EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
Earn 100
Which statement is/are wrong with respect to Archaebacteria.
(1) Archaebacteria differ from other bacteria in having a different cell wall structure.
(2) feature of cell wall is responsible for their survival in extreme conditions.
(3) Methanogens are present in the guts of several ruminant animals such as cow & buffalo.
(4) These are oldest of the living fossils.
(5) Peptidoglycan & muramic acid are present in cell wall
50% studentsanswered this correctly
Important Questions on Biological Classification & Kingdom Plantae
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
Which statement is/are wrong with respect to Mycoplasma:
(1) Mycoplasma are the smallest living cells known.
(2) These can survive without oxygen.
(3) The Mycoplasma are organisms that completely lack a cell wall.
(4) Mycoplasma cannot pass through bacteria proof filters.
MEDIUM
KVPY Aptitude Test - Stream SX
IMPORTANT
The Blue-green algae, also referred to as _________(i)_________ have chlorophyll similar to green plants. Some of these organisms can fix atmospheric nitrogen in specialised cells called _________(ii)_________, e.g. Nostoc & Anabaena. _________(iii)_________ bacteria oxidise various inorganic substances such as nitrates, nitrites and ammonia & use the released energy for their ATP production.
In the above question, (i), (ii) & (iii) are respectively:
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
Match column I with Column II
| column I | column II | ||
| (i) | presence of branched chain lipids in cell membrane | (a) | Thermo acidophiles |
| (ii) | Homopolar bond in protein | (b) | Methanogens |
| (iii) | Found in marshy habitats, swamps, ruminants, sewage treatment plants | (c) | Halophiles |
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
| Kingdom | Organism | |
| (i) | Monera | Archaebacteria, Eubacteria, BGA, Euglenoids |
| (ii) | Protista | Diatoms, Dinoflagellates, Euglenoids |
| (iii) | Fungi | Albugo, Mucor, Penicillium, Slime-moulds |
Which one is/are correct match
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
Organisms living in salty areas are called as
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
Which of the following is/are correct regarding methanogens?
Gram negative
Obligate anaerobes
Found in marshy habitats
Cell wall possessess protein
EASY
KVPY Aptitude Test - Stream SX
IMPORTANT
Which match is/are wrong regarding Gram-positive and Gram-negative bacteria?
| S.NO. | Characters | Gram-Positive Bacteria | Gram-Negative Bacteria |
| Cell wall | Single layered | Two layers | |
| Murein or mucopeptide in cell wall | |||
| Capsule | Mostly present | Usually absent | |
| Mesosome | Less common | Quite common |
MEDIUM
KVPY Aptitude Test - Stream SX
IMPORTANT
Read the following statement and answer as asked next to them
Cell wall of Fungi consists of chitin or fungal cellulose.
Most fungi are heterotrophic
Fungi can also live as symbionts in association with algae as lichens and with roots of higher plants as mycorrhiza
Fusion of two nuclei called plasmogamy How many of the above statement are correct?
