Daily NEET MCQ- March 5, 2022 - NEET MCQ

In Amplitude modulation, the modulating wave is superimposed on a high-frequency carrier wave such that the amplitude of the modulated wave varies as the amplitude of the modulating wave.

Antibiotics can either kill the target microbes (cidal effect) or can prevent it from pathogenic action (static effect). The former are known as bactericidal and the latter is known as bacteriostatic.

A greenhouse, also called a glasshouse is a building made of transparent material, in which plants such as flowers and vegetables requiring regulated climatic conditions are grown. The word greenhouse gives rise to the term ‘Greenhouse effect’.

AGC stands for automatic gain control. Automatic gain control changes (AGC) the overall gain of a receiver automatically so that the strength of the received signal remains almost constant.

Penicillin is an antibacterial compound derived from Penicillium. It has a bactericidal effect on microbes. Ampicillin is a modified version of penicillin with a wider spectrum. Arsphenamine is an -As=As- linkage compound that resists bacterial action and is also toxic to human beings. Sulphanilamide is an active antibiotic compound formed in the body.

A building made of transparent material, in which plants requiring regulated climatic conditions are grown is called a greenhouse. In this, the plants are grown especially during winters.

Amplitude modulation (AM) is used for broadcasting because it avoids receiver complexity. Moreover, only a diode and a capacitor are sufficient to separate the audio signal from the amplitude-modulated wave.

Antibiotics are classified based on the range of microbes that are affected by it. Broad spectrum antibiotics affect Gram-positive as well as Gram-negative bacteria. Narrow spectrum are used only against either Gram-positive or Gram-negative bacteria, whereas limited spectrum antibiotics kill or inhibit only one particular organism.

A greenhouse is a building made of transparent material in which plants requiring regulated climatic conditions are grown. It has a glass panel that allows the entry of light but does not allow the departure of light.

Progesterone is a hormone that is known to suppress ovulation. Antifertility drugs are made of synthetic Estrogen and progesterone derivatives. Ethynylestradiol is a drug with a combination of these two derivatives.