What is the main difference between eukaryotic cells and prokaryotic cells?
A eukaryotic cell has a nucleus, a prokaryotic cell does not
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What is produced during cellular respiration? (3)
Energy + Carbon Dioxide + Water
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Which of the following terms best represents a disease-causing organism? A.pathogen B. antigen C. antibody D. plaque
A. Pathogen
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The number of subatomic particles in an atom of Br is: A) 80e, 80p, 35n B) 35e, 80p, 35n C) 35e, 35p, 35n D) 35e, 35p, 45n
D
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An atom of titanium has a mass number of 48 and an atomic number of 22. A second titanium atom could have the following number of subatomic particles: A) 26 p, 22 e, 22 n B) 21 p, 21 e, 26 n C) 22 p, 22 e, 24 n D) 22 p, 26 e, 22 n
B
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What is the correct number of neutrons in an atom of Cr? A) 30 B) 54 C) 24 D) 36
C
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Elements in Group 18 on the periodic table are known as the A) halogens B) alkaline earth metals C) transitional metals D) noble gases
D
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The melting point of gallium is what type of characteristic? A) elemental property B) chemical property C) physical property D) magnetic property
C
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What is the element found in the periodic table in group 4 and period 6? A) hafnium B) selenium C) gadolinium D) chromium
A
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Which element is not found in group 12 of the periodic table? A) Zn B) Hg C) Ga D) Cd
C) Ga
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A horizontal row on the periodic table is called A) a period B) a group C) a family D) a series
A
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In a periodic table, vertical columns are called: A) rows B) periods C) groups D) noble gases
C
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Group 1 on the periodic table (excluding hydrogen) is known as the A) alkali metals B) alkaline earth metals C) transitional metals D) noble gases
