1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sasho [114]
3 years ago
5

Which theory of water transport in xylem can also be used to explain the primary movement of water in nonvascular plants such as

mosses? A) cohesion-tension B] capillarity C) proton pump D) air pressure E) active transport by tracheid and vessel elements
Biology
1 answer:
I am Lyosha [343]3 years ago
7 0

The correct answer is: A) cohesion-tension

Water movement in xylem of plants is passive process that is driven by pressure and chemical potential gradients. Xylem is plant tissue that transports water from roots to leaves. This upward water flow (against the force of gravity) through the xylem of plants is possible because of water properties.

Cohesion refers to cohesive force between water molecules which attracts them towards each other. As a result surface tension in liquid water occurs.

Tension is the result of transpiration. Negative pressure is generated by the evaporation of water from the leaves (transpiration).  

So, transpiration pull (via capillary action and the inherent surface tension of water) is responsible for water movement upwards.  

 

You might be interested in
Why does incomplete dominance not support the blending theory of inheritance?
Nookie1986 [14]
Incomplete dominance can happen in flowers such as snap dragons where a red flower plant and a white flower plant have an offspring that is neither red nor white but is a mix so in this case it would be pink. It does not support the blending theory as it does not get its colour from the dominant plant in this case but from both.
5 0
3 years ago
Only girls joined qpz-uxnm-kfo fast
Zarrin [17]

Answer:

This app is only for education

3 0
2 years ago
Read 2 more answers
Describe the process of seed germination
Slav-nsk [51]
Basically the seed contains 2 parts, the testa, which is the seed coat that protects the seed and cotelydon, which is the inside of the seed, containing the radical and plumle.
for seed to germinate, we need 3 basic conditions,
warmth, it is the suitable temperature for seed germination, it can influence the activity of enzymes. providing a optimum temperature
water, to soften down the testa so that the shoot can break out from the testa
and oxygen, for aerobic respiration
.
If these conditions are absent, the seed may be in the state of dormancy. where is won't germinate until it meets the suitable conduction.
after that, the enzyme will digest the nutrient inside the seed and provide amino acid, which is necessary to seed germination. and meanwhile the aerobic respiration provides energy, so that the plumlecan shoot out, and be the shoot of the plant.
and then until it grows leaves, it'll start to complete photosynthesis, instead of using the nutrients inside the cotelydon.
7 0
3 years ago
What is the position of the earth in relation to the sun in the summer?
mamaluj [8]
The sun gets closer to the earth
3 0
3 years ago
Evolution of new traits is possible because of
Ivan

Answer:

transfer of genes between populations, as in migration, or between species, in horizontal gene transfer. Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.

8 0
3 years ago
Other questions:
  • in a dna molecule, the complementary strands are joined at the nucleotides by hydrogen bonds between the
    10·1 answer
  • Working from deep geologic strata toward shallow geologic strata, what is the sequence in which fossils of these groups should m
    5·1 answer
  • 1) What are the two parts of the nervous system?
    7·1 answer
  • Do eukaryotic cells replicate their DNA in the cytoplasm and nuclus?
    13·1 answer
  • Select the correct answer.
    10·1 answer
  • At which time has the turtle population reached the carrying capacituy of the pond
    7·2 answers
  • The cytoplasm of a certain cell, such as a neuron, already has a high concentration of K ions. How can K ions continue to enter
    12·1 answer
  • Millions of species exist today. Based on Darwin's theory of evolution, which of the following best explains how this is possibl
    7·2 answers
  • which types of organisms are most likely to survive change in an ecosystem, those that have a narrow ecological niche or those t
    9·1 answer
  • The executive branch?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!