Biology hssc-ii-bcd -lahore board - copy
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This document contains questions from a biology exam for grade 12 students in Lahore, Pakistan. It is divided into two sections. Section 1 contains 12 multiple choice and short answer questions testing knowledge of topics like the urea cycle, osmoregulation, dialysis, meristematic tissue, muscle types, neurons, and reflex arcs. Section 2 contains 5 longer answer questions requiring diagrams. These cover translation, meiosis and its importance, hormones during birth, secondary plant growth and movement, and mutations and meiotic errors. Students must choose 3 of these 5 questions to answer in detail.
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Biology hssc-ii-bcd -lahore board - copy
- 1. FAZAIA SCHOOLS & COLLEGES SEND-UP EXAM: BIOLOGY HSSC-II (Lahore Board) (Session 2017 – 18) Roll No. Name of Candidate SECTION – I (Marks 44) Time allowed : 2 Hours and 35 Minutes (Total Marks: 68) NOTE: Questions therein are to be answered on the separately provided Answer Book. Use supplementary answer sheet i.e., sheet B if required. Write your answers neatly and legibly. Q.2. Attempt any Eight parts from the following. Write answers in 3 – 4 Lines:- (8× 2 = 16) (i) Draw the Metabolic Pathway of Urea Cycle (ii) Differentiate B/W Osmoconformers and Osmoregulators (iii) What is Dialysis. Name its various Types (iv) Differentiate B/W Haemodialysis and Peritoneal Dialysis (v) What are the strategic Adaptations for the Marine Animals for their Osmo Regulation (vi) What is the function of Thermostat Region in Brain, also mark its location (vii) Disuss Hydrostatic Skeleton in Molluscs (viii) What is difference in Cartilage and Bone (ix) State in brief about the Types of a Cartilage Bone (x) What is a Meristematic Tissue. Neme its Types (xi) Defferentate B/W Cork Cambinm and Vascular Cambium (xii) Differentiate B/W Primary and Secondary Growth. Q.3. Attempt any Eight parts from the following. Write answers in 3 – 4 Lines:- (8× 2 = 16) (i) What are the Smooth Muscles. State their Examples. (ii) Differentiate B/W Galls and Calluses (iii) State 4 functions of Skeletal Muscles. (iv) How Appendicular Skeleton differs from the Axial Skeleton (v) ‘What do you now about Apical Dominance (vi) Differentiate B/W Pectoral Girdle and Pelvic Girdle (vii) What is Antagonism (viii) What are the Neurons. State their Types (ix) Differentiate B/W Amygdala and Hipo- Campus (x) What is Cerebro- Spinal Fluid (xi) Draw labeled Diagram of a Reflex Arc (xii) Discuss Epilepsy Q.4. Attempt any Six parts from the following. Write answers in 3 – 4 Lines:- (6× 2 = 12) (i) State the functions of Cortisol and Oestrogen (ii) Differentiate B/W Parthenogenesis and Parthenocarpy (iii) What is Feed Back Mechanism. Give an Example (iv) How Oviparous animals differ from the Viviparous animals (v) What is Habituation. Give an Example (vi) What is a Biological Rhythm, state its Types (vii) How Photo-Periodism differs from Thigmo-Tropism (viii) How Placenta is significant in Viviparous animals (ix) What is Embryonic Induction (x) How Synapse differs from Synapsis
- 2. SECTION – II (Marks 24) NOTE: Attempt any Three (3) Questions in All Draw label diagrams where necessary.. Q.5. Draw and Explain the process of Translation (08) Q.6. Explain the process of Meiosis in detail. Also write its Importance. (08) Q.7. (A) Describe the Role of Hormones during Birth process. (04) (B) Write a note on Pancreas. (04) Q.8. (A) What is the significance of Secondary Growth in plants? (04) (B) What are the various types of Movement in plants? Discuss any TWO in detail (04) Q.9. (A) What are Mutations? Name some Types of Human Mutation. (04) (B) What are the Meiotic Errors & how they Occur (04)