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RoseWind [281]
3 years ago
11

The light-independent reactions of photosynthesis need

Biology
1 answer:
Advocard [28]3 years ago
3 0

Light-independent  reactions are the second stage of photosynthesis. They make sugars. Light-independent takes place in the stroma and doesn't require light. They need carbon dioxide (CO2) from the atmosphere to build the sugars. These sugars are used to build starches and cellulose in a cycle of chemical reactions.

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In the water cycle, the process of occurs between the processes of evaporation and precipitation.​
Katarina [22]

Answer:

Condensation

Explanation:

Condensation must occur to have precipitation, and requires evaporation ot occur

6 0
3 years ago
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

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5 0
2 years ago
Which process occurs during the light-dependent reactions in photosynthesis?
kobusy [5.1K]

Answer:

A. Water molecules are split.

Explanation:

The light dependent reactions of photosynthesis require the energy in sunlight to proceed. Structures called photosystems which contain chlorophyll absorb the light from the sun to generate excited electrons, which are transferred to electron carriers ATP and NADH.

These electron carriers are used in the light-independent reactions of photosynthesis.

During this process,  the high energy electrons are passed to an acceptor molecule and replaced with an electron from water. This splitting of water produces H+ ions and oxygen as a byproduct. The splitting of water is called photolysis

3 0
3 years ago
A biologist treats a cell with a certain chemical that inhibit the cell ability to synthesise DNA
Tomtit [17]

If the cell treated with a chemical that inhibits DNA synthesis is treated to undergo the process of the cell cycle, the phase that will be affected is the S-phase of interphase.

<h3>What is interphase?</h3>

The interphase stage of cell division is the resting stage between two successive divisions.

The interphase is further grouped into three phases namely:

  • G1 phase
  • S-phase or synthesis phase
  • G2 phase

The synthesis phase of interphase is the stage where new DNA strand is synthesized, hence, if the cell treated with a chemical that inhibits DNA synthesis is treated to undergo the process of the cell cycle, the phase that will be affected is the S-phase of interphase.

Learn more about interphase at: brainly.com/question/17485110

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8 0
2 years ago
Which of the following correctly sorts the organizational levels of a ecosystem form least inclusive to most inclusive
Naddika [18.5K]

Answer:

population - community - ecosystem - biosphere

Explanation:

<em>The correctly sorted level of organization of an ecosystem from the least inclusive to the most inclusive would be from population to community to ecosystem and finally to biosphere.</em>

A population consists of a group of organism of the same species living in a particular area at a particular time and capable of interbreeding to produce fertile progeny.

A community represents different population of organisms that are interacting with one another. Several populations make up a community.

An ecosystem consists of different communities of organisms that are interacting with themselves and the non living component of the environment.

A biosphere consists of all regions of the earth where living organisms can be found. It consists of different ecosystems that make up the earth.

<u>Hence, the population is least inclusive, followed by the community, then the ecosystem and finally the biosphere.</u>

8 0
3 years ago
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