Correct position of floral parts over thalamus in mustard plant is:

NEET-(Oct)2020 [Morphology-of-Flowering-Plants] [class-xi ]

• Gynoecium occupies the highest position, while the other parts are situated below it.
• Margin of the thalamus grows upward, enclosing the ovary completely, and other parts arise below the ovary.
• Gynoecium is present in the centre and other parts cover it partially.
• Gynoecium is situated in the centre, and other parts of the flower are located at the rim of the thalamus, at the same level.
Correct Option: A  [ Gynoecium occupies the highest position, while the other parts are situated below it. ]

Remark:

Identify the correct features of Mango and Coconut fruits.
(I) In both fruit is a drupe
(II) Endocarp is edible in both
(III) Mesocarp in Coconut is fibrous, and in Mango it is fleshy
(IV) In both, fruit develops from monocarpellary ovary
Select the correct option from below :

NEET-(Oct)2020 [Morphology-of-Flowering-Plants] [class-xi ]

• (I), (III) and (IV) only
• (I), (II) and (III) only
• (I) and (IV) only
• (I) and (II) only
Correct Option: A  [ (I), (III) and (IV) only ]

Remark:

Which of the following is the correct floral formula of Liliaceae ?

NEET-(Oct)2020 [Morphology-of-Flowering-Plants] [class-xi ]

• Option-1
• Option-2
• Option-3
• Option-4
Correct Option: C  [ Option-3 ]

Remark:

Which of the following statements about cork cambium is incorrect?

NEET-(Oct)2020 [Anatomy-of-Flowering-Plants] [class-xi ]

• It forms secondary cortex on its outerside
• It forms a part of periderm
• It is responsible for the formation of lenticels
• It is a couple of layers thick
Correct Option: A  [ It forms secondary cortex on its outerside ]

Remark:

In cockroach, identify the parts of the foregut in correct sequence :-

NEET-(Oct)2020 [Structural-Organisation-in-Animals] [class-xi ]

• Mouth → Oesophagus → Pharynx → Crop → Gizzard
• Mouth → Crop → Pharynx → Oesophagus → Gizzard
• Mouth → Gizzard → Crop → Pharynx → Oesophagus
• Mouth → Pharynx → Oesophagus → Crop → Gizzard
Correct Option: D  [ Mouth → Pharynx → Oesophagus → Crop → Gizzard ]

Remark:

Match the following columns with reference to cockroach and select the correct option:

NEET-(Oct)2020 [Structural-Organisation-in-Animals] [class-xi ]

• (A)-(III), (B)-(I), (C)-(IV), (d)-(II)
• (A)-(IV), (B)-(III), (C)-(V), (d)-(II)
• (A)-(I), (B)-(IV), (C)-(III), (d)-(II)
• (A)-(II), (B)-(III), (C)-(I), (d)-(IV)
Correct Option: A  [ (A)-(III), (B)-(I), (C)-(IV), (d)-(II) ]

Remark:

Inclusion bodies of blue-green, purple and green photosynthetic bacteria are:

NEET-(Oct)2020 [cell-the-unit-of-life] [class-xi ]

• Contractile vacuoles
• Gas vacuoles
• Centrioles
• Microtubules
Correct Option: B  [ Gas vacuoles ]

Remark:

The biosynthesis of ribosomal RNA occurs in:

NEET-(Oct)2020 [cell-the-unit-of-life] [class-xi ]

• Ribosomes
• Golgi apparatus
• Microbodies
• Nucleolus
Correct Option: D  [ Nucleolus ]

Remark:

Match the following columns and select the correct option:

NEET-(Oct)2020 [cell-the-unit-of-life] [class-xi ]

• (A)-(II), (B)-(I), (C)-(III). (D)-(IV)
• (A)-(III), (B)-(I), (C)-(II), (D)-(IV)
• (A)-(IV), (B)-(II), (C)-(I), (D)-(III)
• (A)-(I), (B)-(II), (C)-(III), (D)-(IV)
Correct Option: A  [ (A)-(II), (B)-(I), (C)-(III). (D)-(IV) ]

Remark:

Which of the following elements helps in maintaining the structure of ribosomes?

NEET-(Oct)2020 [cell-the-unit-of-life] [class-xi ]

• Magnesium
• Zinc
• Copper
• Molybdenum
Correct Option: A  [ Magnesium ]

Remark: