Question:

18. What are the five main types of hormones found in plants? What and how are auxins involved in phototropisms and gravitropism

18. What are the five main types of hormones found in plants? What and how are auxins involved in phototropisms and gravitropism? Explain why plants grow towards the light and how auxins are involved. Explain why stems always grow up and roots always grow down and how auxins are involved.

18. What are the five main types of hormones found in plants? What and how are auxins involved in phototropisms and gravitropism? Explain why plants grow towards the light and how auxins are involved. Explain why stems always grow up and roots always grow down and how auxins are involved.

< PreviousNext >

More Questions on Plant Physiology - Growth & Development

View all
Sucrose synthase Starch synthase Sucrose Glucose Starch Figure 1. Simplified starch biosynthesis pathway in plants A rice grain is a fruit that encloses a seed. Most of the dry mass of a rice grain is starch. In rice plants, starch is produced by hydrolyzi

Biology

Plant Physiology - Growth & Development Solutions

Sucrose synthase Starch synthase Sucrose Glucose Starch Figure 1. Simplified starch biosynthesis pathway in plants A rice grain is a fruit that encloses a seed. Most of the dry mass of a rice grain is starch. In rice plants, starch is produced by hydrolyzing sucrose and then linking the released glucose molecules together into starch (Figure 1). The optimal temperature range for starch synthase activity in a particular strain of rice is 27°C-30°C. The optimal temperature range for sucrose synthase in the strain is 30°C-35°C. Describe how temperatures above 35°C most likely affect the structure and function of the starch synthase in the particular strain. Using the information provided, predict the most likely consequences to starch content in mature rice grains if the rice is grown in an area where the average temperature during the growing season is 33°C.

2 pts Question 13 T A 1 Which of these muscles is LESS likely to produce a TETANIC contraction? O All can produce tetanic contractions O A muscle with a refractory period of 100 milliseconds O None h O A muscle with a refractory period of 5 milliseconds O

Biology

Plant Physiology - Growth & Development Solutions

2 pts Question 13 T A 1 Which of these muscles is LESS likely to produce a TETANIC contraction? O All can produce tetanic contractions O A muscle with a refractory period of 100 milliseconds O None h O A muscle with a refractory period of 5 milliseconds O A muscle with a refractory period of 1 millisecond Next

Question 1 of 10 The Soviet Union and the United States nearly went to war with each other in 1962 when the United States discovered Soviet missiles on the island of Cuba. This event called the Cuban Missile Crisis, was resolved peacefully after several da

Biology

Plant Physiology - Growth & Development Solutions

Question 1 of 10 The Soviet Union and the United States nearly went to war with each other in 1962 when the United States discovered Soviet missiles on the island of Cuba. This event called the Cuban Missile Crisis, was resolved peacefully after several days of negotiations between U.S. and Soviet leaders, Which approach would a cultural historian take to the Cuban Missile Crisis? A. Describe the tactics the United States might have used to destroy the missiles in Cuba B. Map the locations of all the missiles and launch alles in Cuba during the crisis C. Interview U.S. and Soviet leaders about differences in customs that affected the negotiations D. Examine the long-term effects of the Cuban Missile Crisis on the U.S. and Soviet economies