Monocot vs. Dicot Stem Anatomy

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29 Questions

The trichomes are present in monocot stems.

False

Monocots undergo secondary growth which leads to the replacement of epidermis.

False

The hypodermis in dicot stems consists of collenchyma cells that can prepare food for the plant.

False

The general cortex region stores the food prepared by the hypodermis cells in dicot stems.

True

The endodermis in dicot stems is a single-layered tissue with barrel-shaped cells that store a large amount of starch.

True

The cortex in monocot stems consists of three distinct regions similar to dicot stems.

False

Stems are a part of the root system of a plant.

False

The main function of stems is to transport food from roots to leaves in a plant.

False

Stomata in the stem play a role in the process of photosynthesis.

False

In plants like cactus, the stem stores water and food to prevent water loss.

True

The Zone of Elongation in an elongating stem is where meristem cells undergo rapid mitosis.

False

The internal structure of both monocot and dicot stems consists of a compact layer of thick-walled cells as the epidermis.

False

In monocot stems, the hypodermis is more elastic than in dicot stems.

False

The ground tissue in monocot stems is differentiated into distinct units.

False

Pericycle in dicot stems is primarily composed of sclerenchyma cells.

False

Medullary rays function to protect the vascular bundles in plant stems.

False

Vascular bundles in dicot stems are arranged scattered throughout the stem.

False

Each vascular bundle in dicot stems is collateral, exarch, and closed.

False

The endodermis is present in both monocot and dicot stems.

False

The differentiated cortex in the stem consists of parenchyma and sclerenchyma cells.

False

The vascular bundles in monocot stems are mostly uniform in size.

False

In dicot stems, the vascular bundle is open, collateral, and endarch.

True

The bundle sheath fiber is present in both monocot and dicot stems.

False

In monocot stems, the vascular bundles are scattered in the ground tissue or the cortex.

True

The vascular bundles in monocot stems are radial, exarch, and open.

False

The pith region in dicot plants is well developed and differentiated.

True

Epidermal hairs are present in both monocot and dicot stems.

False

The hypodermis layer in monocot stems consists of sclerenchyma cells.

False

The vascular bundles in monocot stems consist of xylem towards the periphery and phloem towards the center.

False

Study Notes

Monocot Stem Characteristics

  • Trichomes are present in monocot stems.
  • Monocots undergo secondary growth, leading to the replacement of epidermis.
  • The cortex in monocot stems consists of three distinct regions.
  • The hypodermis in monocot stems is more elastic than in dicot stems.
  • The ground tissue in monocot stems is differentiated into distinct units.
  • Vascular bundles in monocot stems are mostly uniform in size.
  • Vascular bundles in monocot stems are scattered in the ground tissue or the cortex.
  • Vascular bundles in monocot stems are radial, exarch, and open.
  • Vascular bundles in monocot stems consist of xylem towards the periphery and phloem towards the center.

Dicot Stem Characteristics

  • The hypodermis in dicot stems consists of collenchyma cells that can prepare food for the plant.
  • The general cortex region in dicot stems stores the food prepared by the hypodermis cells.
  • The endodermis in dicot stems is a single-layered tissue with barrel-shaped cells that store a large amount of starch.
  • Pericycle in dicot stems is primarily composed of sclerenchyma cells.
  • Vascular bundles in dicot stems are arranged scattered throughout the stem.
  • Each vascular bundle in dicot stems is collateral, exarch, and closed.
  • The pith region in dicot plants is well developed and differentiated.

General Stem Characteristics

  • Stems are a part of the root system of a plant.
  • The main function of stems is to transport food from roots to leaves in a plant.
  • Stomata in the stem play a role in the process of photosynthesis.
  • In plants like cactus, the stem stores water and food to prevent water loss.
  • The Zone of Elongation in an elongating stem is where meristem cells undergo rapid mitosis.
  • The internal structure of both monocot and dicot stems consists of a compact layer of thick-walled cells as the epidermis.
  • The differentiated cortex in the stem consists of parenchyma and sclerenchyma cells.
  • Medullary rays function to protect the vascular bundles in plant stems.
  • Bundle sheath fiber is present in both monocot and dicot stems.
  • Epidermal hairs are present in both monocot and dicot stems.

Test your knowledge on the differences between monocot and dicot stem anatomy, including the composition of the cortex region, hypodermis characteristics, and ground tissue differentiation. This quiz is based on Plant Anatomy Lecture 12 in Biology, taught by Dr. Shilan.

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