1) What is the smallest unit of matter that cannot be broken down by chemical means? a) compound b) atom c) molecule d) cell 2) Two or more atoms that combine with one another chemically. a) cell b) molecule c) element d) compound 3) A pure substance that is not made up of other simpler substances. a) compound b) cell c) element d) molecule 4) Glycerol and fatty acids join together by... a) ester bond b) glycosidic bond c) peptide bond d) phosphodiester bond 5) Amino acids join together by... a) hydrogen bond b) ester bond c) peptide bond d) glycosidic bond 6) Proteins are made up of... a) monosaccharides b) nucleotides c) amino acids d) nucleic acids 7) The twisted ladder shape of DNA is called a:  a) hydrogen twist b) double helix c) double membrane d) deoxyribose flip 8) Vitamins and minerals are safe no matter how much you take a) true b) false 9) Vitamin C can ward off a cold a) true b) false 10) Which of the following foods rich in Glucose? a) Leafy vegetables and fibrous fruits b) Mature fruits and honey c) Fig and grape fruits d) Sugar cane and sugar beet 11) Which of the following structures are rich in cellulose? a) Potato b) Cotton c) Meat d) Wood

LIfe Sciences 1

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