Answer these multiple choice questions UNIT COLLEGE BOARD REVIEW (continued) Pla

Question

Answer these multiple choice questions

UNIT COLLEGE BOARD REVIEW (continued) Plant Maintenance Directions: Questions 27-30 refer to the two graphs given below. The effect of a lack of water on the photosynthetic and transpiration rates in plants was examined. Corn and geranium plants were deprived of water for 11 days. On the twelfth day, water was added to the.soil. The photosynthetic and transpiration rates were determined each day for the length of the experiment. The results for the corn plants are presented in Graph 1, and those for the geraniums in Graph 2. First study the graphs. Then choose the one best answer to each question following them. PART D GRAPH 2 GRAPH 1 100 100 Photosynthesis Transpiration 20 10 Number of days 15 20 15 10 Number of days 27 27. The photosynthetic rate of the corn plants (A) decreased steadily until water was restored to the soil (B) was always higher than the transpiration rate (C) was unaffected by the lack of water (D) was lowest between days 5 and 10 (E) was lowest on day 12 28. The transpiration rate of the geraniums 28. (A) recovered quickly after the addition of water (B) was never equal to the photosynthetic rate (C) decreased sharply on day 1 (D) was unaffected by the lack of water (E) was lowest on day 7 29. The dips in the transpiration rate curves shown in Graphs 1 and 2 were most likely due to 29. (A) the opening of the stomates in the leaves (B) an increased activity of chloroplasts in the lenticels (C) the closing of the stomates in the leaves (D) an obstruction of the root hairs (E) a reversal of the concentration gradient in the xylenm 30. The best conclusion to draw from the data given in these graphs is that 30. (A) geranium and corn plants can live no longer than 11 days without water 8) all plants carry on photosynthesis only as long as transpiration occurs (C) geraniums are more drought-resistant than corn plants D) a relationship seems to exist between transpiration rate and photosynthetic rate in geranium and corn plants (E) corn plants would be better suited to life on the prairie than would geraniums COFFRICHTED by Prentice Hall, Inc Use af this tmaterial is restricsed t0 duplication from this master CB-14 BIOLOGY: The Study of Life

Explanation / Answer

answers are provided below in a sequential manner

27) was lowest on day 12

28) recovered quickly after the addition of water.

29) The closing of the stomates in the leaves.

30)a relationship seems to exist between transpiration rate and photosynthetic rate in geranium and corn pllants.

Feel free to leave a comment down below for any further query. Thank you.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.