nomic hierarchical sequence :
Plus One Zoology Model Question Papers Paper 3 2

Question 2.
Note the relationship between the first two words and suggest words for the fourth place.
Collection of living plants : Botanical garden.
Animals kept in protected environment : ……………….
Plus One Zoology Model Question Papers Paper 3 3

Question 3.
After completing a project study based on diversity of spiders, the specimens were intended to be stored for future reference. Select a suitable taxonomical aid from the following for the preservation of specimens.
a. Herbarium
b. Museum
c. Zoological park
d. Sanctuary
Justify your answer.
Plus One Zoology Model Question Papers Paper 3 4

Questions 4-14. Answers any 9 questions. Each question carries 2 score.
Plus One Zoology Model Question Papers Paper 3 5

Question 4.
Plus One Zoology Model Question Papers Paper 3 6
Carbon dioxide transport in the form of bi-carbonate ion is picturized below. Observe the diagram and identify the enzyme not¬ed as “A”.
Plus One Zoology Model Question Papers Paper 3 7

Question 5.
Categorize the following animals based on the nature of excretion of nitrogenous waste.
Mammals, Bony fishes, Birds, Aquatic am¬phibians, Terrestrial amphibians, Insects, Cartilage fishes, Aquatic insects.
Plus One Zoology Model Question Papers Paper 3 8

Question 6.
Stethoscope is an instrument which is used to detect the sounds of the heart.
a. Mention the two sounds of the heart.
b. Give the causes of heart sound.
Plus One Zoology Model Question Papers Paper 3 9

Question 7.
Find the odd one and write the function.
Neutrophil, Erythrocyte, Monocyte, Lymphocyte, Basophil, Eosinophil,
Plus One Zoology Model Question Papers Paper 3 10

Question 8.
Observe the diagram carefully and Label the parts marked as A,B,C,D.
Plus One Zoology Model Question Papers Paper 3 11

Question 9.
Obseve the given diagram and answer the following questions
Plus One Zoology Model Question Papers Paper 3 12
a. Identify the duct labelled A and the secretion it pours into the doudenum.
b. Mention any one function of secretion in digestion.
Plus One Zoology Model Question Papers Paper 3 13

Question 10.
The following diagram shows the characteristic features of a phylum.
a. Identify the phylum.
b. Mention four salient features of this phylum.
Plus One Zoology Model Question Papers Paper 3 14

Question 11.
Observe the following figure.
a. Name the figure.
b. Label the parts A, B and D
Plus One Zoology Model Question Papers Paper 3 15

Question 12.
Complete the given flowchart :
Plus One Zoology Model Question Papers Paper 3 16

Question 13.
Like insulin and glucagon, PTH and calcitonin are antagonistic in their action inmaintaining normal blood calcium level. Substantiate this statement.
Plus One Zoology Model Question Papers Paper 3 17

Question 14.
Fill in the blanks with suitable terms according to the indicators shown below: Indicators : a and b -food habit, cand d- Excretory organ.
a. Cockroach : ……………
b. Earthworm : ……………
c. Cockroach : ……………
d. Earthworm : ……………
Plus One Zoology Model Question Papers Paper 3 18

Questions 15 – 18. Answers any3 questions. Each question carries 3 scores.
Plus One Zoology Model Question Papers Paper 3 19

Question 15.
Complete the columns using the appropriate phylum, distinctive features and excretory organs.
Plus One Zoology Model Question Papers Paper 3 20

Question 16.
Observe the figure given below and answer the questions.
Plus One Zoology Model Question Papers Paper 3 21
a. Write the name of the figure.
b. Name the labelled part (A) and (B).
c. Which is the site of formation of ultrafiltrate?
Plus One Zoology Model Question Papers Paper 3 22

Question 17.
The following diagram shows the characteristics of a phylum.
Plus One Zoology Model Question Papers Paper 3 23
a. Identify the phylum.
b. Label A in the diagram.
c. Mention four salient features of the phylum.
Plus One Zoology Model Question Papers Paper 3 24
Plus One Zoology Model Question Papers Paper 3 25

Question 18.
Result of a project study related to the circulatory disorders to an area is given below.
Plus One Zoology Model Question Papers Paper 3 26
a. What is your observation?
b. Name any one circulatory disorder and its characteristics.
c. Suggest two measures to avoid these disorders.
Plus One Zoology Model Question Papers Paper 3 27

ANSWERS

Answer 1.
Sapiens → Homo → Hominidae → Primata → Mammalia → Chordata

Answer 2.
Zoological Park

Answer 3.
Museum

Answer 4.
Carbonic anhydrase.

Answer 5.
Plus One Zoology Model Question Papers Paper 3 28

Answer 6.
a. Lubb, dupp
b. Lubb: Sound is heard when the closure of biscupid and triscupid valve takes place. Dupp sound is heard due to the closure of semilunar valve.

Answer 7.
Erythrocyte. It helps in gas transport through blood.

Answer 8.
A – Lens
B – Iris
C – Cornea
D – Optic nerve

Answer 9.
a. Bile duct, bile.
b. Bile emulsifies fat.

Answer 10.
a. Phylum Chordata
b. Chrodata
i. Notochord present
ii. Pharyngeal gills slits present
iii. Dorsal tubular nerve cord
iv. Heart is ventral
v. presence of post anal tail

Answer 11.
a. Cross section of small intestine/gut.
b. A – Serosa, B – Muscularis, D – Mucosa

Answer 12.
A – Mid brain
B – Thalamus,
C – Cerebellum
D – Medulla oblongata

Answer 13.
Thyrocalcitonin secrected from the thyroid gland and parathyroid hormone secreted from the parathyroid gland involved in the regulation of blood calcium level. Thyrocalcitonin decrease the blood calcium level by decreasing the intestinal absorption of calcium but parathyroid hormone (PTH) increase the blood calcium level by enhancing intestinal absorption of calcium ions and decalcifiation of bones.

Answer 14.
a. Cockroach – omnivore
b. Earthworm – Soil and decayed leaves
c. Malpighian tubule
d. Nephredia

Answer 15.
a. Flat body
b. Flame cells
c. Jointed footed animals
d. Annelida
e. Nephridia
f. Echinodermata

Answer 16.
a. Malpighiancorpuscle

b. A – Glomerulus,
B – Bowman’s capsule

c. Bowman’s capsule (Lumen)

Answer 17.
a. Phylum Chordata

b. Notochord

c. 1. Presence of notochord
2. Dorsal hollow nerve cord
3. Phasym seal gill slit
4. Post aral tail

Answer 18.
a. 55% persons are affected with circulatory disorders.

b. 1.Hypertension: Patients body has very high blood pressure than normal.
2.Coronary artery disease: Affect blood vessels that supply blood to heart.

c. 1.Avoid fat containing food, smoking, drugs etc.
2.Do regular exercise.

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