The citric acid cycle role is

Biology

1 answer:

Sunny_sXe [5.5K]3 years ago

3 0

Answer:

The citric acid cycle is the final common oxidative pathway for carbohydrates, fats and amino acids. It is the most important metabolic pathway for the energy supply to the body.

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Are the beginning link in a food chain while are at the end of the chain

valkas [14]

Answer:

Producers are the beginning link in a food chain, while decomposers are at the end of the chain.

Explanation:

The food chain, in simple terms, is a sequence in which nutrients and energy are passing from one organism to another through 'predation'.

Producers are the organisms that produce their own food, they are also known as autotrophs. An example of this group of organisms is plants.

Then, producers are eaten by primary consumers, e.g. herbivores. Then, these organisms will be eaten by secondary consumers, which are carnivores. These (usually small) carnivores will be consumed by terciary consumers, which could be larger but are not yet considered apex predators, for example an eagle. Then, quaternary consumers, or apex predators, will eat these carnivores.

We could say this is the end of the food chain. However, this is not the case. Decomposers are organisms that feed on decaying matter and break down dead organic material. Examples are some species of bacteria, fungi, worms.

It is important to highlight that some researchers locate these organisms in a separate 'individual' trophic level because they can consume residues of plants or residues of predators. However, generally, they are considered the end of the chain or the 'cleaners' of the chain.

6 0

4 years ago

QUESTION 6

Orlov [11]

Not all. This fungus is a lichen, providing nutrients to the tree. The lichen gets sugars from the plant. Both benefit from this relationship.

Symbiotic Relationships of Fungi

Not all fungi feed on dead organisms. Many are involved in symbiotic relationships, including parasitism and mutualism.

Fungi as Parasites

In a parasitic relationship, the parasite benefits while the host is harmed. Parasitic fungi live in or on other organisms and get their nutrients from them. Fungi have special structures for penetrating a host. They also produce enzymes that break down the host’s tissues.

Parasitic fungi often cause illness and may eventually kill their host. They are the major cause of disease in agricultural plants. Fungi also parasitize animals, such as the insect pictured in Figure below. Fungi even parasitize humans. Did you ever have athelete’s foot? If so, you were the host of a parasitic fungus.

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$$shaun$$

7 0

3 years ago

A 100 kg box is initially at rest on a level surface. One 10 N force acts on the box , directed toward the right. A second 10 N

Paladinen [302]

Answer:

The box will not move because balanced forces are acting on it.

Explanation:

According to Newton's first law of motion, an object will remain in its state of rest or motion along a straight line unless acted upon by an unbalanced force.

An unbalanced force is an individual force acting on any side of an object which is not balanced by a force of equal magnitude acting in the opposite direction.

From the image, two forces of equal magnitude of 10 N are pulling the 100 kg box in opposite directions. Since the two forces, 10 N each are pulling the object in opposite directions, they are balanced forces. Therefore, the box will not move because balanced forces are acting on it.