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:

The transverse section of a plant shows following anatomical features:
(a) Large number of scattered vascular bundles surrounded by bundle sheath.
(b) Large conspicuous parenchymatous ground tissue.
(c) Vascular bundles conjoint and closed.
(d) Phloem parenchyma absent.
Identify the category of plant and its part:

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

• Monocotyledonous stem
• Monocotyledonous root
• Dicotyledonous stem
• Dicotyledonous root
Correct Option: A  [ Monocotyledonous stem ]

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:

Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?

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

• Endoplasmic reticulum
• Peroxisomes
• Golgi bodies
• Polysomes
Correct Option: C  [ Golgi bodies ]

Remark: