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svetlana [45]
3 years ago
7

Explain the processes that take place in the stroma including the reactants going in and the product from these processes in (a)

bright sunlight and in (b) darkness. (c) What happens over an extended period of darkness of many days?
Biology
2 answers:
MakcuM [25]3 years ago
7 0
They are the light reactions and calvin cycle. The products from light reactions are ATP and NADPH
castortr0y [4]3 years ago
7 0

Answer:

In daylight calvin cycle occurs, in darkness Calvin cycle occurs along with conversion of CO2 into sugar and in extended darkness Calvin cycle stops

Explanation:

During daylight, Calvin cycle takes place within the stoma. In this process, energy obtained from sun is converted and stored into bio molecules namely ATP and NADPH.  

During darkness, Calvin cycle takes place but the energy of biomolecules i.e ATP and NADPH is used to convert carbon dioxide into sugar. Prolonged exposure to darkness causes reduction in production of energy molecules. Also, the Calvin cycle stops in extreme darkness for a long period of time.

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during what phase of a muscle twitch chemical changes such as the release of calicum are according intracelluary as rthe muscles
SOVA2 [1]

<u>During </u><u>latent </u><u>phase of a muscle twitch chemical changes such as the release of calicum are according intracelluary as rthe muscles prepare for contractrion.</u>

What are the phases of a twitch contraction?

  • A single contraction is called a twitch. A muscle twitch has a latent period, a contraction phase, and a relaxation phase.
  • A graded muscle response allows variation in muscle tension.

What is a latent period ?

The amount of time that passes between an action potential being generated in a muscle cell and the beginning of muscular contraction.

What is a muscle twitch?

  • The fundamental reaction of a motor unit to a single stimulus is a muscle twitch. Muscle Twitch in three different states .
  • Excitation of the muscle fiber takes place during the latent phase, and calcium ions are released from the sarcoplasmic reticulum into the cell's cytoplasm.

What happens during latent period of muscle twitch?

  • A single muscle twitch consists of three parts. the contraction phase, the relaxation phase, and the latent period, often known as the lag phase.
  • The action potential reaches the muscle, and the latent period is the brief (1-2 msec) interval before tension is seen in the muscle.

Learn more about latent period

brainly.com/question/10696517

#SPJ4

5 0
2 years ago
Identify the correct order of events that allow nutrients from foods to be used by the body. Group of answer choices digestion,
Lera25 [3.4K]

Answer:

The correct answer is- digestion, absorption, transport, elimination

Explanation:

The process of digestion starts from the mouth with the help of enzymes called salivary amylase present in our saliva. The food then passes through the esophagus to the stomach.  

In the stomach, the food is broken down in small fragments by churning movement which mixes digestive enzymes and food to form chyme.  

This chyme is passed to the small intestine where several enzymes from the liver and pancreas digest the food in smaller particles and absorb these particles in the blood. Therefore absorption takes place in the small intestine.

Then the solid waste material left behind after absorption is transported from small intestine to the large intestine and from large intestine waste is eliminated out of the body.

Therefore the correct order are: digestion → absorption→ transport→ elimination.

7 0
4 years ago
Which body systems interact to regulate blood pressure?​
Paha777 [63]

Answer:

In addition to the local control of blood flow, global control of blood flow including changes in cardiac output and control of arterial BP is mediated by the autonomic nervous system. Global neural control of arterial hypertension is essentially through the sympathetic nervous system (SNS).

Explanation:

From Google

4 0
3 years ago
Which of the following is NOT a function of the muscular system?
Simora [160]

Answer:

d: store minerals, like calcium

Explanation:

i'm really sorry if i'm wrong,but if it is correct then i'm glad i could help :)

4 0
3 years ago
Water pollution is bad because
Vesnalui [34]

Answer:

d harming living things.

3 0
3 years ago
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