1
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Which one of the following is a xerophytic plant in which the stem is modified into the flat green and succulent structure?
A
Opuntia
B
Casuarina
C
Hydrilla
D
Acacia
2
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Consider the following four statements (i), (ii), (iii) and (iv) and select the right option for two correct statements.

Statements :
(i)  In vexillary aestivation, the large posterior petal is called-standard, two lateral ones are wings and two small anterior petals are termed keel.
(ii)  The floral formula for Liliaceae is
AIPMT 2010 Mains Biology - Morphology of Flowering Plants Question 23 English 1
(iii)  In pea flower the stamens are monadelphous.
(iv)  The floral formula for Solanaceae is
AIPMT 2010 Mains Biology - Morphology of Flowering Plants Question 23 English 2

The correct statements are
A
(i) and (iii)
B
(i) and (ii)
C
(ii) and (iii)
D
(iii) and (iv).
3
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The correct floral formula of soyabean is
A
AIPMT 2010 Mains Biology - Morphology of Flowering Plants Question 24 English Option 1
B
AIPMT 2010 Mains Biology - Morphology of Flowering Plants Question 24 English Option 2
C
AIPMT 2010 Mains Biology - Morphology of Flowering Plants Question 24 English Option 3
D
AIPMT 2010 Mains Biology - Morphology of Flowering Plants Question 24 English Option 4
4
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Three of the following statements about enzymes are correct and one is wrong. Which one is wrong?
A
Enzymes require optimum pH for maximal activity.
B
Enzymes are denaturated at high temperature but in certain exceptional organisms they are effective even at temperatures 80o - 90oC.
C
Enzymes are highly specific.
D
Most enzymes are proteins but some are lipids.
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