B3: Obtaining Nutrients

Question 1

Autotroph / autotrophic

Answer 1

Organisms that produce their own nutrients using environmental energy

Question 2

Heterotroph/ Heterotrophic

Answer 2

Organisms that rely on ingesting or absorbing other organisms (plants, animals, etc) for nutrients

Question 3

Endocytosis

Answer 3

Process by which single-celled organisms (i.e. amoeba) ingest food, by folding in a portion of their cell membrane and forming a food vacuole/ vesicle which will later be digested

Question 4

Photosynthetic autotrophs

Answer 4

Autotrophs that have chlorophyll molecules that absorb sunlight to generate sugar through photosynthesis.

Question 5

Chloroplasts/ Chlorophyll

Answer 5

Chloroplast - double membrane containing chlorophyll where photosynthesis takes place

Chlorophyll - natural compound in plants that gives them a green colour. It alos helps plants absorb the light from the sun and use it to undergo photosynthesis

Question 6

Photosynthesis

Answer 6

Processed used by plants and some other organisms, to be able to convert light (sunlight) to energy, to fuel cell functions

Question 7

Chemosynthetic Autotrophs

Answer 7

Autotrophs that harness energy relased by organic chemical compunds (i.e. sulfur), used by organisms that live in areas with no sunlight