BIO 1201 GREGG EXAM 1 2026 CELL
STRUCTURE AND FUNCTION PRACTICE SET
ANSWERS FULL SOLUTION
◉ central vacuole.
Answer: prominent organelle in older plant cells; storage,
breakdown of waste products, hydrolysis of macromolecules;
enlargement of vacuole major mechanism of plant growth.
◉ Part complete
The innermost electron shell of an atom can hold up to _____
electrons..
Answer: 2
◉ Which of these relationships is true of an uncharged atom?.
Answer: The number of protons is equal to the number of electrons
◉ What determines the types of chemical reactions that an atom
participates in?.
Answer: the number of electrons in the outermost electron shell
◉ What type of bond is joining the two hydrogen atoms?.
,Answer: covalent
◉ A(n) _____ refers to two or more atoms held together by covalent
bonds..
Answer: molecule
◉ This atom can form up to _____ single covalent bond(s).
Answer: 4
◉ A(n) _____ bond joins these two oxygen atoms..
Answer: double covalent
◉ Part complete
What is the atomic number of an atom that has 6 protons, 6
neutrons, and 6 electrons?.
Answer: 6
◉ Part complete
Which of these refers to atoms with the same atomic number but
different atomic masses?.
Answer: these atoms are isotopes
, ◉ Fluorine's atomic number is 9 and its atomic mass is 19. How
many neutrons does fluorine have?.
Answer: 10
◉ An uncharged atom of boron has an atomic number of 5 and an
atomic mass of 11. How many protons does boron have?.
Answer: 5
◉ A water molecule can bond to up to _____ other water molecules by
____ bonds..
Answer: 4 .... hydrogen
◉ Part complete
The unequal sharing of electrons within a water molecule makes the
water molecule _____..
Answer: polar
◉ The tendency of an atom to pull electrons toward itself is referred
to as its _____..
Answer: electronegativity
◉ In this molecule, what type of bond is found between the oxygen
and hydrogens?.
STRUCTURE AND FUNCTION PRACTICE SET
ANSWERS FULL SOLUTION
◉ central vacuole.
Answer: prominent organelle in older plant cells; storage,
breakdown of waste products, hydrolysis of macromolecules;
enlargement of vacuole major mechanism of plant growth.
◉ Part complete
The innermost electron shell of an atom can hold up to _____
electrons..
Answer: 2
◉ Which of these relationships is true of an uncharged atom?.
Answer: The number of protons is equal to the number of electrons
◉ What determines the types of chemical reactions that an atom
participates in?.
Answer: the number of electrons in the outermost electron shell
◉ What type of bond is joining the two hydrogen atoms?.
,Answer: covalent
◉ A(n) _____ refers to two or more atoms held together by covalent
bonds..
Answer: molecule
◉ This atom can form up to _____ single covalent bond(s).
Answer: 4
◉ A(n) _____ bond joins these two oxygen atoms..
Answer: double covalent
◉ Part complete
What is the atomic number of an atom that has 6 protons, 6
neutrons, and 6 electrons?.
Answer: 6
◉ Part complete
Which of these refers to atoms with the same atomic number but
different atomic masses?.
Answer: these atoms are isotopes
, ◉ Fluorine's atomic number is 9 and its atomic mass is 19. How
many neutrons does fluorine have?.
Answer: 10
◉ An uncharged atom of boron has an atomic number of 5 and an
atomic mass of 11. How many protons does boron have?.
Answer: 5
◉ A water molecule can bond to up to _____ other water molecules by
____ bonds..
Answer: 4 .... hydrogen
◉ Part complete
The unequal sharing of electrons within a water molecule makes the
water molecule _____..
Answer: polar
◉ The tendency of an atom to pull electrons toward itself is referred
to as its _____..
Answer: electronegativity
◉ In this molecule, what type of bond is found between the oxygen
and hydrogens?.
