NEET Biology Notes PDF 2027 | Class 11 & 12

NEET HARD - Ch2 Human Reproduction 🧬 Chapter 2: Human Reproduction - HARD LEVEL NEET 2027 Q1. Assertion: Spermatogenesis is temperature dependent. Reason: Scrotum provides 2-3°C lower temperature than body. a) Both true, Reason correct explanation b) Both true, Reason not correct explanation c) Assertion true, Reason false d) Both false Q2. Match List-I with List-II: A. Leydig cells - 1. Nourishment of sperm, B. Sertoli cells - 2. Testosterone, C. Acrosome - 3. Hyaluronidase, D. Middle piece - 4. Mitochondria a) A-2, B-1, C-3, D-4 b) A-1, B-2, C-4, D-3 c) A-2, B-3, C-1, D-4 d) A-4, B-1, C-2, D-3 Q3. Which of the following statements is INCORRECT regarding menstrual cycle? a) LH surge induces rupture of Graafian follicle b) Progesterone is secreted by corpus luteum in luteal phase c) FSH levels are highest during ovulation d) Endometrium is shed during menstrual phase Q4. If a secondary oocyte is fertilized, the resulting zygote will have a) 23 chromosomes b) 46 chrom...

Hello friend 👋 Free NEET Notes for Chapter 20: Locomotion and Movement 🔥 ✅ 3 Types of Muscles ✅ Sliding Filament Theory  ✅ 206 Bones + Types of Joints ✅ NEET High Yield Points + Disorders Share with your NEET friends ❤️ ### *1. Types of Movement in Animals* 1. *Amoeboid Movement*: By pseudopodia. Ex: Amoeba, Macrophages, WBCs. Uses actin microfilaments 2. *Ciliary Movement*: By cilia. Ex: Paramecium, lining of trachea, oviduct 3. *Flagellar Movement*: By flagella. Ex: Sperm, Euglena, Chlamydomonas 4. *Muscular Movement*: By skeletal muscles. Most advanced. Helps in locomotion ### *2. Human Muscular System - 3 Types* Feature Skeletal Muscle Smooth Muscle Cardiac Muscle **Location** Attached to bones Hollow organs, blood vessels Heart wall only **Control** Voluntary Involuntary Involuntary **Striations** Present Absent Present **Shape** Cylindrical, unbranched Spindle shaped Branched **Nuclei** Multinucleated, peripheral Uninucleated, central Uninucleated, central **Intercalated di...