AIOU Solved Assignment Code 364 General Science-II Autumn 2025 & Spring 2026 PDF Free Download

Are you looking for the updated and complete AIOU Solved Assignment Code 364 General Science-II for the Autumn 2025 and Spring 2026 academic semesters? You have arrived at the official, student-verified study resource portal! At aiou.net.pk, we provide 100% accurate, syllabus-aligned, and top-scoring solved assignments in free downloadable PDF format tailored specifically for Intermediate (FA / General Science) students of Allama Iqbal Open University (AIOU).

Every assignment solution below has been meticulously prepared by seasoned educationists and subject matter experts in accordance with the official 9-unit textbook syllabus issued by the university. Whether you need model answers for Assignment No. 1 (Units 1–5) or Assignment No. 2 (Units 6–9), this comprehensive study guide equips you with authentic questions, in-depth academic solutions, textbook syllabus outlines, submission deadline tables, and step-by-step submission instructions to help you secure 80+ marks in your continuous coursework assessment.

Course Code 364 Specification & Academic Overview

Before preparing and submitting your coursework, review the official academic parameters for Course Code 364 outlined in the university prospectus:

Course Parameter	Official Academic Specification
Course Code	Code 364
Subject Name	General Science-II
Academic Program	Intermediate (FA / General Science)
Program Level	Higher Secondary School Certificate (HSSC)
Credit Hours	6 Credit Hours (Elective Science)
Minimum Passing Marks	40% (Continuous Assessment + Exam)
Assignment Submission Mode	Handwritten (Dispatch to Assigned Tutor via Post)
Official Textbooks & Soft Books	Download Code 364 Book PDF
Tutor Allocation & Address Check	Find Assigned Tutor on CMS Portal
CMS Portal Student Login	AIOU CMS Portal Login Guide

Download AIOU Solved Assignment Code 364 Free PDF

Students can download both solved assignments for Course Code 364 for the current academic session completely free of charge. Click on the respective download buttons below to access high-quality reference solutions:

AIOU Solved Assignment Code 364 Solved Questions & Model Answers

To assist students who wish to understand the conceptual depth required for university examinations, we have transcribed verified model solutions to key assignment questions below:

Assignment No. 1 – Question 1

Question: Explain the Greenhouse Effect, identify major greenhouse gases, and analyze the ecological ramifications of Global Warming.

Model Answer:

The Greenhouse Effect is a natural atmospheric phenomenon wherein incoming shortwave solar radiation penetrates Earth’s atmosphere, warms the planetary surface, and is re-emitted as longwave infrared thermal radiation. Greenhouse gases—primarily Carbon Dioxide (CO₂), Methane (CH₄), Nitrous Oxide (N₂O), and Water Vapor—absorb and trap this infrared energy, maintaining Earth’s average temperature at an inhabitable 15°C. However, anthropogenic fossil fuel combustion, deforestation, and industrial emissions have drastically inflated atmospheric greenhouse gas concentrations, causing Global Warming. Ramifications include polar ice cap melting, sea level rise, extreme weather events (monsoon floods, prolonged droughts), coral bleaching, and agricultural shifts.

Assignment No. 1 – Question 2

Question: State Ohm’s Law and differentiate between Series and Parallel electrical circuits with respective mathematical formulas.

Model Answer:

Ohm’s Law states that the electric current (I) flowing through a metallic conductor between two points is directly proportional to the potential difference (V) across the two points, provided physical temperature remains constant: V = I * R, where R is electrical resistance measured in ohms (Ω). In a Series Circuit, electrical components are connected end-to-end along a single conducting pathway; electric current remains identical throughout, while total resistance is additive: R_total = R₁ + R₂ + R₃. In a Parallel Circuit, components connect across common shared terminals; voltage across each branch remains identical, while reciprocal resistances sum up: 1/R_total = 1/R₁ + 1/R₂ + 1/R₃.

Assignment No. 1 – Question 3

Question: Explain the working principle of a Step-Up and Step-Down Transformer and their role in national electrical grid transmission.

Model Answer:

A transformer operates on the principle of Mutual Induction (Faraday’s Law of Electromagnetic Induction), altering alternating current (AC) voltages between two insulated coils wound around a shared laminated iron core: V_p / V_s = N_p / N_s, where N_p and N_s represent primary and secondary coil turns. A Step-Up Transformer features more secondary turns (N_s > N_p), elevating voltage while decreasing current; electric utility grids deploy step-up transformers at power generation stations to elevate transmission voltages to 220kV or 500kV, drastically minimizing I²R thermal transmission losses over long distances. Conversely, Step-Down Transformers (N_s < N_p) lower hazardous high grid voltages down to 220V for residential consumption.

Assignment No. 2 – Question 1

Question: Describe the double helix structure of DNA and explain the fundamental concept of Recombinant DNA Technology.

