Home
Class 12
BIOLOGY
Both intracellular and extracellular dig...

Both intracellular and extracellular digestion occur in

A

Hydra

B

Eathworm

C

Paramecium

D

All the above

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Digestion Types**: - **Intracellular Digestion**: This type of digestion occurs within the cells. Organisms that perform intracellular digestion engulf food particles into their cells and break them down using enzymes. - **Extracellular Digestion**: This type occurs outside the cells. Organisms secrete enzymes into their digestive cavity or environment to break down food before absorbing the nutrients. 2. **Analyzing the Options**: - **Hydra**: Hydra is a simple aquatic organism that has a gastrovascular cavity. It performs both intracellular and extracellular digestion. It captures prey using its tentacles, and the food is digested both inside its cells and in the cavity. - **Earthworm**: Earthworms primarily utilize extracellular digestion. They have a complete digestive system where food is broken down outside the cells in the digestive tract. - **Paramecium**: Paramecium is a single-celled organism that performs intracellular digestion. It takes in food through a process called phagocytosis, where food particles are engulfed into food vacuoles and digested inside the cell. 3. **Conclusion**: - Based on the analysis, only Hydra exhibits both types of digestion: intracellular and extracellular. Therefore, the correct answer to the question is **Hydra**. **Final Answer**: Hydra ---
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

In which animal both intracellular and intercellular digestion occurs

Distinguish between intracellular and extracellular digestion.

Distinguish between intracellular and extracellular digestion?

What is intracellular digestion?

Given below are the general characters of a phylum .Identify the phulum . (i) Extracellular and intracellular digestion (ii) Tissue level of organization (iii) Indirect development (iv) No asexual reproduction

The characters given below are shown by (i) Extracellular and intracellular digestion (ii) Exclusively marine, radially symmetrical, diploblastic, tissue level of organisation (iii) Bisexual, fertilisation external and indirect development (iv) No asexual reproduction (v) Presence of comb plates

Match column I with column II and select the correct option from the codes given below. {:(,"Column I",,"Column II"),(A.,"RER",(i),"Intracellular and extracellular digestion"),(B.,"SER",(ii),"Lipid synthesis"),(C.,"Golgi complex",(iii),"Protein synthesis and secretion"),(D.,"Lysosomes",(iv),"Moves materials out of the cell"):}

[A] : In lower invertebrates the digestion is intracellular while in higher forms it is extracellular . [R] : Extracellular digestion is highly evolved process , it takes place in gut .

[A] : In lower invertebrates the digestion is intracellular while in higher forms it is extracellular . [R] : Extracellular digestion is highly evolved process , it takes place in gut .

In Hydra, digestion is (a) Extracelluar (b) Intracellular (c) First extracellular and then intracellular (d) First intracellular and then extracellular