The infoldings of the inner mitochondrial membrane are called: MCQ with Answer and Explanation

Explanation:
Dengue is a viral disease caused by the Dengue virus, not a protozoan (malaria is caused by a protozoan). Filariasis (elephantiasis) is caused by parasitic nematode worms like Wuchereria bancrofti, which block lymphatic vessels. Pneumonia is an infection that inflames the air sacs in one or both lungs, affecting the respiratory system. Thus, statements 2 and 3 are correct.

Explanation:
Stomata are surrounded by two kidney-shaped guard cells in dicots (dumb-bell-shaped in grasses) that control pore opening/closing via turgor pressure changes. When guard cells absorb water and become turgid, the stomatal pore opens; when flaccid, it closes. This process is influenced by light, CO₂ concentration, and abscisic acid (ABA). Stomata are critical for gas exchange and transpiration.

Explanation:
Parenchyma cells are living, thin-walled, and isodiametric, making up the ground tissue of plants. They are involved in photosynthesis (chlorenchyma), storage, and secretion. Collenchyma provides support with uneven thickening, sclerenchyma has lignified walls and is often dead, xylem conducts water.