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Hello!  Welcome to Test Biology Mock 3 - DIVERSITY IN THE LIVING WORLD

Instructions:

Time: 15 min                                                                                                         Full Marks: 120

  1. All questions carry equal marks and all 30 questions carry 4 marks each.
  2. You will be awarded minus one marks for each wrong answer.
  3. There is no deduction for NOT attempted question.

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1. Embryo is present but true vasculature is absent in phylum:-
2. Which of the following statements about cycas is incorrect -
3. Megasporophyll of cycas is homologous to :
4. Seed habit first established in
5. Cambium is absent in
6. Zoodiogamy takes place in
7. Assertion- Binomial names are latinised or derived from Latin irrespective of their origin.
Reason - Latin is a dead language, so used by scholars.

A - Both assertion and reason are true and the reason is the correct explanation of the assertion.

B - Both assertion and reason are true but the reason is not the correct explanation of the assertion.

C -  If the assertion is true and the reason is false.

D-If both assertion and reason are false.
8. Assertion - Members of protista are eukaryotes.
Reason- Protistial cell body does not contain a well-defined nucleus and other membrane-bounded cell organelles.

A - Both assertion and reason are true and the reason is the correct explanation of the assertion.

B - Both assertion and reason are true but the reason is not the correct explanation of the assertion.

C -  If the assertion is true and the reason is false.

D-If both assertion and reason are false.
9. Assertion- Pteridophytes are not completely successful land plants.
Reason- Pteridophytes are dependent on water for their fertilisation.

A - Both assertion and reason are true and the reason is the correct explanation of the assertion.

B - Both assertion and reason are true but the reason is not the correct explanation of the assertion.

C -  If the assertion is true and the reason is false.

D-If both assertion and reason are false.
10. Assertion- Chara is a green alga close to Bryophyta.
Reason- Sex organs are jacketed in Chara.

A - Both assertion and reason are true and the reason is the correct explanation of the assertion.

B - Both assertion and reason are true but the reason is not the correct explanation of the assertion.

C -  If the assertion is true and the reason is false.

D-If both assertion and reason are false.
11. ..........................is known as incomplete because in this subclass sepals and petals are not distinct. Flowers usually posses only one whorl of perianth which is sepaloid:-
12. Which of the following statement is correct:-
13. Nitrogen-fixing bacteria converts :-
14. Which arrangement is in correct ascending order :-
15. Anabaena is associated with Azolla's :-
16. Difference in gram + and gram - bacteria is due to -
17. Match items in column 1 with those in column 2

Column 1
A) Peritrichous flagellation
B) Living fossil
C) Rhizophora
D) smallest flowering plant
E) largest perennial alga

Column 2
J) Ginko
K) Macrocystis
L) Escherichia coli
M) selaginella
N) Wolfia
Select the correct answer from the following
18. Which one is the wrong pairing for the disease and it's causal organism?
19. Select the correct combination of the statement (a-d) regarding the characteristics of certain organisms:

1) Methanogens are archaebacteria which produce methane in marshy areas
2) Nostoc is filamentous blue-green algae which fix atmospheric nitrogen
3) chemosynthetic autotrophic bacteria synthesis cellulose from glucose
4) Mycoplasma lack a cell wall and can survive without oxygen

The correct statements are:
20. How many organisms in the list given below are autotrophs?

Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, streptomyces, sacharamyces, trypanosoma, porphyra, Wolfia.
21. The basis of classification of protozoa
22. Silica shells may or may not occur in one of the following
23. Conjunction in paramecium is by
24. In which of the following the nuclear dimorphism is seen
25. The term New systemic was introduced by
26. Pick the odd pair out
27. "Bell-animalcule" or "pedicillate protozoan " is
28. "Chaos" is also known as
29. The most important characteristics of phylum Porifera is
30. Path of water in a sponge is