NEET BIOLOGY

Detailed explanation-1: -They are heterotrophic in nature and thus obtain their food from an outside source. They are saprophytes that obtain their nutrients by feeding on dead and decaying organic matter. These protists can be classified into two categories-water molds and slime molds.

Detailed explanation-2: -Protists get food in one of three ways. They may ingest, absorb, or make their own organic molecules. Ingestive protists ingest, or engulf, ba cteria and other small particles. They extend their cell wall an d cell membr ane around the food item, forming a food vacuole.

Detailed explanation-3: -Biologists generally categorize protists according to their Mode of movement, or locomotion. All protists can travel through water by one of three methods: cilia, flagella, or pseudo/axopodia.

Detailed explanation-4: -Some make their own food, but most take in or absorb food. Most protists move with the help of flagella, pseudopods, or cilia. Some protists, like the one-celled amoeba and paramecium, feed on other organisms. Others, such as the one-celled euglena or the many-celled algae, make their food by photosynthesis.

Detailed explanation-5: -A few forms can move by gliding or floating, although the vast majority move by means of “whips” or small “hairs” known as flagella or cilia, respectively. (Those organelles give their names to informal groups-flagellates and ciliates-of protists.) A lesser number of protists employ pseudopodia.