Human Reproduction — BIOLOGY STD 12 Science — Question
Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYHuman Reproduction2 Marks
Question
What is placenta? How does it develop?
✓
Answer
→ Placenta is a structural and functional unit between developing embryo (foetus) and maternal body. → After implantation, finger-like projections appear on the trophoblast called chorionic villi which are surrounded by the uterine tissue and maternal blood. → The chorionic villi and uterine tissue become interdigitated with each other and jointly form placenta.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.