Placenta structure/function and STDs

Question 1

Name the special tissue inside the uterus that provides nutrition to the developing embryo. Describe its structure. State its two functions besides nutrition.

Accepted Answer

The tissue is **Placenta**. Structure: A disc-like structure embedded in uterine wall containing villi on embryo side and blood spaces on mother's side. Two other functions: 1. Removal of metabolic wastes ($	ext{CO}_2$, urea) from embryo. 2. Endocrine function (secretion of hormones like hCG, progesterone).

Question 2

Write any two sexually transmitted diseases in humans and their causative microbial agents.

Accepted Answer

1. **Gonorrhea** / **Syphilis** — Causative agent: Bacteria (*Neisseria gonorrhoeae* / *Treponema pallidum*). 2. **AIDS** / **Genital Warts** — Causative agent: Virus (HIV / HPV).

Placenta structure/function and STDs

Passage / data set

Question 1 of 2

Explanation

Question 2 of 2

Explanation

Practise this under board exam conditions