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
nirvana33 [79]
3 years ago
8

Abscisic acid also know as ABA is plant hormone.Scientists have linked ABA with the opening and closing of the small air passage

ways in this plants leaves called stoma.what environmental condition is most likely to trigger the closing of leaf stoma
Biology
2 answers:
Oliga [24]3 years ago
6 0

Answer:

D

Explanation:

I did that question too, in usatestprep

yulyashka [42]3 years ago
5 0

environmental condition is most likely to trigger the closing of leaf stoma are If the environment the difference in water vapor content in the air and in the intercellular space exceeds the critical

<h2>Further explanation </h2>

Stomata generally open at sunrise and close at dark, so that CO2 is needed for photosynthesis during the day. Generally, the stomata opening process takes one hour. Stomata are also sensitive to atmospheric humidity.

The movement of pore stomata is caused by changes in the volume of guard cells that are regulated by the entry and exit of K + ions and other ions to and from guard cells during the opening and closing of the stomata. Besides light, CO2 concentration, humidity, and plant hormones are some of the factors that influence the opening and closing of stomata. Light causes the opening of the stomata while dark conditions can increase CO2 concentrations and decrease humidity which results in the closing of the stomata. Among the many plant hormones, ABA (abscisic acid) and auxin are plant hormones that influence the movement of stomata. ABA (abscisic acid) causes stomata to close, whereas auxin causes opening .

Other factors that cause stomata opening and closing are as follows: 1. Carbon dioxide (CO2) 2. Light 3. Temperature 4. Leaf Water Potential 5. Humidity 6. Wind

<h3>Learn More :</h3>

Abscisic acid; brainly.com/question/13800529

Stoma ABA; brainly.com/question/13579754

<h3>Details</h3>

Class: Junior High

Subject: Biology

Keywords: Stoma, Abscisic acid, Hormones.

You might be interested in
Which is true regarding the mediated transport of a substance across a plasma membrane? it depends upon the binding of that subs
Maurinko [17]
Both "depends upon the binding of that substance to a specific site on the membrane protein" and "depends upon movement of proteins from one side of the membrane to the other" are correct.

The saturation effect prevents statement 2 from being true.
3 0
3 years ago
In an endothermic reaction products are_in potential energy and stable than reactants.
Vika [28.1K]

The enthal difference between the reactants and the products is equal to the amount of energy released to the surroundings. ... A reaction in which energy is absorbed from the surroundings is called an endothermic reaction. In endothermic reactions the enthalpy of the products is greater than the enthalpy of the reactants.

5 0
3 years ago
The important organ of the high level of plants
Leno4ka [110]
Roots and leaves
The major driving force of water uptake in a large tree is transpiration.Transpiration is the process  by which plants absorb water through the roots and release it as water vapor through the pores in their leaves. Once this water evaporates, a negative water vapor pressure is created or develops in the surrounding cells of the leaf.   when this happens, water is pulled into the leaf from the vascular system, the xylem, to replace the water that has been transpired from the leaf.This pulling of water, or tension, that occurs in the leaf, will extend through the rest of the xylem column of the tree right into the xylem of the roots as result of the cohesive force holding the water molecules  along the sides of the xylem tubing.The xylem is a continuous water column extending from the roots to the leaves.<span>Finally, the negative water pressure that occurs even to the  roots will result in an increase of water uptake from the soil.</span>
8 0
4 years ago
Read 2 more answers
What type of energy transformation takes place when a reaction produces a spark of light?
Verizon [17]

Answer:

When you strike a match, it moves through the air until it rubs against a surface. The rubbing produces the heat required to light the match. This is a transformation from mechanical energy to thermal (heat) energy.

Explanation:

5 0
4 years ago
Describe the relationship between carrying capacity and earths resources
anzhelika [568]
Carrying capacity is the ability of an area to support a population using earth's natural resources. Things like food and water.
3 0
3 years ago
Read 2 more answers
Other questions:
  • How do sebaceous glands protect the skin normally
    5·1 answer
  • How do plants absorb light energy from the sun?
    15·2 answers
  • An organism’s particular role in its habitat, or how it makes its living, is called its a. carrying capacity. b. ecosystem. c. c
    9·1 answer
  • Hi please help!!! 15 points will give brainliest!!
    10·1 answer
  • Why protonephridia are termed as flame cells?
    6·1 answer
  • The first organisms evolved on Earth around 4 billion years ago. The fossil record indicates that the first organisms were which
    6·2 answers
  • Sickle cell anemia and albinism are both recessive traits in humans. The genes for these traits are located on different chromos
    15·1 answer
  • VOCABULARY REVIEW Define purine
    15·2 answers
  • The diagram represents the first stage of embryonic development.
    13·2 answers
  • Any GUY wanna talk, im a girl whos 17 and who loves to work on cars and play in the woods
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!