Organisms that use CO 2 as their source of carbon are called

Okay, everyone. Organisms that use carbon dioxide as their source of carbon are called what? Okay. So we categorize organisms by where they get their energy from, where they get their carbon sources from, and where they get their electron sources from. So CO2 is one of the very major carbon sources for certain types of organisms. CO2 or carbon dioxide is an inorganic molecule. So that means that it is not an organotroph because organotrophs get their energy from organic molecules and c o two is an inorganic molecule, so that's not correct. Heterotroph is not going to be correct either because heterotrophs are organisms that get their carbon from organic molecules. These are organisms that cannot generate their own organic molecules or their own carbon sources, so they have to consume organic molecules from other organisms to get their carbon. They cannot make their own carbon sources. So that's not what we're looking for. Autotrophs, however, are able to make their own carbon sources from inorganic carbon molecules, specifically CO2. A major example of an autotroph is a plant which takes in CO2 and builds glucose molecules with that carbon. So the correct answer here is probably gonna be autotrophs because they commonly get their carbon sources from inorganic molecules like carbon dioxide. Chemotroph isn't gonna be what we're looking for because a chemotroph is telling us where this organism is getting its energy. They're just telling us that it's getting getting its energy from chemicals. But we're asking about a carbon source, not an energy source. So we're not looking for chemotrophs. The correct answer here is answer choice c. An autotroph is an organism that can get its sources of carbon from carbon dioxide. A really great example of this is a plant. Okay, everyone. Let's move on to our next video.

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1. Introduction to Biology2h 42m
2. Chemistry3h 37m
3. Water1h 26m
4. Biomolecules2h 23m
5. Cell Components2h 26m
6. The Membrane2h 31m
7. Energy and Metabolism2h 0m
8. Respiration2h 40m
9. Photosynthesis2h 49m
10. Cell Signaling59m
11. Cell Division2h 47m
12. Meiosis2h 0m
13. Mendelian Genetics4h 44m
14. DNA Synthesis2h 27m
15. Gene Expression3h 6m
16. Regulation of Expression3h 31m
17. Viruses37m
- Viruses
  37m
18. Biotechnology2h 58m
19. Genomics17m
- Genomes
  17m
20. Development1h 5m
21. Evolution3h 1m
22. Evolution of Populations3h 53m
23. Speciation1h 37m
24. History of Life on Earth2h 6m
25. Phylogeny2h 31m
26. Prokaryotes4h 59m
27. Protists1h 12m
28. Plants1h 22m
29. Fungi36m
- Fungi
  19m
- Fungi Reproduction
  17m
30. Overview of Animals34m
- Overview of Animals
  34m
31. Invertebrates1h 2m
32. Vertebrates50m
33. Plant Anatomy1h 3m
34. Vascular Plant Transport1h 2m
- Water Potential
  1h 2m
35. Soil37m
- Soil and Nutrients
  20m
- Nitrogen Fixation
  16m
36. Plant Reproduction47m
- Flowers
  33m
- Seeds
  14m
37. Plant Sensation and Response1h 9m
38. Animal Form and Function1h 19m
39. Digestive System1h 10m
- Digestion
  1h 3m
- Blood Sugar Homeostasis
  7m
40. Circulatory System1h 49m
41. Immune System1h 12m
42. Osmoregulation and Excretion50m
- Osmoregulation and Excretion
  50m
43. Endocrine System1h 4m
- Endocrine System
  1h 4m
44. Animal Reproduction1h 2m
- Animal Reproduction
  1h 2m
45. Nervous System1h 55m
- Neurons and Action Potentials
  1h 8m
- Central and Peripheral Nervous System
  46m
46. Sensory Systems46m
- Sensory System
  46m
47. Muscle Systems23m
- Musculoskeletal System
  23m
48. Ecology3h 11m
49. Animal Behavior28m
- Animal Behavior
  28m
50. Population Ecology3h 41m
51. Community Ecology2h 46m
52. Ecosystems2h 36m
53. Conservation Biology24m
- Conservation Biology
  24m

26. Prokaryotes

Prokaryotic Metabolism

General Biology

26. Prokaryotes

Prokaryotic Metabolism

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Multiple Choice

Organisms that use CO₂ as their source of carbon are called

Organotrophs.

Heterotrophs.

Autotrophs.

Chemotrophs.

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Verified step by step guidance

Begin by understanding the definition of autotrophs. Autotrophs are organisms that can produce their own food using inorganic substances. They typically use carbon dioxide (CO2) as their carbon source.

Next, differentiate autotrophs from heterotrophs. Heterotrophs obtain their carbon from organic compounds, not CO2, and rely on other organisms for their food.

Consider the term 'organotrophs.' Organotrophs obtain electrons from organic compounds, which is different from autotrophs that use inorganic sources like CO2.

Examine the term 'chemotrophs.' Chemotrophs obtain energy from chemical reactions, but this term does not specify the source of carbon, unlike autotrophs which specifically use CO2.

Conclude by recognizing that autotrophs are the correct classification for organisms that use CO2 as their carbon source, distinguishing them from the other terms provided.