In Any Ecosystem, Terrestrial Or Aquatic, What Group(S) Is (Are) Always Necessary?

What groups are necessary in an ecosystem?

The living organisms in an ecosystem can be divided into three categories: producers consumers and decomposers. They are all important parts of an ecosystem. Producers are the green plants. They make their own food.

Which of the following is a location where the molecules of the electron transport chain are found in plant cells?


Therefore the direct answer to your question is the chloroplast (2 electron transport photophosphorylation chains) and the mitochondrion (electron transport phosphorylation).

What are the molecules of the electron transport chain found in plant cells?

The Electron Transport Chain

Most of this ATP is produced by a series of proteins on the inner membrane of the mitochondria – these proteins collect electrons from NADH and FADH2 and pass the electrons down the protein chain ( hence “electron transport chain or ETC” ).

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Where are the molecules of the electron transport chain found in plant cells when undergoing photosynthesis only?

Where are the molecules of the electron transport chain found in plant cells? In thylakoids protons travel through ATP synthase from the thylakoid space to the stroma.

What is needed in an ecosystem?

An ecosystem must contain producers consumers decomposers and dead and inorganic matter. All ecosystems require energy from an external source – this is usually the sun. An ecosystem must contain producers consumers decomposers and dead and inorganic matter.

What is the meaning of terrestrial ecosystem?

A terrestrial ecosystem is a land-based community of organisms and the interactions of biotic and abiotic components in a given area. Examples of terrestrial ecosystems include the tundra taigas temperate deciduous forests tropical rainforests grasslands and deserts.

Where are the molecules of the electron transport chain found quizlet?

The electron transport chain takes place within the inner membrane of the mitochondria. Recall that mitochondria have two membranes—an inner membrane and an outer membrane. The folds of the inner membrane or cristae create a very large surface area. The electron transport chain takes place in the cristae.

Which of the following is are a product S of the light reactions of photosynthesis?

The light dependent reactions produce ATP and NADPH which are then used by the light independent reactions.

Where are the molecules of the electron transport chain found in chloroplast?

thylakoid membrane

In plants the so-called “light” reactions occur within the chloroplast thylakoids where the aforementioned chlorophyll pigments reside. When light energy reaches the pigment molecules it energizes the electrons within them and these electrons are shunted to an electron transport chain in the thylakoid membrane.

Where is the electron transport chain found in plants?

In photosynthetic eukaryotes the electron transport chain is found on the thylakoid membrane. Here light energy drives the reduction of components of the electron transport chain and therefore causes subsequent synthesis of ATP.

Which of the following molecules is a product of photosynthesis?

The products of photosynthesis are glucose and oxygen.

Where is chlorophyll found in a plant cell quizlet?

Photosynthesis takes place inside plant cells in small things called chloroplasts. Chloroplasts (mostly found in the mesophyll layer) contain a green substance called chlorophyll.

How do electrons move in the electron transport chain?

Electrons move through the electron transport chain from a higher to lower energy state. Energy release moves protons through channels in the membrane proteins moving them into the inner membrane space. This leads to a buildup of positively charged protons which creates an electrical potential across the membrane.

What molecule is used as an electron carrier during photosynthesis?


Nicotinamide adenine dinucleotide phosphate an energy carrier molecule produced in the light reactions of photosynthesis. NADPH is the reduced form of the electron acceptor NADP+.

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How does the electron transport chain work in photosynthesis?

Chlorophyll which is present in the photosystems soaks up light energy. The energized electrons are then used to make NADPH. The electron transport chain is a series of molecules that accept or donate electrons easily. … ATP is created when hydrogen ions are pumped into the inner space (lumen) of the thylakoid.

How are aquatic ecosystems and terrestrial ecosystems different?

Terrestrial ecosystems are ecosystems found only in land these include tropical rainforests deserts grasslands deciduous forests tundra and taiga. Aquatic ecosystems are ecosystems found in bodies of water these include lakes rivers ponds wetlands oceans and seas.

Why do we need ecosystem?

