Answer:
b. reducing molecules
Explanation:
Nicotinamide adenine dinucleotide (abbreviated NAD +, and also called diphosphopyridine nucleotide and Coenzyme I), is a coenzyme found in all living cells. The compound is a dinucleotide, as it consists of two nucleotides linked through their phosphate groups with a nucleotide that contains an adenosine ring and the other that contains nicotinamide.
In metabolism, NAD + participates in redox reactions (oxidoreduction), carrying electrons from one reaction to another.
Coenzyme, therefore, is found in two forms in cells: NAD + and NADH. NAD +, which is an oxidizing agent, accepts electrons from other molecules and becomes reduced, forming NADH, which can then be used as a reducing agent to donate electrons. These electron transfer reactions are the main function of NAD +. However, it is also used in other cellular processes, especially as a substrate for enzymes that add or remove chemical groups of proteins, in post-translational modifications. Due to the importance of these functions, the enzymes involved in the metabolism of NAD + are targets for drug discovery.
Answer:
<em>The kidneys act as very efficient filters for ridding the body of waste and toxic substances, and returning vitamins, amino acids, glucose, hormones and other vital substances into the bloodstream. The kidneys receive a high blood flow and this is filtered by very specialised blood vessels.</em>
<em /><em />
Turbines. Invented by Charles Parsons. I know I'm in middle school, but we are just learning about hydroelectric power.
Answer:


Explanation:
<em>The anatomy of a child's brains can be divided into three parts:
</em>
<em>
</em>
<em>- Cerebrum;
</em>
<em>
</em>
<em>- Brainserm;
</em>
<em>
</em>
<em>- Cerebellum.
</em>
<em>
</em>
- <em>The Cerebrum has the Cerebral cortex that is responsible for functions as coordination of movement, temperature, touch, vision, hearing, speech and language, judgment, reasoning, emotions and memory.
</em>
<em>
</em>
- <em>The Brainstem includes the medulla, midbrain, and the pons, being responsible for most of the involuntary movements.
</em>
<em>
</em>
- <em>The Cerebellum coordinate vonluntary muscle movements, and the balance of the body.</em>
<u><em>The part that stores the memory for a toddler as they are learning to walk is the cerebral cortex while the cerebellum coordinate and balance their movement to improve the walk with time.</em></u>
<u><em /></u>
- <em>Hope this Helps!</em>
- <em>Have a wonderful day!</em>
<u><em /></u>
<u><em /></u>