NEET BIOLOGY

Detailed explanation-1: -By eating other animals or other decaying organic matter in the ecosystem, heterotrophic protists receive the carbon-containing nutrients. They trap the sunshine and conduct photosynthesis in the presence of light. They use the heterotrophic mode of nutrition in the absence of light.

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: -Protists are eukaryotic, unicellular organisms that belong to the kingdom Protista. All protists are not heterotrophs. They can be autotrophs, heterotrophs, or mixotrophs. Autotrophic protists possess chlorophyll that helps them in photosynthesis.

Detailed explanation-4: -Some protists are autotrophic, others are heterotrophic. Recall that autotrophs make their own food through photosynthesis or chemosynthesis (see the Photosynthesis concepts). Photoautotrophs include protists that have chloroplasts, such as Spirogyra. Heterotrophs get their energy by consuming other organisms.