Healthy ecosystems clean our water purify our air maintain our soil regulate the climate recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes. … It’s that simple: we could not live without these “ecosystem services”.

Why all members of an ecosystem are important?

It provides habitat to wild plants and animals. It promotes various food chains and food webs. It controls essential ecological processes and promotes lives. Involved in the recycling of nutrients between biotic and abiotic components.

What do you mean by aquatic ecosystem?

An aquatic ecosystem is an ecosystem in and surrounding a body of water. … Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems.

What is aquatic ecosystem examples?

Examples of aquatic ecosystem include oceans lakes and rivers. An aquatic ecosystem includes freshwater habitats like lakes ponds rivers oceans and streams wetlands swamp etc. and marine habitats include oceans intertidal zone reefs seabed and so on.

Is the pond a terrestrial or aquatic ecosystem?

Lakes and ponds (also known as lentic systems) are a diverse set of inland freshwater habitats that exist across the globe and provide essential resources and habitats for both terrestrial and aquatic organisms.

What occurs in the electron transport chain?

The electron transport chain is a series of four protein complexes that couple redox reactions creating an electrochemical gradient that leads to the creation of ATP in a complete system named oxidative phosphorylation. It occurs in mitochondria in both cellular respiration and photosynthesis.

What is an electron transport chain quizlet?

Electron Transport Chain. A sequence of electron carrier molecules (membrane proteins) that shuttle electrons during the redox reactions that release energy used to make ATP.

What is produced during the electron transport chain?

The end products of the electron transport chain are water and ATP. A number of intermediate compounds of the citric acid cycle can be diverted into the anabolism of other biochemical molecules such as nonessential amino acids sugars and lipids.

Which of the following are product of light reaction?

ATP and NADPH are produced during the light dependent reaction and are reactants necessary for the light independent reaction (Calvin Cycle) to occur. During the light independent reaction ATP and NADPH are used to convert phosphoglycerate molecules (PGA) to glyceraldehyde-3-phosphate molecules (G3P).

What are the product of light reaction?

The products of light reaction are ATP NADPH and oxygen of which oxygen is released into the atmosphere NADPH acts as reducing agent and ATP is consumed during the carbon dioxide fixation in dark reaction.

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What are the 3 products of light dependent reactions?

Glucose ATP and O2

What is the source of electrons for the chloroplast electron transport chain?

What is the initial source of electrons for the chloroplast electron transport chain? Water is the initial source. The reaction center contains a pair of chlorophyll a molecules with a special property.

What does cyclic electron flow in the chloroplast produce?

A second electron transport pathway called cyclic electron flow produces ATP without the synthesis of NADPH thereby supplying additional ATP for other metabolic processes. In cyclic electron flow light energy harvested at photosystem I is used for ATP synthesis rather than NADPH synthesis (Figure 10.23).

How do reactant molecules of photosynthesis reach the chloroplasts in leaves?

The reactant molecules which are water $C{O_2}$ and light reach the chloroplast in different ways: the water reaches the leaves by the help of Xylem the xylem in found vascular bundles which consist of Xylem and phloem the carbon dioxide reaches the chloroplast through tiny openings present on the epidermis of …

What is electron transport in photosynthesis?

Photosynthetic electron transport is the first stage of photosynthesis that produces chemically stored energy and uses solar photons to drive electron transport against a thermodynamic gradient.

What are the 4 steps of the electron transport chain?

The key steps of this process shown in simplified form in the diagram above include:
  • Delivery of electrons by NADH and FADH 2​start subscript 2 end subscript. …
  • Electron transfer and proton pumping. …
  • Splitting of oxygen to form water. …
  • Gradient-driven synthesis of ATP.

Does electron transport chain require oxygen?

Explanation: Oxygen is the final electron acceptor in the electron transport chain which allows for oxidative phosphorylation. Without oxygen the electrons will be backed up eventually causing the electron transport chain to halt.

Which of the following molecules are products of photosynthesis group of answer choices?

The reactants for photosynthesis are light energy water carbon dioxide and chlorophyll while the products are glucose (sugar) oxygen and water.

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