Question

skills worksheet
vocabulary review
in the space provided, write the letter of the description that best matches the term or phrase.
c 1. ion
a 2. atom
b 3. compound
g 4. amino acids
f 5. covalent bond
h 6. ionic bond
d 7. element
e 8. solution
(descriptions: a. smallest unit of matter that cannot be broken down by chemical means; b. a substance made of the joined atoms of two or more different elements; c. atom or molecule that has lost or gained one or more electrons; d. a substance made of only one type of atom; e. one substance evenly distributed in another; f. chemical bond in which electrons are shared; g. building blocks of protein; h. attraction between oppositely charged ions)
complete each statement by writing the correct term or phrase in the space provided.

1. a(n) ______ is a substance on which an enzyme acts during a chemical reaction. (answered substrate)
2. an organic compound with a ratio of one carbon atom to two hydrogen atoms to one oxygen atom is a(n) ______. (answered carbohydrate)
3. glucose is a(n) ______ that is a major source of energy in cells. (answered carbohydrate)
4. a(n) ______ is an organic compound that is not soluble in water. (answered lipid)
5. a(n) ______ is a long chain of amino acids. (answered polypeptide)
6. subunits of dna and rna are called ______. (blank)
7. dna is a(n) ____ ____ that encodes protein sequences. (blank)

Explanation:

For the vocabulary matching part (1 - 8):

1. Ion: An ion is an atom or molecule that has lost or gained one or more electrons. So the correct description is "c. atom or molecule that has lost or gained one or more electrons".
2. Atom: An atom is the smallest unit of matter that cannot be broken down by chemical means. So the correct description is "a. smallest unit of matter that cannot be broken down by chemical means".
3. Compound: A compound is a substance made of the joined atoms of two or more different elements. So the correct description is "b. a substance made of the joined atoms of two or more different elements".
4. Amino acids: Amino acids are the building blocks of protein. So the correct description is "g. building blocks of protein".
5. Covalent bond: A covalent bond is a chemical bond in which electrons are shared. So the correct description is "f. chemical bond in which electrons are shared".
6. Ionic bond: An ionic bond is an attraction between oppositely charged ions. So the correct description is "h. attraction between oppositely charged ions".
7. Element: An element is a substance made of only one type of atom. So the correct description is "d. a substance made of only one type of atom".
8. Solution: A solution is one substance evenly distributed in another. So the correct description is "e. one substance evenly distributed in another".

For the fill - in - the - blank part (9 - 15):

1. A(n) substrate is a substance on which an enzyme acts during a chemical reaction.
2. An organic compound with a ratio of one carbon atom to two hydrogen atoms to one oxygen atom is a(n) carbohydrate.
3. Glucose is a(n) monosaccharide (or carbohydrate) that is a major source of energy in cells. (Note: Glucose is a monosaccharide, a type of carbohydrate)
4. A(n) lipid is an organic compound that is not soluble in water.
5. A(n) polypeptide is a long chain of amino acids.
6. Subunits of DNA and RNA are called nucleotides.
7. DNA is a(n) nucleic acid that encodes protein sequences. (More specifically, DNA is a double - stranded nucleic acid)

Final Answers for Matching (1 - 8):

1. c
2. a
3. b
4. g
5. f
6. h
7. d
8. e

Final Answers for Fill - in - the - Blank (9 - 15):

1. substrate
2. carbohydrate
3. monosaccharide (or carbohydrate)
4. lipid
5. polypeptide
6. nucleotides
7. nucleic acid

Answer:

For the vocabulary matching part (1 - 8):

1. Ion: An ion is an atom or molecule that has lost or gained one or more electrons. So the correct description is "c. atom or molecule that has lost or gained one or more electrons".
2. Atom: An atom is the smallest unit of matter that cannot be broken down by chemical means. So the correct description is "a. smallest unit of matter that cannot be broken down by chemical means".
3. Compound: A compound is a substance made of the joined atoms of two or more different elements. So the correct description is "b. a substance made of the joined atoms of two or more different elements".
4. Amino acids: Amino acids are the building blocks of protein. So the correct description is "g. building blocks of protein".
5. Covalent bond: A covalent bond is a chemical bond in which electrons are shared. So the correct description is "f. chemical bond in which electrons are shared".
6. Ionic bond: An ionic bond is an attraction between oppositely charged ions. So the correct description is "h. attraction between oppositely charged ions".
7. Element: An element is a substance made of only one type of atom. So the correct description is "d. a substance made of only one type of atom".
8. Solution: A solution is one substance evenly distributed in another. So the correct description is "e. one substance evenly distributed in another".

For the fill - in - the - blank part (9 - 15):

1. A(n) substrate is a substance on which an enzyme acts during a chemical reaction.
2. An organic compound with a ratio of one carbon atom to two hydrogen atoms to one oxygen atom is a(n) carbohydrate.
3. Glucose is a(n) monosaccharide (or carbohydrate) that is a major source of energy in cells. (Note: Glucose is a monosaccharide, a type of carbohydrate)
4. A(n) lipid is an organic compound that is not soluble in water.
5. A(n) polypeptide is a long chain of amino acids.
6. Subunits of DNA and RNA are called nucleotides.
7. DNA is a(n) nucleic acid that encodes protein sequences. (More specifically, DNA is a double - stranded nucleic acid)

Final Answers for Matching (1 - 8):

1. c
2. a
3. b
4. g
5. f
6. h
7. d
8. e

Final Answers for Fill - in - the - Blank (9 - 15):

1. substrate
2. carbohydrate
3. monosaccharide (or carbohydrate)
4. lipid
5. polypeptide
6. nucleotides
7. nucleic acid