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Read the following statements about prot...

Read the following statements about protists and state how many of them are true
(I) Euglenoids have a Carbohydrate rich layer called pellicle.
(II) Slime moulds are Saprophytic fungi .
(III) Dinoflagellates are mostly found in fresh water and are photosynthetic
(IV) spores of slime moulds are dispersed bye water.

A

One

B

Two

C

Three

D

zero

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many of the provided statements about protists are true, we will evaluate each statement one by one. **Step 1: Evaluate Statement I** - Statement: Euglenoids have a carbohydrate-rich layer called pellicle. - Analysis: Euglenoids do not possess a cell wall; instead, they have a pellicle, which is a protein-rich layer. Therefore, this statement is incorrect. **Step 2: Evaluate Statement II** - Statement: Slime moulds are saprophytic fungi. - Analysis: Slime moulds are not classified as fungi, even though they exhibit a life cycle similar to fungi. They are categorized as protists. Hence, this statement is also incorrect. **Step 3: Evaluate Statement III** - Statement: Dinoflagellates are mostly found in fresh water and are photosynthetic. - Analysis: Dinoflagellates are primarily found in marine environments, not fresh water. While some dinoflagellates are photosynthetic, many are mixotrophic, meaning they can obtain energy through both photosynthesis and heterotrophy. Therefore, this statement is incorrect. **Step 4: Evaluate Statement IV** - Statement: Spores of slime moulds are dispersed by water. - Analysis: Slime moulds produce spores during their pseudoplasmodium phase, but these spores are not primarily dispersed by water. They are typically dispersed by wind or other means. Thus, this statement is also incorrect. **Conclusion:** After evaluating all four statements, we find that none of them are true. Therefore, the answer to the question is that **0 statements are true**. ### Summary of True Statements: - Statement I: Incorrect - Statement II: Incorrect - Statement III: Incorrect - Statement IV: Incorrect **Final Answer: 0 statements are true.**
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Read the following statements regarding Euglenodis and select the INCORRECT ones. (i). These are mostly freshwater organisms found in stagnant water. (ii)Their body is covered by a protein - rich layer called pellicle which makes their body flexible. (iii) They are photosynthetic in the presence of sunlight but become heterotrophs in the absence of sunlight. (iv) they usually possess two flagella , one long and one short. (v) Euglenoids are multicellular ciliate protists.

I. Unicellular protists founds in fresh water II. Possess a protein rich outer layer called pellicle III. Have two flagella IV. Posses pigments identical to those in higher plants. These characteristics apply to genus

Knowledge Check

  • Read the following statements carefully: (A) Members of protista are primarily aquatic (B) Majority of protists have cilia as well as flagella (C ) Most of dinoflagellates have two flagella, one lies longitudinally and the other transversely (D) The spores of slime moulds are extremely resistant but survive onlyforone month. How many of the above statements are incorrect?

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  • Read the following statements and state how many of them are true ? (P) primary succession , is a very slow process taking thousands of years for the climax to be reached . (Q) All succession whether taking place in water or land proceeds ti a similar climax community, the mesic. (R) As succession proceeds, the number and types of animals and decomposers also change. (S) Saprophytes are not given any place in the ecological pyramids as they play no role in the ecosystem.

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