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Karo-lina-s [1.5K]
3 years ago
12

What is the oxidizing agent in the following reaction?

Biology
1 answer:
Andru [333]3 years ago
3 0

Answer:

The answer is d. pyruvate

Explanation:

An oxidizing agent is the substance that gains electrons in a chemical reaction. At the end of the reaction it is reduced and its oxidation state increased.

A reducing agent is the substance that loses electrons in a chemical reaction. At the end of the reaction it is oxidized and its oxidation state decreased.

Pyruvate gains one electron, it is reduced from pyruvate to lactate; thus, pyruvate is the oxidizing agent.

NADH loses one electron, it is oxidized from NADH to NAD; thus, NADH is the reducing agent

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Match the digestive organ on the left with its function.
RUDIKE [14]

Answer:

pancreas: secretes digestive enzymes into the small intestine

esophagus: the place where peristalsis takes place

small intestine: area of the digestive tract where most nuturients are absorbed

stomach: area of the digestive tract that follows the esophagus

large intestine: area of the digestive tract where mostly water is absorbed

Explanation:

peristalsis: so the food can move down towards your stomach, independently of gravity

pancreas: helps your stomach become the ultimate weapon to destroy anything that gets in there with its enzymes

small intestine: it is really really long -> more time to absorb nutrients

large intestine: like a farm of bacteria, the most exotic things that somehow made it through all the way here are finally destroyed -> also, water absorbtion: your body wants to retain as much as possible, this is how and where stool formation takes place

6 0
2 years ago
Which best describes Darwin's studies that led to the theory of evolution?
ddd [48]

Answer:

The answer is B, extensive research of an individual organism over many years.

Explanation:

The question is asking, what best describes Darwin's studies that led to the theory of evolution, it would be a lot of research over a long period of time. Think, if you were to do a school project, would you get your best results over a short or long period of time with little or a lot of evidence/research? So, B is the best answer, I believe.

(PLEASE BRAINLIEST)

8 0
3 years ago
Select ALL the correct answers.
bekas [8.4K]

i chose 2 4 and 5 on my test. let me know if im any help

6 0
3 years ago
Read 2 more answers
ANSWER FOR BRAINLEST<br><br> What layer is the oldest?
Phoenix [80]

Answer:

B is oldest because it is at the bottom which entails that it is the oldest.

Explanation:

7 0
3 years ago
What is the term used to describe the twisted ladder shape of a DNA molecule
Nastasia [14]

Answer: double helix

Explanation: The double helix of DNA is, like its name implies, in the shape of a helix which is essentially a three dimensional spiral. The double comes from the fact that the helix is made of two long strands of DNA that are intertwined—sort of like a twisted ladder.

3 0
3 years ago
Read 2 more answers
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