Identify the correct statement about the cell wall: MCQ with Answer and Explanation

Explanation:
Luteinizing Hormone (LH) is a gonadotropin secreted by the gonadotroph cells of the anterior pituitary. In females, during the late follicular phase, rising estrogen levels exert positive feedback on the pituitary, causing a massive, sudden surge of LH (the LH surge). This surge directly triggers ovulation (the rupture of the mature Graafian follicle and release of the secondary oocyte) and subsequently stimulates the remaining follicular cells to transform into the corpus luteum, which secretes progesterone.

Explanation:
Lycopene is a red carotenoid pigment found in tomatoes, watermelon, and pink grapefruit. It is an antioxidant and not a precursor of vitamin A. Beta-carotene is orange and a provitamin A. Chlorophyll is green, xanthophyll yellow. Lycopene is concentrated during ripening as chlorophyll degrades.

Explanation:
Anabaena azollae lives in cavities of the water fern Azolla and fixes atmospheric nitrogen. It is used as a biofertilizer in rice paddies.