Which of the following muscles in a muscle of facial expression? 21. Unsaturated

Question

Which of the following muscles in a muscle of facial expression? 21. Unsaturated fatty acids have as much hydrogen as they can carry. True False The most abundant element in the human body, by weight is A. nitrogen B. hydrogen C. carbon D. oxygen E. calcium Sodium has an number of 11 and an atomic mass of 23. Sodium has A. 12 neutrons and 11 protons B. 12 protons and 11 neutrons. C. 12 elections and 11 neutrons. D. 12 protons and 11 electrons. E. 12 electrons and 11 protons. What type of bond attracts one water molecule to another? A. an ionic bond B. a peptide bond C. a hydrogen bond D. a covalent bond

Explanation / Answer

(21) False

Unsaturated fatty acids have less number of hydrogen atoms compared to the saturated fatty acid of same carbon numbers.

(22) C.CARBON

Carbon is the most abundant element in biological systems

(23)A.12 neutrons and 11 protons

Atomic number corresponds to the number of protons,

(24) c. Hydrogen bonds

Hydrogen bonds are the intermolecular forces of attraction in water

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