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Which of the following pair is correct? I. Amoeba – Protozoa II. Bread Mold – Fungus

Which of the following pair is correct? I. Amoeba – Protozoa II. Bread Mold – Fungus Correct Answer Both I and II

The correct answer is Both I and II.

Key Points

  •  Amoeba:
    • ​Amoeba is the microscopic unicellular protozoans of the Rhizopodan order Amoebida.
    • The well-known type species, Amoeba proteus, is found on decaying bottom vegetation of freshwater streams and ponds.
    • Amoebas are used extensively in cell research for determining the relative functions and interactions of the nucleus and the cytoplasm.
    • Amoeba depends on the simple diffusion of gases for breathing.
    • The diffusion of gases takes place through the thin cell membrane of the amoeba. 
    • In simple language, the exchange of gases in the amoeba takes place through its cell membrane.
    • Amoeba lives in water, this water has oxygen gas dissolved in it. 
    • The oxygen from water diffuses into the body of the Amoeba through its cell membrane.
    • Since the amoeba is very small in size, so the oxygen spreads quickly into the whole body of the amoeba. 
    • This oxygen is used for respiration inside the Amoeba cell. 
    • The process of respiration produces carbon dioxide gas continuously. 
    • In addition to the amoeba, other simple animals like Paramecium and Planaria also depend on the simple diffusion of gases for breathing and respiration. 

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  • Bread Mold: 
    • Fungi are primitive Eukaryotic organisms belonging to Kingdom Fungi showing extracellular digestion.
    • These are found in humid & warm places.
    • Bread Mold is a Saprophytic Fungi.
    • Fungi can be unicellular or multicellular organisms having a simple body (Example - Mucor)
    • Fungi reproduce sexually as well as asexually. Asexual reproduction takes place by Fragmentation, fission & budding.
    • Some fungi are symbiotic; they live in association either with Lichens or as Mycorrhiza in root cells of plants.
    • They show the saprophytic mode of nutrition that is, Fungi grow on dead & decaying substances. 
    • During the saprophytic mode of nutrition, fungi use enzymes present in the body of dead & decaying substances and convert them to their simpler forms outside their body.
    • These simple nutrients are then taken up by Fungal cells for their life processes.
    • Saprophytic fungi are also called natural cleaners because they degrade and decompose all the biological waste formed (dead animals and plants) making our planet healthier, more beautiful and a better place to live.
  • The image shows a saprophytic fungi bread mold growing on a slice of bread.

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