part d. which molecule (glucose, glycogen, starch, cellulose, unsaturated fat, saturated fat, protein, phospholipid, rna, dna) is described? if there is more than one answer, write in all possibilities
51. made of glycerol and fatty acids.
52. made of carbon, hydrogen, and oxygen only.
53. contains nitrogen.
54. used to build muscles.
55. quick boost of energy.
56. stored energy.
57. required to make proteins.
58. allows materials in and out of cells.
59. makes hair, skin, and nails.
60. composed of nucleotides.

Question

Accepted Answer

### 51.
# Brief Explanations:
Lipids like unsaturated fat, saturated fat, and phospholipids (though phospholipids also have a phosphate group) are made of glycerol and fatty acids. Triglycerides (unsaturated and saturated fats) have this structure.
# Answer:
unsaturated fat, saturated fat, phospholipid

### 52.
# Brief Explanations:
Carbohydrates (glucose, glycogen, starch, cellulose) and lipids (unsaturated fat, saturated fat) are made of C, H, O only. Glucose is a monosaccharide, glycogen/starch are polysaccharides, cellulose is a polysaccharide, and fats have C, H, O.
# Answer:
glucose, glycogen, starch, cellulose, unsaturated fat, saturated fat

### 53.
# Brief Explanations:
Proteins have nitrogen (in amino groups), RNA and DNA have nitrogen in their nitrogenous bases, phospholipids have nitrogen - containing groups. So protein, RNA, DNA, phospholipid contain nitrogen.
# Answer:
protein, RNA, DNA, phospholipid

### 54.
# Brief Explanations:
Proteins are the main molecules used for building muscles. Muscle tissue is rich in protein.
# Answer:
protein

### 55.
# Brief Explanations:
Glucose is a simple sugar that provides a quick energy boost as it can be rapidly metabolized.
# Answer:
glucose

### 56.
# Brief Explanations:
Glycogen (animal storage), starch (plant storage), unsaturated fat, saturated fat are used for storing energy. Glycogen in animals, starch in plants, and fats are long - term energy stores.
# Answer:
glycogen, starch, unsaturated fat, saturated fat

### 57.
# Brief Explanations:
RNA (specifically mRNA, tRNA, rRNA) is involved in the process of protein synthesis. DNA contains the genetic code for proteins, but RNA is directly involved in translation.
# Answer:
RNA, DNA

### 58.
# Brief Explanations:
Phospholipids are a major component of cell membranes. Cell membranes regulate the passage of materials in and out of cells, and phospholipids form the lipid bilayer.
# Answer:
phospholipid

### 59.
# Brief Explanations:
Proteins are the main structural components of hair, skin, and nails (e.g., keratin is a protein).
# Answer:
protein

### 60.
# Brief Explanations:
RNA and DNA are nucleic acids, and nucleic acids are composed of nucleotides (a sugar, a phosphate, and a nitrogenous base).
# Answer:
RNA, DNA

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QUESTION IMAGE

Question

Explanation:

51.

Answer:

52.