Question

Jade places a fresh, thin slice of onion on a microscope slide to look for evidence that an onion is made of cells. Describe two observations Jade could make to provide evidence that an onion is made of cells.

Answer 1

Answer:

Two Observations Made by her-

1) She can see a group of cells with Thich Cell Walls seperating them

2)Nicleus of the cell (A distinct Black Dot) is visible in the centre of each cell

Answer 2

The two observations made were:

1. Collection of cells with thick cell walls dividing them was observed.
2. Each cell has a characteristic black dot in the middle that is the nucleus.

• By using a light microscope, it is rather simple to see the primary onion cell structures at medium magnification levels.
• The cells have thick cell walls, a big, round nucleus, and an elongated appearance.
• They are comparable in size, colour, and shape.
• Large, rectangular, interlocking cells with a visible cell wall, a visible nucleus, massive vacuoles, and a few granules make up the organism.
• A cell in an onion is not green.
• They don't receive any light, hence they don't need chloroplasts.
• Because the central vacuole occupies the majority of the space and pushes them outside of the cell, they are most commonly seen there.
• Observing the configuration and structural elements of the onion epidermis is the primary goal of the onion peel cell experiment.

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