Which of the following organisms do not possess cell wall?

(1) Plant cell

(2) Bacteria

(3) Fungi

(4) Amoeba

Subtopic:  Kingdom Protista: Introduction |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Which of the following is not true for chrysophytes?

1. Found in fresh water as well as in marine environment.

2. Cell membranes are embedded with silica.

3. Most of them are photosynthetic.

4. Microscopic and float passively in water currents.

Subtopic:  Kingdom protista: Chrysophytes |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Who showed that viruses could be crystallized and crystals consists largely of proteins?

1. D.J. Ivanowsky

2. M.W. Beijerinek

3. W.M. Stanley

4. T.O. Diener

Subtopic:  Virus, Viroids & Prions |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Which of the following statements are true for Heterotrophic bacteria?

1. They fix nitrogen in legume roots.

2. The majority are important decomposers

3. Helpful in making curd from milk and production of antibiotics

4. All of these

Subtopic:  Kingdom Monera: Bacterial Life Process |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Which of the following is not the characteristic of the class to which Mucor belongs?

1. Mycelium is aseptate and coenocytic

2. Zygospore is formed by fusion of two gametes

3. Asexual reproduction takes place by zoospores or aplanospores

4. Gametes are always dissimilar in morphology

Subtopic:  Kingdom Fungi: Zygomycetes |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Paramecium and Amoeba are placed in kingdom protista with

1. Anabaena and Colletotrichum

2. Anabaena and Chlorella

3. Chlamydomonas and Colletotrichum

4. Chlorella and Chlamydomonas

Subtopic:  Protozoa |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Identify A, B, C in the given diagram:

 

 

A

B

C

1

Sheath

Head

Collar

       

2

Collar

Head

Sheath

       

3

Sheath

Collar

Head

       

4

Head

Collar

Sheath

Subtopic:  Virus, Viroids & Prions |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Which of the following form the basis for the division of the kingdom fungi into various classes?
(I) Mode of spore formation and fruiting bodies.
(II) Morphology of the mycelium.
(III) Mode of nutrition and occurrence.

1. I, II

2. I, III

3. II, III

4. Only I

Subtopic:  Kingdom Fungi:: Introduction |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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What is absent in Euglenoids?

1. Two flagella, a short and a long.

2. Pellicle, a protein rich layer.

3. Pigments are identical to those present in higher plants.

4. Cell wall with stiff cellulose plates.

Subtopic:  Kingdom protista: Euglenoids |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Which of the following are correct for viroids?
(I) Discovered by Pasteur.
(II) Smaller than viruses.
(III) Found to be free DNA.
(IV) Cause potato spindle tuber disease.
(V) Nucleic acid has high molecular weight.

1. I, III, IV

2. II, III, IV, V

3. II, IV

4. II, IV, V

Subtopic:  Virus, Viroids & Prions |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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