NEET Botany MCQs

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

• 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.

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

• (I), (III) and (IV) only
• (I), (II) and (III) only
• (I) and (IV) only
• (I) and (II) only

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

• Option-1
• Option-2
• Option-3
• Option-4

Which of the following statements about cork cambium is incorrect?

• 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

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

• Monocotyledonous stem
• Monocotyledonous root
• Dicotyledonous stem
• Dicotyledonous root

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

• Contractile vacuoles
• Gas vacuoles
• Centrioles
• Microtubules

The biosynthesis of ribosomal RNA occurs in:

• Ribosomes
• Golgi apparatus
• Microbodies
• Nucleolus

Match the following columns and select the correct option: <table> <tr> <th>Column-I </th> <th>Column-II</th> </tr> <tr> <td>(A)Smooth endoplasmic reticulum</td> <td>(I)Protein synthesis</td> </tr> <tr> <td>(B)Rough endoplasmic reticulum </td> <td>(II)Lipid synthesis</td> </tr> <tr> <td>(C)Golgi complex</td> <td>(III)Glycosylation</td> </tr> <tr> <td>(D)Centriole</td> <td>(IV)Spindle formation</td> </tr> </table>

• (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)

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

• Magnesium
• Zinc
• Copper
• Molybdenum

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

• Endoplasmic reticulum
• Peroxisomes
• Golgi bodies
• Polysomes