IB Biology HL Year 1 Correct 100%

Cell Theory - ANSWERall living things are made of cells cell is the smallest unit of life cells only come from other cells cell - ANSWERthe smallest living unit of an organism organelle - ANSWERsmall, membrane-bound parts of a cell that help it function mitosis - ANSWERgenetically identical diploid cell meiosis - ANSWERhaploid gametes homeostasis - ANSWERmaintaining a cells optimum conditions reproduction - ANSWERsexual or asexual excretion - ANSWERwaste materials out of the cell nutrition - ANSWERsynthesizing molecules (photosynthesis) or absorbing matter (food particles, endocytosis) # of specialized cells in humans - ANSWER220 stem cells - ANSWERunspecialized cells that can differentiate stem cells found in... - ANSWERembryos, blood of the umbilical cord, or adult tissue stem cell therapy - ANSWERused to treat diseases that destroy cells example: Stargardts disease cell wall - ANSWERhard, rigid outer layer that protects the cell made up of peptidoglycan prokaryotes and plants plasma membrane/cell membrane - ANSWERthin inner layer underneath the cell wall, phospholipids all flagella - ANSWERlong extensions off of the cell that help guide it prokaryotes pili - ANSWERsmall, short hairs around the cell that help it attach to and interact with other cells prokaryotes ribosomes - ANSWERlocation of protein synthesis - free floating or on rough ER 70S in prokaryotes 80S in eukaryotes nucleoid - ANSWERlocation in prokaryotes where the free floating DNA is located endoplasmic reticulum - ANSWERrough ER - transfers materials and proteins after protein synthesis smooth ER - transports materials lysosomes - ANSWERorganelles that contain highly acidic chemicals that are used to digest waste materials Golgi apparatus - ANSWERpackages materials to be sent out of the cell