BIOLOGY 1010 EXAM 1 (Latest Update 2026
/ 2027) Questions with Correct Answers
{Grade A] 100% Verified
Three types of chemical bonds: - correct answer 1. Ionic Bond 2. Covalent Bond 3.
Hydrogen Bond
Ionic bond - correct answer A chemical bond in which one atom loses an electron to
form a positive ion and the other atom gains to electron to form a negative ion. [ex]
Sodium's outside e- very active/lonely. Sodium gives chlorine the electron to become a
positively charged ion, and then chlorine becomes negative. Once one is negative and
one is positive, they join and become an ionic bond= table salt.
Positive ion - correct answer when an ion has less electrons than protons
,Covalent Bond - correct answer a bond formed when atoms share one or more pairs
of electrons. [ex] two hydrogen atoms share an electron = H2
Hydrogen Bond - correct answer Weak chemical bond formed by the attraction of
positively charged hydrogen atoms to other negatively charged atoms. Only 10% as
strong as a ionic or covalent bond. It is a Polar molecule= like a water molecule. One
side is negative and the other positive. [ex] when two hydrogen atoms from one water
molecule attach to the oxygen atom of another water molecule.
Organic Compounds - correct answer formed by carbon and hydrogen atoms;
carbohydrates (CHO)- sugars and starches. Seperated into four catagories: 1.
Monosaccharide 2. Disaccharide 3. Polysaccharide 4. Lipids
Monosaccharides - correct answer Simple sugar; can occur in two different shapes =
ring or chain. [ex] ring- fructose or glucose
, Disaccharides - correct answer Two molecules: monosaccharide + monosaccharide.
Involves dehydration synthesis= dehydrating two monosaccharides. [ex] if you take
glucose and join it with fructose, you get sucrose (cane sugar). Hydrolysis= reverses
dehydration synthesis. Adds water. [ex] add water to sucrose= glucose & fructose.
Polysaccharide - correct answer More than two molecules. [ex] glycogen (a way we
store our excess glucose) & starch. [ex] chitin- makes up the outside of some bugs.
Their "skeleton" =Exoskeleton.
Lipids - correct answer a) Fats
B) Steroids
C) Phospholipids (write down what all these do)
Fats - correct answer Lipids that store energy.
/ 2027) Questions with Correct Answers
{Grade A] 100% Verified
Three types of chemical bonds: - correct answer 1. Ionic Bond 2. Covalent Bond 3.
Hydrogen Bond
Ionic bond - correct answer A chemical bond in which one atom loses an electron to
form a positive ion and the other atom gains to electron to form a negative ion. [ex]
Sodium's outside e- very active/lonely. Sodium gives chlorine the electron to become a
positively charged ion, and then chlorine becomes negative. Once one is negative and
one is positive, they join and become an ionic bond= table salt.
Positive ion - correct answer when an ion has less electrons than protons
,Covalent Bond - correct answer a bond formed when atoms share one or more pairs
of electrons. [ex] two hydrogen atoms share an electron = H2
Hydrogen Bond - correct answer Weak chemical bond formed by the attraction of
positively charged hydrogen atoms to other negatively charged atoms. Only 10% as
strong as a ionic or covalent bond. It is a Polar molecule= like a water molecule. One
side is negative and the other positive. [ex] when two hydrogen atoms from one water
molecule attach to the oxygen atom of another water molecule.
Organic Compounds - correct answer formed by carbon and hydrogen atoms;
carbohydrates (CHO)- sugars and starches. Seperated into four catagories: 1.
Monosaccharide 2. Disaccharide 3. Polysaccharide 4. Lipids
Monosaccharides - correct answer Simple sugar; can occur in two different shapes =
ring or chain. [ex] ring- fructose or glucose
, Disaccharides - correct answer Two molecules: monosaccharide + monosaccharide.
Involves dehydration synthesis= dehydrating two monosaccharides. [ex] if you take
glucose and join it with fructose, you get sucrose (cane sugar). Hydrolysis= reverses
dehydration synthesis. Adds water. [ex] add water to sucrose= glucose & fructose.
Polysaccharide - correct answer More than two molecules. [ex] glycogen (a way we
store our excess glucose) & starch. [ex] chitin- makes up the outside of some bugs.
Their "skeleton" =Exoskeleton.
Lipids - correct answer a) Fats
B) Steroids
C) Phospholipids (write down what all these do)
Fats - correct answer Lipids that store energy.
