BIOL 201 Chapter Notes -Sister Chromatids, Homologous Chromosome, Lipid Bilayer
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Fill in the following chart with the appropriate subatomic particle and state whether each is located in the nucleus of the orbital
Particle | Charge | Location (Nucleus or Orbital) |
Positive (+) | ||
Negative (-) | ||
Neutral Charge |
Fill in the following chart using the lowercase letter of the statements below. Please be aware that some letters should be used more than once because they are true for more than one type of bond.
Covalent Bonds | Ionic Bonds | Hydrogen Bonds |
Electrons are transferred from one atom to another atom
Valance electrons are shared between atoms
Involves positive and negative ions
A weak bond between 2 or more polar molecules
A bond between 2 or more atoms
The type of bond used to make NaCl (table salt)
The type of bond used to make CH4 (Methane)
What does it mean when a molecule is described as âpolar?â Be detailed in your answer.
State and explain two reasons that water molecules are essential to life because of their hydrogen bonds.
Fill in the chart with the missing information about macromolecules
Macromolecule | Dietary source | Function | Example | Defining Characteristics |
Carbohydrate | Cellulose and glucose | |||
Lipid | Fats, Oils | |||
Protein | ||||
Nucleic Acid | Sardines, beans, spinach | Made of nucleotides (contain a base, sugar and phosphate) |
1.
__________ are fairly small organelles that provide a safe place within the cell to carry out certain biochemical reactions that generate harmful, highly reactive oxygen species. These chemicals are both generated and broken down in the same location.
Lysosomes |
Endosomes |
Peroxisomes |
Nucleosomes 2. Biologists cannot possibly study all living species. Instead, they try to understand cell behavior by studying a select subset of them. Which of the following characteristics are useful in an organism chosen for use as a model in laboratory studies?
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