Paste Styles 5. A red blood cell is placed into a hypertonic solution. What will
ID: 147007 • Letter: P
Question
Paste Styles 5. A red blood cell is placed into a hypertonic solution. What will happen? a. b. c. d. e. Water moves out of the cell, and the cell shrinks and shrivels. Water moves into the cell, and the cell swells. Water does not move, and the cell stays the same size. The cell clumps together with other red blood cells, causing clotting. The cell picks up oxygen and carries it to other cells in the body. 6. Sabrina spent a week in the Florida Keys on vacation. She noted that her skin felt very dry after each day she spent at the beach. Explain why Sabrina's skin felt dry using the scientific words, isotonic, hypertonic and hypotonic. Osmosis is useful in plants because it is one of the processes used to manage water volurde inside the plant. The diagram shows part of a plant root. The cell membrane is a partially permeable membrane. 7. How do you think the mineral salts get into the root hair cells? Explain your answer 8. How does the high coecentration of mineral salts inside the root hair cell help the plant to absorb water from the soil? Page 2 of 2 348 words FocusEExplanation / Answer
5. a. the water moves out of the cell and cell shrinks. When any cell is kept in hypertonic solution i.e. concentration of water is less outside the cells, the water from cell will move alon the concentration gradient (high to low) and will come out of the cell as a result of which cell will shrink.
6.Sabrina's dry skin indicates that her cells are loosing water. This may happen because the atmosphere around her may have low moisture content (hypertonic) as a result of which water is lost from her skin towards the atmosphere and her skin feels dry.
7.
a. plants while absorbing water from the soil via roots, also absorb the dissolved minerals present in the water. Mineral salts generally travel in the specialised system called the phloem that is known to carry the mineral salts throughout the plant. Mineral salts can travel in the spaces between two cells through the plasmodesata, not necessary to go inside the cell.
b. The high concentration of salt inside the root hair makes the inner environment of root hair hypertonic (low water, high salts) as compared to the surrounding soil(high water, low salts). As a result, water from outside moves into the root hair. (water moves from a region with high concentration of water to low concentration of water)