Biology 103 Exam #1 Questions and Answers 2024;full solution pack

Subatomic particles - Tiny entities of matter Protons, Neutrons, Electrons Atoms - Building block of all substances Molecules - Group of atoms bonded together Organelles - Any number of organized or specialized structures within a living cell Cells - Smallest living unit Tissues - Consisting of specialized cells and their products Organs - Structural/functional Self-contained Has specific functions Organ systems - Group of organs with functions Example: digestive system Multicellular organisms - Organisms that consist of more than one cell Population - Group of individuals of some species Community - Population of all different species in an areaEcosystem - Living communities and non-living physical environment Biotic: living Abiotic: non-living Biosphere - All ecosystems together on earth Know diagram of plant cells - The atom in a single molecules of water form ________ bonds? - Covalent Bonds that form between multiple (different) water molecules because each water molecule has a slightly negative and slightly positive region are called _____ bonds - Hydrogen Which organelle contains strong digestive enzymes (proteins) to break down other structures? - Lysosomes Which of the following is the most complex "Level of Organization" - Organ system Which of the following in the least complex "Level of Organization" - Organelle What are building blocks of proteins? - Amino acids How many amino acids are there? - 20 What is the difference between the "Essential Ones" amino acids? - Ones we have to eat that our body doesn't have What were the 3 types of nucleic acids? - DNARNA ATP Name the broad groups of organic molecules - Carbohydrates Lipids Proteins Nucleic Acids Describe diffusion - 1. Concentration gradient 2. Membrane permeability 3. Surface are How do solutes/particles move - High to low