BIO 210 LAB Exam 1 Latest Update with Verified Solutions

BIO 210 LAB Exam 1 Latest Update with Verified Solutions ____________are substances (solid, liquid, or gas) dissolved by solvents in a solution (lesser amount). solutes ________are the substances that dissolve solutes (greater amount). solvents ___________contain a solvent and the solute. solutions. Example: Salt dissolved in water. Which is the solute and which is the solvent? salt is solute water is solvent Carbon dioxide becomes dissolved by the blood plasma. Which part is the solute? carbon dioxide Carbon dioxide becomes dissolved by the blood plasma. Which part is the solvent? blood plasma ___________means that the movement of the substances across the membrane requires no energy or ATP. passive methods of transport Types of passive transport include: diffusion, osmosis, facilitated diffusion. The type of passive transport used by the cell is dictated by the 1.________ and 2.________ of the substance. charge, size During this type of transport energy or ATP is required? Active methods of transport. Examples of diffusable substances: gases and salts ___________Water always follow what substances during diffusion and osmosis? salt or highest solute concentration A cell is moving some small molecules with their concentration gradient through the phospholipids. What type of membrane transport is the cell using? diffusion The 2 major parts of the cell cycle are: 1. Interphase 2. Mitosis Interphase includes what subphases? G1, S, G2 Where does mitosis occur (in what types of cells)? somatic How many cells result from mitosis? 2 Are the 2 cells created during mitosis identical? Yes, they have the same DNA; they just express themselves differently. During this phase the nucleus has disappeared and duplicated. Chromosomes are visible, centrosomes begin moving apart and spindle is in process of forming. Prophase During this phase centromeres of duplicated chromosomes are aligned at the equator (center of fully formed spindle). Spindle fibers attached to the sister chromatids come from opposite spindle poles. Metaphase During this phase sister chromatids part and become daughter chromosomes that move toward the spindle poles. In this way, each pole receives the same number and kinds of chromosomes as the parent cell. Anaphase During this phase daughter cells are forming as nuclear envelopes and nucleoli reappear. Chromosomes will become indistinct chromatin. Telophase Is mitosis the same as the cell cycle? no it is a part of the cell cycle Where does interphase fit into the cell cycle? before and after mitosis what phase does a cell enter after telophase? interphase Does a cell spend more of its life in interphase or in Mitosis? interphase What is the purpose of the mitotic spindle fibers? to attach to the chromosomes to help separate them During which phase of mitosis are the chromosomes separated and pulled toward opposite ends of the cells by the mitotic spindle fibers? anaphase During which phase of mitosis does the nuclear envelope disappear, the mitotic spindle fibers form, and the chromosomes appear as DNA? prophase Does mitosis make sex cells like egg