karenjunior
30.08.2019 •
Biology
What is the driving force for the movement of materials in the phloem of plants?
a. gravity
b. a difference in pressure potential between the source and the sink
c. root pressure
d. transpiration of water through the stomates
Solved
Show answers
More tips
- H Health and Medicine Trading Semen for Money: Where Can You Sell and Why Would You Want to?...
- L Leisure and Entertainment What Movies You Should Watch: A Guideline to Make the Right Decision...
- F Family and Home How to Choose a Baby Stroller: Tips from Experienced Parents...
- H Health and Medicine 5 Simple Steps to Quit Smoking for Good...
- H Health and Medicine Coughing: Causes, Types, and Treatment Methods...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
Answers on questions: Biology
- B Biology Which of the following is a limiting factor in lotic ecosystems? a. pH b. salinity C. light intensity d. all of the above...
- B Biology 2. Did you notice a difference in the rate of respiration between the various sugars? Did the artificial sugar provide a good starting material for fermentation?...
- B Biology Scenario #2 In 2001, a population of 2,500 poison dart frogs lived in the Amazon rain forest. Due to increased deforestation, the population dwindled to 25 frogs...
- B Biology Cual fue la estructura de Lewis para la molecula de agua...
- B Biology What is phychologist...
- B Biology X. , the first time the change hjejekdjkekjb6783876939848499499384884839388 height hj jkek krill that the best. if I had the same thing as well, but the only one...
- B Biology Anyone knows someone good in biology i need them for exam please asp...
- B Biology A woman who is a carrier for #1 hemophilia and a man that does not have the condition have children. What is the probability that they will have a child with the...
- B Biology Which of the following statements is NOT true? A. Mutations can be harmful. B. Mutations are important to evolution. C. Mutations can be beneficial. D. Mutations...
- B Biology What happens to an enzyme if the temperature varies too far from the enzyme s optimum (or best) temperature?...
Ответ:
The corrects answer is option B.
Explanation:
The phloem is a structure present in the plant that helps in the translocation of the sugar, amino acids and other material from a source and the sink. This concentrated solution is known as sap. The translocation of the sap is bidirectional in the phloem. The site from the material move called source and the destination is known as the sink.
The driving force for the translocation of the materials is translocated by the pressure potential gradient between the source and the sink sites. It is a mode of active transport.
Thus, the correct answer is option B.
Ответ:
Cultures with single cell types behave in culture exactly as they would behave in a tissue or organ.