Biology Blogs For Class 11th, 12th & NEET

   Sand Culture and Hydroponics: Growing Plants Without Soil  What is the Sand Culture Experiment? The Sand Culture Experiment involves growing plants in sterile sand that is devoid of minerals. This allows scientists to study the effect of specific nutrient elements on plant growth.  How It's Done: Sterile sand is prepared by washing it with hydrochloric acid (HCl) to remove all minerals. The sand is thoroughly rinsed with distilled water . Experimental plants are then grown in this sterile medium.  Types of Setups: Control Plants: Grown in sand containing a nutrient solution with all essential elements . Deficient Plants: Grown in sand with a solution lacking one or more nutrients .  Observation: Plants show deficiency symptoms when specific elements are missing. This helps identify the role of each mineral. Advantages of Sand Culture Allows controlled study of individual nutrient effects. Clear comparison ...

  Introduction NEET Biology accounts for 50% of the paper (90 questions) , and with NCERT-based questions dominating the section, it becomes the most scoring subject if prepared smartly. In this post, we’ll cover chapter-wise NEET Biology weightage for 2025 , plus the best tips to crack it. NEET Biology Syllabus Overview Total Questions: 90 Marks: 360 out of 720 Divided equally from Class 11 and Class 12 Based on NCERT Biology Books (100% questions are directly or indirectly from it) 📘 Class 11 Biology Chapter-wise Weightage Chapter Expected No. of Questions Weightage (%) Diversity of Living Organisms 5–6 ~12% Structural Organisation in Animals & Plants 3–4 ~6% Cell Structure and Function 5–6 ~10% Plant Physiology 4–5 ~8% Human Physiology 10–12 ~20% 📗 Class 12 ...

  Classification of Fungi – Types, Characteristics & Economic Importance Fungi are a fascinating group of organisms that are distinct from plants and animals. They are eukaryotic, heterotrophic, and reproduce through spores. In this article, we will dive deep into the classification of fungi , their key characteristics , and their economic significance . This post is ideal for biology students, educators, and enthusiasts looking to understand fungi in an organized and structured way. Classification of Fungi Fungi are classified into four major classes: Phycomycetes Ascomycetes Basidiomycetes Deuteromycetes 1. Phycomycetes Phycomycetes are considered the most primitive group of fungi. Found mostly in aquatic and moist habitats, including decaying organic matter. The mycelium is coenocytic (non-septate) and multinucleate. They reproduce asexually through zoospores (motile) or aplanospores (non-motile). Sexual reproduction can be isogamous, a...