Question

Paul measures the length of two strips of Papa and then places them in a beaker of water as shown in the diagram below. In the second beaker, draw how the paw-paw strips would have appeared after Paul had left them in the water for 30 minutes.

Answer 1

After placing paw-paw strips in water for 30 minutes, osmosis will cause the strips to swell or shrink depending on the tonicity of the water. The strips might appear turgid if the water is hypotonic or flaccid if the water is hypertonic.

Step-by-step explanation:

The question refers to an experiment that involves observing changes in the length of two strips of paw-paw after they have been left in water for 30 minutes. This experiment is likely related to the concepts of osmosis and diffusion, biological processes that refer to the movement of water and solutes across semi-permeable membranes. Given that paw-paw strips are plant tissues, which are made up of cells with semi-permeable membranes, placing them in water would cause the cells to either gain or lose water due to osmosis.

After 30 minutes, we would expect the paw-paw strips in the beaker of water to appear either swollen or shrunken, depending on the osmotic conditions. If the water is hypotonic relative to the plant cells (meaning the water has a lower concentration of solutes than the cells), water will enter the cells, causing them to swell. This could make the strips appear more turgid. If the water is hypertonic (has a higher concentration of solutes), water will leave the cells, causing them to shrink and the strips to appear flaccid.

In an actual diagram based on the results of the experiment, we would depict these changes accordingly, illustrating either the swollen or shrunken appearance of the paw-paw strips post-osmosis.

Answer 2

The question concerns Biology, specifically diffusion and osmosis, whereby after 30 minutes, paw-paw strips in water will appear swollen due to the uptake of water through osmosis, demonstrating a key biological principle.

Step-by-step explanation:

The subject of this question is Biology, specifically related to the concepts of diffusion and osmosis.

After leaving the paw-paw strips in the water for 30 minutes, the strips would likely appear swollen or increased in size.

This change is due to osmosis, where water moves from an area of lower solute concentration (the water in the beaker) to an area of higher solute concentration (the paw-paw strips).

This net movement of water into the cells of the paw-paw strips leads to the strips taking in water and expanding.

To visualize this in a drawing, you would sketch the paw-paw strips wider than they were initially, indicating the uptake of water.

This process demonstrates a fundamental biological principle impacting cell volume and integrity, which is essential for understanding cell function and homeostasis.