Answer:
D
Explanation:
An infection is when something invades your body, therefore, you are infected with micro-organisms making it D.
Sunscreens contain chemical ingredients in their compositions, such as avobenzone, oxybenzone, octocrylene, homosalate, octisalate and octinoxate, which have been linked to health problems such as hormonal disruptions, cancer, as well as liver and kidney changes.
<h3>What is oxybenzone, octocrylene, and homosalate bad for?</h3>
Oxybenzone, octocrylene, and homosalateto protect from UVA also penetrates deep into the skin. The penetration into the human body can cause several problems in human health such as
- allergic reactions
- cell mutation
- deregulation of hormonal processes,
- etc.
With this information, we can conclude that Oxybenzone, octocrylene, and homosalateto is considered a hazardous eye irritant and, as an allergen, is also known to cause skin allergies.
Learn more about Sunscreens in brainly.com/question/20448560
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The history of life on Earth began about 3.8 billion years agohumans have been around for a mere 0.004% of the Earth's history
Answer:
Citrate Synthase facilitates the formation of citrate by deprotonating Acetyl CoA and by protonating the carbonyl oxygen of oxaloacetate
Explanation:
Citrate synthase is a key enzyme in the citric acid cycle that functions to catalyze the formation of citrate from oxaloacetate and acetyl-CoA: acetyl-CoA + oxaloacetate + H2O >> citrate + CoA-SH (Coenzyme A ). This enzyme contains three amino acids at its active site that work together to catalyze the conversion of acetyl-CoA and oxaloacetate into citrate. This active site acts by abstracting (deprotonating) a proton from the alpha carbon of Acetyl CoA which serves as the nucleophile. Subsequently, the active site of the enzyme also protonates the carbonyl oxygen of oxaloacetate, which then suffers nucleophilic attack and thereby facilitating nucleophilic substitution reaction.
