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18 Questions

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Biology: Chemical Basis of Life

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Questions and Answers

Which type of fatty acids contain the maximum number of hydrogen atoms per carbon atom?

Unsaturated fatty acids

Deoxyribonucleic acids

Saturated fatty acids (correct)

Nucleic acids

What is the main difference between saturated and unsaturated fatty acids?

Their state at room temperature

The number of hydrogen atoms per carbon atom (correct)

Their chemical formula

The number of carbon atoms they contain

What are the two main types of nucleic acids?

DNA and RNA (correct)

RNA and lipids

DNA and proteins

Proteins and carbohydrates

Which element is NOT present in nucleic acids?

Calcium Signup and view all the answers

What is the function of RNA in living organisms?

Synthesizes proteins Signup and view all the answers

Which structural unit makes up the nucleic acid RNA?

Ribonucleotide Signup and view all the answers

Which of the following foods contain carbohydrates?

Potato, Grains, Sugar Signup and view all the answers

What is the main elemental composition of carbohydrates?

Carbon, Hydrogen, Oxygen Signup and view all the answers

What type of molecules join to form a disaccharide?

Two monosaccharides Signup and view all the answers

Which of the following is not an example of a disaccharide?

Fructose Signup and view all the answers

Where are disaccharides typically found?

As sweet, water-soluble crystals Signup and view all the answers

What is released when two monosaccharides join to form a disaccharide?

Water Signup and view all the answers

Which elements are the most common in living organisms?

Carbon, Hydrogen, Oxygen & Nitrogen Signup and view all the answers

What is the main difference between organic and inorganic compounds?

Organic compounds contain carbon while inorganic compounds do not. Signup and view all the answers

Which of the following is NOT a biological molecule?

Water Signup and view all the answers

What are some examples of inorganic molecules essential for the maintenance of life?

Water, minerals, and gases Signup and view all the answers

Which of the following elements is essential for the survival of organisms according to the text?

Phosphorous Signup and view all the answers

How are organic compounds defined?

Compounds that build up living matter Signup and view all the answers