XII Zoology

SECTION “A” – (MCQs – Multiple Choice Questions)

Q.1. Choose the correct answers.

i. An animal which possess both the function of testis and ovaeies is called

• Hermaphrodite
• Unisexual
• Heterophrodite
• None of them

ii. The end of the period of fertility in a human femal is

• Menopauses
• Puberty
• Ovulation
• Menses

iii. The locomotary organ of paramecium is

• Pseudopodia
• Cilia
• Flagella
• None of them

iv. The Number of muscles in human body is

• 400
• 500
• 600
• 700

v. The study of abnormal development is called

• Orthology
• Teratology
• Entomology
• Hysiology

vi. Vastilation occurs in

• Low Temperature
• High Temperature
• Low Humidity
• High Humidity

vii. Malphigian Rubules are the Excretory Organ of

• Earth worm
• Hydra
• Cockroach
• Planaria

viii. Elbow joint is an example of ________

• Hinge joint
• Fired joint
• Fixed joint
• Glidining joint

ix. The concentration of Urea in Urine is

• 2.00/100cm
• 5.00/100cm
• 0.03/100cm
• 0.03/100cm

x. Albinism is a ________ disorder

• Blood
• Bone
• Skin
• Heart

xi. Tooth Decay caused by deficiency of

• Form
• Fluorine
• Protein
• Vitamin C

xii. In man there are ________ pairs of Spinal Nerves

• 30
• 31
• 32
• 33

xiii. The Selfest and Cheaper source of Energy is

• Nuclear Energy
• Hydroelectric energy
• Petroleum
• Coal

xiv. They Cyclic AMP serves as

• First Messenger
• Second Messenger
• Third Messenger
• Fourth Messenger

xv. The gas responsible for deplition of Ozone.

• Oxygen
• CO
• Nitrogen
• Chlorine

SECTION “B” – (Short Question Answers)

Q.2. (i) Explain Genetic Disorder and their treatment?

ii. Write the Names of bacterial diseases and their causes?

iii. Write a short note on

• Abnormal Development
• Pituitary Gland
• Lactation
• Thyroid Gland
• Regeneration
• Reflex Action
• Cardiac Muscles

iv. Give the homeostatic function of liver?

v. Explain Osmoregulation in fresh Water Fishes?

vi. Differentiate between the following

• Nervous Coordination and Chemical Coordination
• Oestrous Cycle and Ovarian Cycles
• External Fertilization and Internal Fertilization
• Sexual Reproduction and Asexual Reproduction
• Symbiosis and Commensalism

vii. Define Aging and Explain the causes of Aging?

viii. Explain Parkinson’s Alzheimer’s disease?

ix. Draw only the labelled diagram of L.S. of Hen’s Ovule?

x. Explain Diencphalon?

xi. Name the Antagonistic Muscles with Functions?

xii. Discuss the Test tube baby?

xiii. Draw labelled diagram of Made Reproductive Organs?

xiv. What are Common Skeleton Related disease?

xv. Write the Evidences from Vestigal Organs?

xvi. What is Development? On what process does it depend?

SECTION “C” – (Detailed Answer Questions)

Q.3. Explain the structure of Neuron. How does the transmission of Nerve Impulse take place from one Neuron to other? Explain with Diagram.

Q.4. Describe the Female (Human) Reproductive System?

Q.5. What is Pollution? Name kinds of pollution and explain air pollution in detail.

Q.6. Describe some uses and applications of Biotechnology? What could be its potential Hazards?

Q.7. What are Infectious and Parasitic Disease. Write their cause and Transmission with examples.

Q.8. What is joint? Describe different kinds of joints found in human skeleton? Explain the mechanism of movable joint with diagram?