Among the pulses, the highest quantity of protein is present in –
**Core Concept**
The question is testing the knowledge of protein content in pulses, which is a critical aspect of nutrition and dietetics. Pulses are a type of legume that are rich in protein, fiber, and other essential nutrients.
**Why the Correct Answer is Right**
The highest quantity of protein is present in lentils, specifically the red or yellow lentil (Lens culinaris). This is because lentils have a higher protein content compared to other pulses like chickpeas, kidney beans, or black gram. Lentils contain all the essential amino acids required by the human body, making them a complete protein source. The protein content in lentils is around 25-30% of the dry weight, which is significantly higher than other pulses.
**Why Each Wrong Option is Incorrect**
* **Option B:** Chickpeas are a good source of protein, but they have a lower protein content compared to lentils. Chickpeas contain around 20-25% protein by dry weight.
* **Option C:** Kidney beans are another type of pulse that is high in protein, but they have a lower protein content compared to lentils. Kidney beans contain around 20-22% protein by dry weight.
* **Option D:** Black gram is a type of pulse that is low in protein compared to lentils. Black gram contains around 15-18% protein by dry weight.
**Clinical Pearl / High-Yield Fact**
A good rule of thumb is to include a variety of pulses in your diet to ensure a balanced intake of essential amino acids. Lentils are an excellent choice for vegetarians and vegans who require a complete protein source.
**Correct Answer: A. Lentils**