Is the question multiple choice?
The correct answer is C. Fermentation makes NAD+ needed to keep glycolysis going. The other options are inaccruate since:
for A: there are types of fermentation that does not produce carbon dioxide like Lactic acid fermentation
for B: many types of fermentation only occurs in the absence of oxygen (anaerobic process)
for B: respiration produces around 36 ATP while fermentation only generates around 2 ATP
Molecules called steroids, which include cholesterol, are membrane components that aid in membrane fluidity.
<h3>What is
steroids?</h3>
A steroid is an organic molecule with four rings arranged in a specific chemical structure that has physiological activity. The two primary biological functions of steroids are as signaling molecules and important cell membrane components that influence membrane fluidity. Animals, plants, and fungus all contain a variety of steroid species. All steroid molecules are made in cells using either lanosterol (opisthokonts) or cycloartenol (plants). Lanosterol and cycloartenol are created via the cyclization of the triterpene squalene.
The majority of the seventeen carbon atoms that make up the steroid core structure are arranged in three six-member cyclohexane rings (rings A, B, and C in the first picture) and one five-member cyclopentane ring (the D ring). The degree to which these functional groups are entangled with this four-ring core.
To learn more about steroids from the given link:
brainly.com/question/1426358
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I believe its A because a bonds with t g bonds with c and c bonds with g, translated to rna it's UCG.
