What is activation energy

2 answers:

6 0

Activation energy, in chemistry, is the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.

Flura [38]3 years ago

3 0

Answer:

the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction

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Do photosynthesis and cellular respiration affect the level of carbon in the geosphere?

olga nikolaevna [1]

The answer is; YES they do

Photosynthesis is important in taking carbon from the atmosphere . This is why forest are great carbon sinks because they sequester carbon from the atmosphere. Cellular respiration, on the other hand, is the opposite of photosynthesis. It increases the levels of carbon in the atmosphere by breaking down carbon-based foods to carbon dioxide.

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4 years ago

1.Identify the role of endocrine glands in growth/development, and in regulation of metabolism.

DIA [1.3K]

In this question we are going to answer a series of questions about the human endocrine system, hormone release and homeostasis.

<h3>What is human endocrine system, hormone release and homeostasis?</h3>

1. Endocrine glands produce hormones and release them directly into the bloodstream.

Hormones are the products of secretion from the endocrine glands. They control various activities in the human body, hence the importance of these glands.

2. It is through the feedback mechanism that, for example, the regulation of hormone secretion and the control of temperature and blood pressure occur.

Thanks to this control, it is possible to guarantee the harmony of the systems and, consequently, the homeostasis (balance of the internal environment).

3. Hormones can be divided into four groups, based on their chemical structure,form of synthesis and storage, solubility, half-life, form of transport, receptors on cell and mechanism of action:

Peptides
Steroids
Amines
and Eicosanoids.

Both positive and negative feedback are extremely important for our body to function properly. However, these two mechanisms have differences. In negative feedback, the body produces a response that reduces the initial stimulus, while in positive feedback, the response reinforces the stimulus.

Learn more about Hormones in brainly.com/question/13020697

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2 years ago

How is the path of a bullet determined? Question 2 options: A comparison microscope can show the direction of the bullet by clos

Sonbull [250]

The answer is a rod or laser line is inserted into the wound or bullet hole and points to the direction of the shooter.

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4 years ago

Which sentence does not describe a structural adaptation?

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Structural adaptations are the physical features of an organism, like a long trunk, thin beak, or thorns. Behavioral adaptations are things that organisms do to survive, like getting a drink when thirsty. So the correct answer is B. :)

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3 years ago

Would Adenine be classified as<br> urine or pyrimidine?<br> Purine<br> Pyrimidine

Lunna [17]

Answer:

purine

Explanation:

Purines are nitrogenous base that have two carbon-nitrogen rings. The most naturally occurring purines are adenine and guanine which are found in DNA and RNA as nucleotide building blocks of these polymers. Purines are constituents other important biomolecules, such as ATP, GTP, cyclic AMP, NADH, and coenzyme A. Purine and pyrimidine ribonucleotides built up essential intermediates in the synthesis of the polynucleotides RNA and DNA.

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3 years ago