Identify the incorrect statement regarding bacteria:

(1) Bacteria are the most abundant micro-organisms.

(2) Bacteria live in extreme habitats where very few other life forms can survive.

(3) Bacteria as a group show the most extensive metabolic diversity.

(4) They are obligate intracellular parasites.

 

Subtopic:  Kingdom Monera: Introduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Consider the following statements regarding characters of Archaebacteria that they share with eukaryotes:

I. The cell wall does not contain peptidoglycan.

II. DNA associated with histones.

III. Translation initiated with formylated methionine.

IV. RNA polymerase similar to eukaryotic RNA polymerase II

V. ATPase similarity

VI. Similar DNA replication and repair

How many of the above characters Archaebacteria share with eukaryotes?

(1) 3

(2) 4

(3) 5

(4) 6

Subtopic:  Kingdom Monera: Bacterial Classification |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Identify a character that is not unique to archaebacteria:

(1) Cell wall structure

(2) Cell membrane structure

(3) Flagellin protein structure

(4) Fatty acid synthetase present

Subtopic:  Kingdom Monera: Bacterial Classification |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Identify the incorrect statement regarding true bacteria?

(1) As a group, they exhibit maximum metabolic diversity

(2) Chemosynthetic autotrophic bacteria play a great role in recycling nutrients like nitrogen, phosphorous, iron and sulphur.

(3) Heterotrophic bacteria are the most abundant in nature.

(4) Bacteria reproduce mainly by fission but sometimes under favourable conditions, they produce spores.

Subtopic:  Kingdom Monera: Bacterial Reproduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Consider the following statements regarding Mycoplasma:

I. They are a genus of bacteria that have a unique cell wall of their own.

II. In their genetic code UGA codes for tryptophan.

III. None of them is pathogenic to humans.

IV. They have a large genome.

V. They can be killed by penicillins.

VI. They can survive without oxygen

The number of correct statements is:

(1) 1

(2) 2

(3) 3

(4) 4

Subtopic:  Kingdom Monera: Actinomycetes & Mycoplasma |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Diatoms have left behind large amount of cell wall deposits in their habitat because:

(1) They are most abundant in that habitat

(2) Their life span is long 

(3) Their wall is indestructible

(4) The statement is not true. 

Subtopic:  Kingdom protista: Chrysophytes |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Dinoflagellates:

I. Are mostly marine and photosynthetic.

II. Have a cell wall that has stiff cellulose plates on the outer surface.

III. Have two flagella

IV. Have chloroplasts bound by three membranes

The correct statements are:

(1) I, II and III

(2) I, III and IV

(3) II, III and IV

(4) I, II III and IV

Subtopic:  Kingdom protista: Dinoflagellates |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Consider the following characters:

I. Heterotroph organisms

II. A dikaryon stage

III. Cell wall made of chitin

IV. Undergo nuclear mitosis

Which of the above relate to fungi?

(1) I, II and III

(2) I, III and IV

(3) II, III and IV

(4) I, II, III and IV

Subtopic:  Kingdom Fungi:: Introduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


How many of the following statements regarding fungi are true?

I. Asexual reproduction is common by the formation of spores.

II. Their bodies consist of hyphae that many be interconnected to form mycelium.

III. They secrete digestive enzymes onto organic matter and then absorb the products of the digestion.

IV. Fungi can break down almost any carbon containing product.

V. Fungi do not enter symbiotic relationships.

(1) 2

(2) 3

(3) 4

(4) 5

Subtopic:  Kingdom Fungi:: Introduction |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Which of the following is not an edible mushroom?

(1) Agaricus bispora

(2) Pleurotus ostreatus

(3) Lentinula edodes

(4) Amantia phalloides

Subtopic:  Kingdom Fungi: Ascomycetes |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level: