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What is the transverse section of stem?

What is the transverse section of stem?

stem sections show that the vascular strands arise in a band of 2 circles-smaller bundles and larger bundles ( Figure 6A). Both types of vascular bundles are connected to each other and to the glabrous epidermis with the sclerenchyma as well. …

What are the difference between the transverse section of the stem and the root?

Key Differences Between Stems and Roots. Stems are positively phototropic (growing towards the light) negatively geotropic (grow away from the soil) and negatively hydrotropic, whereas Roots are positively geotropic, negatively phototropic (grow away from the light). Stems bear flower, leaves and buds, but roots do not …

How would you ascertain that transverse section of stem given to observe under microscope is a dicot stem Monocot stem?

One can ascertain whether the transverse section of young stem is of monocot or dicot by observing the vascular bundles. In monocot stem, vascular bundles are scattered whereas in dicot stem, they are arranged in a ring.

What is ts of monocot stem?

T.S or the transverse section of stem is the internal tissues of monocot stem and you can find four regions in these T.S tissues such as epidermis, hypodermis, ground tissues and vascular bundles. On the other part, vascular bundles contain xylem and phloem.

What is ts of dicot root?

The cells in T.S. appear polygon, and are thick walled. The protoxylem lies towards the periphery, so the xylem is called exarch. The protoxylem vessels bear annular and spiral thickenings while metaxylem vessels have reticulate and pitted thickenings.

What is a cross section of a root?

Cross section of a root: axis of the plant which grows in the opposite direction from the stem, maintain the plant in place and absorbs nutrients.

Is potato a root or stem?

Potatoes, grown in cooler climates or seasons around the world, are often thought of as roots because they usually grow in the ground. But technically they are starchy, enlarged modified stems called tubers, which grow on short branches called stolons from the lower parts of potato plants.

How do you know if its a root or a stem?

Stem shows positively phototropic and negatively geotropic growth. Stem possess nodes and internodes. Branches, leaf, flower bud and bracts are developed from nodes. Root: Root is the part of the plant which lies below the surface of the soil.

How do you prepare transverse sections of plant roots?

Cut a number of sections along the edge of the blade, then slide the sections off the blade into water in a petri plate, using a small wooden stick trimmed to a spatula shape. Use these sticks to pick up and manipulate the sections. The sections are most visible if the petri plate is kept on a black surface and well-illuminated.

How to draw transverse sections in biology lab?

1. The light microscope was plugged into a power source, and switched on. 2. The coarse focus of the light microscope was adjusted with both hands to move the stage downwards. 3. The slide with the dicotyledonous stem section was placed on the stage, and secured with the clips.

Where is the transverse section of a sunflower stem?

To study the transverse section of a dicot stem, a sunflower stem. The transverse section depicts the arrangement of different tissues in a particular way from the exterior to the center as listed below: (a) Hypodermis – It is situated just below the epidermis and consists of 4 to 5 layers of collenchymatous cells.

How is the transverse section of the dicot stem differentiated?

Transverse Section (T.S.) of Dicot Stem (Sunflower) It can be differentiated into: Hypodermis consists of 3-5 layers of collenchyma without spaces. It contains thickenings by the deposition of extra cellulose with pectin and gives mechanical support. Due to the presence of chloroplast, it also helps in photosynthesis.

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