PCB 3023 Full Solution Pack Updated 2024 with complete solutions

eukaryotic cell types - animal - - nucleus - linear nuclear chromosomes - mitochondria - centrioles -- microtubule organizing center - no cell wall or capsule endosymbiosis - mitochondria and chloroplasts were prokaryotes that entered eukaryotic cells and became specialized to perform specifi...

Heterochromatin - Regions in chromosome where fibers are highly condensed Few genes - resistant to transcription by not completely exempt Concentrated in centromeres and telomeres What is a simple genome and which type of cell has one? - Codes for fewer proteins then a complex genome, prokaryote...

Composition of Lipid Bilayer - 50% lipids (outnumber all other molecules 50:1), proteins (50% of mass of membranes), cholesterol Plasma Membrane (Function) - Enclose Cells, Organelles 1. Defines Boundaries to regulate chemical composition and environment 2. Define malleable borders Saturated - ...

common characteristics of cytoskeletal filaments - 1. They are dynamic and adaptable 2. They can form stable structures 3. Assemble from small subunits movements exhibited by lipids in membranes - 1. lateral diffusion 2. trasverse fluctuation 3. rotation 4. flexion 5. flip-flop where can cel...

Which of the following interactions are generally considered to be unfavorable? - Interaction between Arg and Lys side chains at a pH of 7, assuming standard pKa values for Arg and Lys Proteins can be denatured by a) Changing temperature b) Adding urea to solution c) Changing solvent d) all choic...

Why would covalent bonds break in water? Why can they? - Because more stable or energetically favored bonds could be formed. They can break because the loss of energy by breaking hydrogen bonds in compensated for in the formation of new covalent bonds. Limitation to eukaryotic cells and photosynt...

formation of macromolecules by condensation reactions - subunits are added to one end of a growing chain by dehydration synthesis What Constrains the size of a cell? - The ratio of surface area to volume. Smaller cells have a greater surface area to volume ratio. Miller-Urey experiment - recreat...