Neet
ASSERTION AND REASON
1)
Assertion: Plants lack excretory
organs. Reason: Plant usually absorb
essential nutrients and lead a passive life. [AIIMS 1997]
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
2) Assertion: Leguminous plants are nitrogen fixers.
Reason: Leguminous plants have Rhizobium
in their root nodules. [AIIMS 1997]
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both the
assertion and reason are true but the reason is not a correct explanation of
the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
3) Assertion: Insectivorous habitat of plants is to cope
up
O2
deficiency.
Reason: Insectivorous plants are partly
autotrophic and partly heterotrophic. [AIIMS 1998]
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
4) Assertion: Use of fertilizers greatly enhances crop
productivity. Reason: Irrigation is very important in increasing crop
productivity. [AIIMS 2003]
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
5) Assertion: Hydroponics is used for solution culture.
Reason: A balanced nutrient solution
contains both essential and nonessential elements.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
6) Assertion: The leaves of cauliflower become flaccid
and brown in molybdenum deficiency. Reason:
Cauliflower plant is affected by whiptail disease in molybdenum
deficiency.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the assertion
is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
7) Assertion: In Dionaea, each lamina has marginal
teeth. Reason: Marginal teeth of Dionaea
help in prey capturing.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
8) Assertion: Iron takes part in electron transport
system of mitochondria. Reason: Iron has
no role in chlorophyll synthesis.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
9) Assertion: Magnesium is important in photosynthesis
and carbohydrate metabolism. Reason:
Mg++
is involved
in the synthesis of nucleic acids.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
10) Assertion: The bacterium in free-living condition can
fix nitrogen. Reason: Rhizobium fixes
nitrogen asymbiotically.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
11) Assertion: Nitrogen-fixing bacteria in legume root
nodules survive in oxygen-depleted cells of nodules. Reason: Leghaemoglobin completely removes oxygen from
the nodule cells. [AIIMS 2004]
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
12) Assertion: Deficiency of sulphur causes chlorosis in
plants. Reason: Sulphur is a constituent
of chlorophyll, proteins and nucleic acids. [AIIMS 2004]
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
13) Assertion: Nepenthes khasiana is a carnivorous plant.
Reason: Leaves highly specialised to catch
insects in carnivorous plant.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
14) Assertion: Iron is a microelement. Reason: Microelements are required in traces only,
less than 1mg/gm of dry matter.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
15) Assertion: In solution culture of plants, iron is
added in the form of Fe-EDTA. Reason:
Hydroponics set-up is costly.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
16) Assertion: Calcium is a constituent of cell wall.
Reason: Calcium is required in mitotic
division.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
17) Assertion: Exanthema disease occurs due to deficiency
of manganese. Reason: Reclamation is a
disease of cereals.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
18) Assertion: Manganese is an activator of enzyme
nitrite reductase. Reason: Manganese
deficient cells prefer ammonia over nitrate.
A) If both
the assertion and the reason are true and the reason is a correct explanation
of the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
19)
Assertion: Plants absorb nitrogen in
the form of nitrate only. Reason:
Nitrogen is the most critical element.
A) If both
the assertion and the reason are true and the reason is a correct explanation of
the assertion
B) If both
the assertion and reason are true but the reason is not a correct explanation
of the assertion
C) If the
assertion is true but the reason is false
D) If both
the assertion and reason are false
E) If the
assertion is false but reason is true
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