LGP 26-B3 Day 3
Jun 05, 2026 • 5:23 PM UTC
India
140x Magnification
Plants
Srijil Choudhury
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1) Tomato Flesh:
Sample Preparation: Take a thin sample of potato flesh and place it on the glass slide. Muddle it very slightly and clear the slide of debris. Fix the remains of the flesh using clear tape.
50x: Water-like fluid observed. Reddish-orange colour observed. Cells are rounded. Very loose structure present with dispersed cells.
140x: Cells are more prominent. Upon further observation, cells appear to be large and circular with a distinct dark nucleus located centrally. Cells are transparent. Distinct reddish-orange colour still visible.
340x: Cells more prominent. Large in size with prominent cell wall. Large vacuoles also present. Cells mostly transparent and circular.
Sample Preparation: Take a thin sample of potato flesh and place it on the glass slide. Muddle it very slightly and clear the slide of debris. Fix the remains of the flesh using clear tape.
50x: Water-like fluid observed. Reddish-orange colour observed. Cells are rounded. Very loose structure present with dispersed cells.
140x: Cells are more prominent. Upon further observation, cells appear to be large and circular with a distinct dark nucleus located centrally. Cells are transparent. Distinct reddish-orange colour still visible.
340x: Cells more prominent. Large in size with prominent cell wall. Large vacuoles also present. Cells mostly transparent and circular.
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2) Tomato Rind:
Sample Preparation: Take a thin sample of the tomato peel and place it on the glass slide. Fix it in place using clear tape.
50x: Tomato peel visible in a macroscopic view. Distinct reddish-orange colour visible. Individual cells not clearly legible.
140x: Cells more prominent. Reddish-orange colour still visible. Cells more compact and denser in structure with prominent cell wall.
340x: Cells more distinct with a prominent orange colour. Hexagonal in shape. Thick cell walls present.
3) Sunflower Pollen:
Sample Preparation: Place a piece of clear tape and press it on the anthers of a flower and then remove it to collect pollen. Repeat the process 2-3 times to increase accuracy. Place the tape on a glass slide.
50x: Pollen grains appear rounded. Singular grain observed. Yellow colour prominent.
140x: Pollen grains appear circular. They appear yellow in colour. They are clearly distinguishable.
340x: Distinct pollen grains observed with prominent spiky extensions. Pollen grains observed to be yellow in colour. Intine and exine clearly distinguishable. Cells are elliptical in shape.
4) Periwinkle Pollen:
Sample Preparation: Tap the androecium of a periwinkle flower with clear tape gently two-to-three times so as to collect pollen grains. Place the piece of tape on the glass slide.
50x: Pollen grains visible in a macroscopic view. They are small and colourless. They are grouped.
140x: Cells are more distinctly visible. Colourless and slightly elliptical in shape. Exine identifiable, although not yet distinguishable from intine.
340x: Cells are more prominent with three-dimensional features visible. Colourless in nature. Spikes are indistinguishable. Shapes are elliptical in nature (bean-shaped). Pollen grains present in groups, thus inferable that Periwinkle pollen is smaller is size than sunflower pollen. Central ridge present. Exine and intine distinguishable.
Sample Preparation: Take a thin sample of the tomato peel and place it on the glass slide. Fix it in place using clear tape.
50x: Tomato peel visible in a macroscopic view. Distinct reddish-orange colour visible. Individual cells not clearly legible.
140x: Cells more prominent. Reddish-orange colour still visible. Cells more compact and denser in structure with prominent cell wall.
340x: Cells more distinct with a prominent orange colour. Hexagonal in shape. Thick cell walls present.
3) Sunflower Pollen:
Sample Preparation: Place a piece of clear tape and press it on the anthers of a flower and then remove it to collect pollen. Repeat the process 2-3 times to increase accuracy. Place the tape on a glass slide.
50x: Pollen grains appear rounded. Singular grain observed. Yellow colour prominent.
140x: Pollen grains appear circular. They appear yellow in colour. They are clearly distinguishable.
340x: Distinct pollen grains observed with prominent spiky extensions. Pollen grains observed to be yellow in colour. Intine and exine clearly distinguishable. Cells are elliptical in shape.
4) Periwinkle Pollen:
Sample Preparation: Tap the androecium of a periwinkle flower with clear tape gently two-to-three times so as to collect pollen grains. Place the piece of tape on the glass slide.
50x: Pollen grains visible in a macroscopic view. They are small and colourless. They are grouped.
140x: Cells are more distinctly visible. Colourless and slightly elliptical in shape. Exine identifiable, although not yet distinguishable from intine.
340x: Cells are more prominent with three-dimensional features visible. Colourless in nature. Spikes are indistinguishable. Shapes are elliptical in nature (bean-shaped). Pollen grains present in groups, thus inferable that Periwinkle pollen is smaller is size than sunflower pollen. Central ridge present. Exine and intine distinguishable.
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