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  • Flowering Plants: Nutrition and Transport

Biology

Sylvia S. Mader, Michael Windelspecht

Chapter 25

Flowering Plants: Nutrition and Transport - all with Video Answers

Educators

MC
KJ
+ 1 more educators

Chapter Questions

06:08

Problem 1

A nutrient element is considered essential if
a. plant growth increases with a reduction in the concentration of the element.
b. plants die in the absence of the element.
c. plants can substitute a similar element for the missing element with no ill effects.
d. the element is a positive ion.

MC
Michael Corsi
Numerade Educator
01:59

Problem 2

Humus
a. supplies nutrients to plants.
b. is basic in its pH.
c. is found in the deepest soil horizons.
d. is inorganic in origin.

Grant Castaneda
Grant Castaneda
Numerade Educator
02:33

Problem 3

Soils rich in which type of mineral particle will have a high waterholding capacity?
a. sand
b. silt
c. clay
d. All soil particles hold water equally well.

Brandi Roebuck
Brandi Roebuck
Numerade Educator
01:35

Problem 4

Negatively charged clay particles attract
a. $\mathrm{K}^{+}$.
b. $\mathrm{NO}_{3}^{-}$.
c. $\mathrm{Ca}^{2+}$.
d. Both a and b are correct.
e. Both a and c are correct.

Grant Castaneda
Grant Castaneda
Numerade Educator
03:16

Problem 5

The Casparian strip affects
a. how water and minerals move into the vascular cylinder.
b. vascular tissue composition.
c. how soil particles function.
d. cation exchange.
e. Both a and c are correct.

KJ
Kameka Johnson
Numerade Educator
02:15

Problem 6

Nitrogen-fixing bacteria
a. reduce atmospheric nitrogen.
b. can live independently in the soil.
c. are usually associated with legume plants.
d. break $\mathrm{N}=\mathrm{N}$ bonds.
e. All of these are correct.

Grant Castaneda
Grant Castaneda
Numerade Educator
02:39

Problem 7

Which of the following is not an adaptation by plants to obtain minerals?
a. specialized leaves that capture insects
b. parasitic plants, such as a dodder
c. mycorrhizal associations
d. nitrogen-fixing bacteria in root nodules
e. broad leaves in low sunlight

Kayley Cruz
Kayley Cruz
Numerade Educator
02:30

Problem 8

The opening in the leaf that allows gas and water exchange is called the
a. lenticel.
b. hole.
c. stoma.
d. guard cell.
e. accessory cell.

Grant Castaneda
Grant Castaneda
Numerade Educator
01:50

Problem 9

Stomata are usually open
a. at night, when the plant requires a supply of oxygen.
b. during the day, when the plant requires a supply of carbon dioxide.
c. day or night if there is excess water in the soil.
d. during the day, when transpiration occurs.
e. Both b and d are correct.

SL
Stephanie Lewis
Numerade Educator
02:27

Problem 10

What role do cohesion and adhesion play in xylem transport?
a. Like transpiration, they create a tension.
b. Like root pressure, they create a positive pressure.
c. Like sugars, they cause water to enter xylem.
d. They create a continuous water column in xylem.
e. All of these are correct.

Grant Castaneda
Grant Castaneda
Numerade Educator

Problem 11

After sucrose enters sieve tubes,
a. it is removed by the source.
b. water follows passively by osmosis.
c. it is driven by active transport to the source, which is usually the roots.
d. stomata open so that water flows to the leaves.
e. All of these are correct.

Check back soon!
02:46

Problem 12

The pressure-flow model of phloem transport states that
a. phloem content always flows from the leaves to the root.
b. phloem content always flows from the root to the leaves.
c. water flow takes sucrose from a source to a sink.
d. water pressure creates a flow of water toward the source.
e. Both c and d are correct.

Grant Castaneda
Grant Castaneda
Numerade Educator

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