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jonny [76]
3 years ago
12

What type of energy is required to start a reaction

Biology
2 answers:
lianna [129]3 years ago
7 0
Answer:

Activation energy.
Here’s why:


All chemical reactions, even exothermic reactions, need a certain amount of energy to get started. This energy is called activation energy. For example, activation energy is needed to start a car. Turning the key causes a spark that activates the burning of gasoline in the engine.
Leto [7]3 years ago
6 0

Answer:    Activation energy is the energy required to start a chemical reaction. Some reactions proceed immediately when the reactants are brought together, but for many others, placing the reactants in close proximity is not enough.

Explanation:

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Physical barriers that help prevent an individual from contracting diseases include __________. a. white blood cells, enzymes, t
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Sweat, tears, skin, and mucous membranes are among the physical defenses that keep a person from being sick.

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Coming into contact with a person or an animal who has the virus is one of the most straightforward ways to obtain the most contagious or infectious diseases. Direct contact, such as person-to-person contact, can transfer contagious diseases. Direct transmission of bacteria, viruses, or other germs from one person to another is the primary method by which contagious diseases are typically disseminated. If someone who is unaffected touches, kisses, coughs, sneezes, or has the virus or bacterium on them, this could happen. Additionally, these pathogens can disperse through sexual contact and the exchange of bodily fluids. The person who spreads the infection may only be a carrier and not exhibit any signs of the illness.

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4 0
2 years ago
You could distinguish a granum from an inner mitochondrial membrane because the granum, but not the inner mitochondrial membrane
goblinko [34]

Answer:

Answer ...... would have photosynthetic pigments.

Explanation:

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3 0
3 years ago
If the dna of a certain organism has guanine as 30% of its bases, then what percentage of its bases are adenine?
serious [3.7K]
G always pairs with C...So, if there is 30% G, then there's 30% C...which is 60%...that leaves 40% A+T - and you have to split this up too - so 20% Thymine (T) and 20% Adenine (A).
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3 years ago
In what part of the cell cycle does chromatin condense and form sister chromatids?​
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prophase cells, ( ^_^ ) /

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The products of aerobic respiration is Carbon Dioxide and Water. The Water leaves the body as sweat or waste such as urine. The Carbon Dioxide is carried through the blood to our lungs where we can breathe it out. Where as in anaerobic respiration, the product is Lactic Acid. This ends up being broken by oxygen after exercise (oxygen debt) and is also turned into Carbon Dioxide and Water.  
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