Model Answer:

Watson and Crick elucidated the DNA double helix structure: two antiparallel polynucleotide strands wound around a central axis, with an alternating deoxyribose sugar-phosphate backbone and complementary nitrogenous base pairs held by hydrogen bonds (Adenine pairs with Thymine via 2 bonds; Guanine pairs with Cytosine via 3 bonds). Recombinant DNA Technology involves splicing a specific gene of interest from a donor organism into a bacterial plasmid vector using restriction enzymes (molecular scissors), sealing it with DNA ligase, and introducing the recombinant vector into host bacteria (transformation). The host expresses the foreign gene, enabling industrial-scale synthesis of human insulin, vaccines, and disease-resistant agricultural crops.

Assignment No. 2 – Question 2

Question: Trace the Carbon Cycle and evaluate how rampant deforestation in Pakistan destabilizes ecological balance.

Model Answer:

The Carbon Cycle cycles carbon through the biosphere, geosphere, hydrosphere, and atmosphere. Atmospheric CO₂ is assimilated by autotrophic plants via photosynthesis into organic glucose, consumed by heterotrophic animals through food chains, and released back into the atmosphere via cellular respiration and microbial decomposition of dead organic matter. Deforestation in Pakistan destabilizes this cycle: cutting forests eliminates vital planetary carbon sinks, causes topsoil erosion, triggers flash flooding in northern mountainous valleys, disrupts precipitation patterns, and drives native biodiversity species toward extinction.

Complete 9-Unit Textbook Syllabus for Course Code 364

Allama Iqbal Open University structures this 6-credit / 3-credit curriculum across nine cohesive instructional units. Students must thoroughly study each unit to master both assignment questions and final examination papers:

Unit Number	Official Unit Title	Core Conceptual Focus
Unit 1	The Universe, Solar System & Space Exploration	Big Bang theory, stellar evolution, planets, asteroids, satellites, space probes, and satellite communications.
Unit 2	Earth’s Atmosphere, Weather & Climate Dynamics	Atmospheric layers (troposphere to exosphere), greenhouse effect, global warming, and ozone depletion.
Unit 3	Energy Resources & Sustainable Alternatives	Fossil fuels (coal, oil, gas), solar photovoltaics, wind energy, hydropower, biomass, and nuclear energy.
Unit 4	Electricity, Magnetism & Everyday Electrical Appliances	Electric current, Ohm’s Law, electrical power, electromagnetism, transformers, and electric motors.
Unit 5	Semiconductors, Electronics & Telecommunications	P-N junction diodes, transistors, integrated circuits (ICs), radio waves, fiber optics, and mobile communications.
Unit 6	Chemical Compounds, Acids, Bases & Industrial Applications	pH scale, neutralization reactions, fertilizers, plastics, soaps, detergents, and synthetic fibers.
Unit 7	Ecosystems, Ecological Cycles & Biodiversity Conservation	Food chains, trophic pyramids, carbon cycle, nitrogen cycle, deforestation, and endangered fauna in Pakistan.
Unit 8	Human Anatomy, Genetics & Biotechnology Innovations	Circulatory, respiratory, nervous systems; DNA double helix; genetic engineering; and recombinant DNA.
Unit 9	Science, Technology, Ethics & Society in Pakistan	Scientific revolution, medical breakthroughs, ethical dilemmas in cloning, and scientific research institutes.

How to Submit AIOU Solved Assignment Code 364

Submitting your coursework in accordance with official university protocols ensures your marks are awarded without delays. Follow the mandatory procedure for your program:

Handwritten Submission Guidelines (Matric, FA & BA / Associate Degree):

1. Neat Handwriting: Write your assignments neatly on single-sided A4 lined paper using blue or black ink. Avoid cutting and overwriting.
2. Three Dispatch Slips (Partal Form): Attach three copies of the official university Assignment Dispatch Slip (Purt Form) to the front of each assignment. Clearly write your Student ID, Roll Number, Course Code (364), Semester, and Assigned Tutor’s name and address.
3. Tutor Verification: Check your allocated tutor’s mailing address on the AIOU Tutor Search Portal.
4. Postal Dispatch: Dispatch your assignment package via Pakistan Post Registered Mail or trusted courier service (TCS, Leopards) prior to the official deadline. Retain the postal booking receipt until your final semester result is announced on CMS.

Official Assignment Submission Schedule (Spring & Autumn)

Late submissions are strictly rejected by the university examinations department. Adhere to the following submission timeline:

Assignment Number	Autumn Semester Deadline	Spring Semester Deadline	Academic Units Covered
Assignment No. 1	Mid-November	Mid-July	Units 1 to 5
Assignment No. 2	Mid-January	Mid-September	Units 6 to 9

Frequently Asked Questions (FAQs)

For more solved assignments, syllabus guides, date sheets, roll number slips, and university announcements, visit the AIOU Learning Resources Homepage and bookmark our Master Solved Assignments Hub.