Plant and Flower Anatomy

VASCULAR BUNDLE IN DICOT ROOT IS

• OPEN AND CONJOINT

• CLOSED AND CONJOINT

• OPEN AND RADIAL

• CLOSED AND RADIAL

COMPLEX PERMANENT TISSUE FOUND IN

• PARENCHYMA

• COLLENCHYMA

• XYLEM

• PHLOEM

• BOTH XYLEM AND PHLOEM

Tags

NGSS.HS-LS1-4

PROTO XYLEM IS CALLED ENDARCH IF

• PROTOXYLEM IS PRESENT TOWARDS PITH AND METAXYLEM TOWARDS PERIPHERY

• METAXYLEM IS PRESENT TOWARDS PITH AND PROTOXYLEM TOWARDS PERIPHERY

• BOTH 1 AND 2

• NEITHER OF THESE

DORSIVENTRAL LEAF HAS MORE STOMATA GENERALLY ON

• ABAXIAL SURFACE

• ADAXIAL SURFACE

• BOTH SURFACES

• NEITHER OF THESE

IF A DICOT STEM HAS 100 DARK AND LIGHT RINGS ON THE CUT SURFACE THEN THE AGE OF THE PLANT WILL BE

• 100 YEARS

• 75 YEARS

• 50 YEARS

• 25 YEARS

THE VASCULAR BUNDLES SHOWN IN THIS PICTURE ARE

• OPEN AND CONJOINT

• OPEN AND RADIAL

• CONJOINT AND CLOSED

• RADIAL AND CLOSED

In certain plant organ cells were found to be isodiametric, thin cellulosic cell walled and loosely packed having intercellular space. Which type of plant tissue is being discussed here?

• Parenchyma
• Collenchyma
• Sclerenchyma
• Phloem

Which of the following statements is incorrect about Collenchyma tissue?

• Generally occurs below epidermis in dicot plants
• Cells have thickened corners due to deposition of lignin
• They are oval, spherical or polygonal shaped cells
• Intercellular spaces are absent

Which of the following statements is true about Sclereids?

• These are constituent cells of Collenchyma tissue
• They are living cells with very narrow lumen (Cavity)
• They donot provide mechanical strength to plants
• The gritty pulp of fruits like guava and pear is due to it's presence

Jute, Flax and Hemp are of commercial importance. To which part of the plant do they belong to?

• Phloem Fibres
• Xylem Fibres
• Sieve tube
• Tracheids