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4 years ago

What is the term referring to the synergistic action of muscle groups to produce movement around a joint?

1 answer:

5 0

The answer is the force –couple, this is a group of muscles that moves around the joint and this move to produce movement. A couple involves of two parallel forces that are equal in magnitude, opposite in sense and do not share a line of action. This is a pure moment and single force acting at a single point.

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Describe the experiment, to show that light intensity, water, chlorophyll, and cabondioxide are needed for photosynthesis

lisov135 [29]

Answer:

Is light needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in an opaque box and 1 part in a transparent box (one with light and one without)

3. Test for starch (BEWI)

B. Is carbon dioxide needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in a box with CO2 absorber and 1 part in box with a CO2 provider

3. Test for starch (BEWI)

C. Is chlorophyll needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. Use a variegated leaf

3. Test for starch (BEWI)

B E W I

1. Put leaf in boiling water to destroy the cell membrane and denature enzymes

2. Ethanol in a hot water bath to remove chlorophyll

3. Warm water to soften the leaf

4. Add drops of iodine solution

Explanation:

3 0

3 years ago

The synthesis of the enzyme lipase would be classified as anabolic because A) the resulting enzyme can catalyze the breakdown of

puteri [66]

Answer:

B) energy is captured in the bonds linking amino acids that compose lipase.

Explanation:

Anabolic reactions are chemically defined as synthesis reactions in opposition to Catabolic reactions, in which a degradation of chemical compounds occurs. Thus, in anabolic transformations simpler reagents are used to produce more complex substances. In the particular case of the synthesis of a lipase, a number of amino acids are chemically bonded to form a polymerized structure, clearly chemically more complex, known as polypeptide.

An increase in chemical complexity always requires an investment of energy, considering that building a larger molecule implies bonding more reagents or precursor into the final product. Thus, the increase in the energy content of the product (in this case the lipase) when comparing to each precursor (individuals amino acids) will be reflected in the linking (covalent) bonds between amino acids. Of course, there is always a certain amount of energy that is lost as heat during any chemical transformation (not all the energy invested in the synthesis will be captured in the product).

The overall of all anabolic reaction which take place inside the cell is called anabolism, while the whole set degradation chemical reaction occurring within the cell is known as catabolism. Being said that, it is clear that anabolism and catabolism, when being considered jointly, conform the metabolism as a whole and coordinated cellular process.

4 0

3 years ago

As a person exercises, the carbon dioxide level in the blood increases. Which of the following systems are signaled by the nervo

dedylja [7]

Circulatory and excretory system

6 0

3 years ago

Read 2 more answers

Describe how the weakened virus is structurally different from the<br>normal virus.

kiruha [24]

Answer:

Explanation:

The weakened virus's structure would be less complex to the normal virus, thus the normal virus would be able to adapt if there are dangerous changes to them.

8 0

3 years ago

Explain why organization is important to the study of ecology

sdas [7]

Levels of organization helps us (people) to classify the different types of interactions that occur in the environment.

Explanation:

There are six different levels of organization important to the study of ecology - they are: species, population, community, ecosystem, biome and biosphere.

By understanding these relationships we can make informed decisions about policy regarding how to manage our wildlife resources.

For example, Isle Royale is an island located in Lake Superior close to Minnesota which was turned into a national park in the 1930's. The island has a population of moose and wolves. The populations of wolves have dropped to only 3 in 2015 and the number of moose have increased greatly.

By understanding the biology of the moose (species/population level), their predator-prey interaction with wolves (community level) and biotic/abiotic factors (ecosystem level) the park service can make better decisions about how to best manage wildlife populations if the wolves on the island die out.

7 0

3 years ago