Biology Class 9th MCQs MCQs - General Science Practice | PakExamPoint
Practise Biology Class 9th MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Biology Class 9th MCQs MCQs and revision practice
Study Biology Class 9th MCQs through multiple-choice questions in General Science. This subtopic contains 178 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Biology Class 9th MCQs MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
Explanation Observation is the first step in the scientific method , which is used to solve biological problems. Scientists make observations about the natural world , notice patterns or phenomena, and ask questions about what they have observed. The correct order of the scientific method is: Observation Question Hypothesis Prediction Experimentation Data analysis Conclusion
Explanation The correct sequence of biological method is : Hypothesis → Reasoning → Theory → Law This sequence represents the scientific method in biology, which involves: Formulating a hypothesis ( a educated guess ) to explain a phenomenon Using reasoning and logic to develop predictions and test the hypothesis Developing a theory (a well-substantiated explanation) based on the results of experiments and observations Establishing a law (a universal principle) that describes the phenomenon
میٹا فیز کے دوران ہومولوگس کروموسوم خود کو _____ پر ترتیب دیتے ہیں؟
A. Equator of the spindle
B. Poles of the spindle
C. Center of the cell
D. Randomly in the cytoplasm
Check answer and explanation
Answer: Equator of the spindle
Explanation During metaphase, homologous chromosomes (pairs of chromosomes that contain the same genes) arrange themselves on the equator of the spindle , also known as the metaphase plate. This is a critical step in the cell division process , ensuring that each daughter cell receives a complete set of chromosomes.
Explanation Plasmodium is a genus of protozoan parasites that cause malaria. There are several species of Plasmodium that can infect humans , including P. falciparum, P. vivax, P. ovale, and P. malariae.
Explanation The period of rapid growth and development is called adolescence. This stage typically involves significant physical , emotional, and cognitive changes as individuals transition from childhood to adulthood.
چار ریاستی درجہ بندی میں، بادشاہی میٹافائٹا میں مندرجہ ذیل میں سے سبھی شامل ہیں سوائے؟
A. Algae
B. Bryophyta
C. Angiosperm
D. Gymnosperm
Check answer and explanation
Answer: Algae
Explanation In the four-kingdom classification , Kingdom Metaphyta (also known as Plantae) includes: Angiosperm (flowering plants) Gymnosperm (conifers and related plants) Bryophyta (mosses) Algae are classified under Kingdom Protista.
Explanation Taxonomy is the science of classifying and naming organisms. Helps organize plants, animals, and microorganisms into groups. Based on shared characteristics, genetics, and evolutionary relationships. Developed initially by Carl Linnaeus in the 18th century. Last verified on 06-02-2026
ایک بازو بہت چھوٹا اور دوسرا بہت لمبا کروموزوم ____ کہلاتا ہے؟
A. Telocentric
B. Acrocentric
C. Submetacentric
D. Metacentric
Check answer and explanation
Answer: Acrocentric
Explanation Acrocentric chromosomes are chromosomes with one arm (p arm) that is significantly shorter than the other arm (q arm). The p arm is often very small, and may be barely visible , while the q arm is much longer. Examples of acrocentric chromosomes include chromosomes 13, 14, 15, 21, and 22 in humans.
لبلبہ کے ذریعہ چھپا ہوا مائع، جس میں مختلف قسم کے _____ ہوتے ہیں؟
A. Hormones
B. Acids
C. Enzymes
D. Vitamins
Check answer and explanation
Answer: Enzymes
Explanation The pancreas secretes pancreatic juice , which contains a variety of enzymes that help break down carbohydrates , proteins, and fats in the small intestine. These enzymes include amylase, lipase, trypsin, and chymotrypsin, among others.
پودوں کا خلیہ پانی کھو دیتا ہے اور سائٹوپلازم سکڑ جاتا ہے جس کو _____ کہتے ہیں؟
A. Osmosis
B. Deplasmolysis
C. Cytolysis
D. Plasmolysis
Check answer and explanation
Answer: Plasmolysis
Explanation Plasmolysis is the process by which a plant cell loses water and its cytoplasm shrinks, causing the cell membrane to pull away from the cell wall. This can occur due to osmotic stress , such as when a plant is exposed to high concentrations of salt or sugar.
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