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
SashulF [63]
3 years ago
12

C4 plants occur more commonly in desert conditions because _____. a. they can fix carbon at the lower CO2 concentrations that de

velop when the stomata are closed b. they store carbon by incorporating CO2 into organic acids that are later catabolized c. they produce water as a product of their photosynthetic pathways d. they produce carbon dioxide internally via photorespiration the stomata open at night and close in the day
Biology
2 answers:
ahrayia [7]3 years ago
6 0

Answer:

a. they can fix carbon at the lower CO2 concentrations that develop when the stomata are closed

Explanation:

C4 plants are those that have the capacity to fix CO2 even when a tiny concentration of it is available.

Desert condition is characterized by dryness and strong heat with both condition capable of creating water stress in plant as a result of evapotranspiration. In order to reduce evapotranspiration rate, desert plants (most C4 plants) close their stomata during the day.

<em>Stomata closure limit the diffusion of CO2 into desert plants and the small concentration of CO2 that results is utilized by a special enzyme in the plants.</em>

The correct option is a.

Setler79 [48]3 years ago
5 0

Answer:

They can fix carbon at the lower CO2 concentrations that develop when the stomata are closed.

Explanation:

In order to conserve   the substrate Ribulose biphosphate(RuBP)  which  must react with CO2,, and to avoid  wasteful photorespiration reaction  of RuBP  with oxygen. which are  both  catalysed by enzyme Rubisco; C4 plants formed a 4C-compounds -oxaloacatate . While keeping RuBP and enzyme Rubisco  in the bundle sheath away from oxygen.

The C02 is rather absorbed  by mesopyll cell in contact with air and  combines with 3C-Phosphoenopyruvate, a reaction catalysed by Phosphoenocarboxylase, to form 4C-oxaloacetate.

The latter is converted to 4C -Malate, which is shunted from the mesophyll into the bundle shealth where Rubisco and RuBP are concentrated.

Therefore when the stomata is closed,C4 plants can  fixed Carbon as Oxaloacetate and  Malate,  in the bundle sheath,despite the closed Stomata, because of the anatomy which separated the externally contact mesophyll cells from the airtight bundle sheath cells.

You might be interested in
Two yeast cells were placed into a special container to which food was continually added, to keep it at a constant concentration
Andrews [41]

Answer:

Answer to Two yeast cells were placed into a special container to which food was continually ... All Other Factors Were Set For Optimal Yeast Growth (for Example, ... The Population Was Sampled Every Hour For 21 Hours And The Results Of The ... to which food was continually added, to keep it at a constant concentration.

Explanation:

Answer to Two yeast cells were placed into a special container to which food was continually ... All Other Factors Were Set For Optimal Yeast Growth (for Example, ... The Population Was Sampled Every Hour For 21 Hours And The Results Of The ... to which food was continually added, to keep it at a constant concentration.

4 0
2 years ago
What is the difference between mitochondria and chloroplasts.
irina1246 [14]

Answer: Mitochondria are present in the cells of all types of aerobic organisms like plants and animals, whereas Chloroplast is present in green plants and some algae, protists like Euglena.

Explanation:

4 0
3 years ago
My stummy hurts T_T wut do i do.
wel
Answer: ONLY If your abdominal pain is serious, doesn't go away, or keeps coming back, talk to your doctor. Call 911 right away if your belly hurts because you had a recent injury there or if you have any chest pain. You should also contact your doctor as soon as you can if you have symptoms along with the pain, such as: Fever.
Explanation: IF NOT SERIOUS- Drinking water. ...
Avoiding lying down. ...
Ginger. ...
Mint. ...
Taking a warm bath or using a heating bag. ... please give me brainliest ❤️ ty
8 0
3 years ago
How do organisms affect the environment
Crank

<u>Answer:</u>

Nature consists of both the organism and the environment. The relationship between them are intertwined. Organisms are mainly divided into three

a) The producers

b) The consumers

c) Decomposers

These three organisms are interlinked with each other. Without them there is no existence of the environment. The producers produce the food, the consumers consume them and the decomposers decompose and release it in the form of energy. In each cycle energy is released and absorbed. The balance in the environment is maintained by the food pyramid.

6 0
3 years ago
What is a solid outer layer of the earth?
choli [55]

Answer:

lithosphere

Explanation:

Earth's lithosphere includes the crust and the uppermost mantle, which constitute the hard and rigid outer layer of the Earth. The lithosphere is subdivided into tectonic plates. Further there are two types of lithosphere mainly as oceanic and continental lithosphere.

4 0
2 years ago
Read 2 more answers
Other questions:
  • I will give brainliest!!! Lysosomal storage diseases (LSDs) are a group of rare and inherited genetic disorders in which some pa
    15·1 answer
  • For decades, people died from diseases we can now prevent through vaccination. Jenner is known for developing the first vaccine,
    15·1 answer
  • An organism is anything that has or once had the characteristics of life: made of cells, displays organization, grows and develo
    10·1 answer
  • True or False: Eye Color: Blue and Brown and Freckles: Freckles or no freckles are examples of human traits that have 2 variatio
    5·1 answer
  • Pls help me on this I’ve asked 3 times already , biology ppl
    14·1 answer
  • what is called when a scientist carefully examine a new result by someone else in their field of study
    9·2 answers
  • How can the movements of air and water make local pollution a global problem
    5·1 answer
  • Please help me! Major grade. Tysm!!
    14·1 answer
  • How has gene duplication played a critical role in evolution? see concept 21.5 (page)
    9·1 answer
  • Paraneoplastic syndromes in cancer involve excessive production of substances by multiple means. a common substance found in exc
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!