MCAT Biology Revision Questions and Answers for 2024 students.

Cell theory - Ans all living things are composed of cells all cells come from other cells The cell is the basic functional unit of life Cells carry genetic info in the form of DNA Eukaryotic cells - AnsHave membrane bond organelles, a nucleus and many form organs Phospholipids - AnsCell membranes and membrane bound organelles contain this and make the interior and exterior hydrophilic and the core hypdrophobic Cytosol - Anssuspends the organelles and allows diffusion of molecules throughout the cell Nucleus - AnsContains DNA organized into chromosomes, surrounded by an envelope nuclear pores - Ansstructures in the nuclear envelope that allow passage of certain materials between the cell nucleus and the cytoplasm Genes - AnsDNA segments that serve as the key functional units in hereditary transmission. Nucleolus - AnsMakes ribosomes inside the nucleus (rRNA) Mitochondria - AnsPowerhouse of the cell, organelle that is the site of ATP (energy) production Cytosol - AnsThe outer membrane of the mitochondria forms a barrier with