Exam 25: Growing a Green Thumb: Plant Physiology

Which hormone promotes the abscission of leaves and fruits?

Which plants drop their leaves on an annual basis?

What is the time from the final frost in the spring to the first frost in the fall?

Which adaptation is found in the leaves of cacti?

What will happen after a gardener cuts off all the developing flowers on a tomato plant, with the exception of 12 of the flowers that have already been pollinated and set fruit?

What might result from the overwatering of houseplants and garden plants?

Which plant is a perennial?

When have many deciduous plants adapted to drop their leaves?

Which type of plant would have the greatest rate of transpiration during the day?

In plants, how are the sugars produced from photosynthesis moved around?

Which phenomena drives transpiration in a terrestrial woody plant?

Many garden plants that are grown for leaves or roots, such as parsley and carrots, produce vegetative growth the first year and reproductive structure growth the second year. Thus, what type of plants are parsley and carrots?

What is contained within the xylem sap of a plant?

What is the tendency for plants that live on other plants (epiphytes) to send shoots upward while sending roots down toward the ground?

Which plant is best adapted to prevent an embolism in their xylem tubes?

In what direction do the sugars in a peach tree move?

What is the purpose of plant hormones?

If the sugary phloem sap in a fruit tree is divided into many sugar sinks, then how will each individual fruit be affected?

Through what process do deciduous plants drop their leaves?

What do the roots emerging from germinating seeds exhibit?