HOSA Biology Comprehensive Practice Exam Questions And Correct Answers.

What is Biology? - correct answers the study of living things Cellular Organization - correct answers All living things are composed of one or more cells Levels of Biological Organization - correct answers atom, molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere Homestacis - correct answers The maintenance of a constant internal environment Metabolism - correct answers Metabolism involves the breakdown of substances for energy (catabolism) and the synthesis of new molecules (anabolism). How does reproduction occur - correct answers Reproduction can be asexual (single parent) or sexual (two parents), depending on the organism. How does evolution occur? - correct answers Evolution is driven by mechanisms such as natural selection, genetic variation, and adaptation to the environment. What Is Genetic Information - correct answers Genetic material (DNA or RNA) carries the hereditary information that is passed from one generation to the next. What are Cells - correct answers Cells are the basic units of structure and function in living things What are molecules? - correct answers a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. What are nucleic acids? - correct answers DNA and RNA What are proteins? - correct answers Amino Acids, used in structural support and enzymatic catalysis. What are carbohydrates? - correct answers sugars and starches What are lipids? - correct answers fats, oils, waxes What are organelles? - correct answers Tiny organs. They work together for the cell to function. What are tissues? - correct answers Groups of cells that are similar in structure and function What are organs? - correct answers Organs are groups of tissues that work together to perform certain functions What is an organ system? - correct answers group of organs that work together to perform a specific function cell wall function - correct answers provides support and protection for plant cells What is the cell wall made up of? - correct answers cellulose What is the cell (plasma) membrane? - correct answers A boundary of the cell/the outside edges of the cell. It controls what enters and leaves the cell. It is selectively permeable. What is the cell (plasma) membrane made up of? - correct answers phospholipid bilayer What is cytoplasm used for? - correct answers Jelly-like substance where chemical reactions take place in the Mitochondria where aerobic respiration happens.