SCIENCE (biology)

• The nucleus is the control center of the cell.
• Nucleolus - produces ribosomes
• Ribosome - site of protein synthesis
• Chromatin - DNA, RNA, proteins that make up chromosomes
• Cell membrane - controls what enters or leaves the cell
• Mitochondria - powerhouse of the cell
• Golgi apparatus - modifies and packages proteins
• Lysosomes - digestive enzymes
• Vacuole - stores water, waste products, pigments, enzymes
• Lysosomes - digestive organelles
• Endoplasmic Reticulum - network of flattened sacs involved in protein production and transport
• Centrioles - involved in cell division
• Nucleus - contains genetic material
• Chloroplast - site of photosynthesis
• Mitochondria - powerhouse of the cell where ATP is produced through aerobic respiration
• Mitochondria - site of cellular respiration
• biomolecules are carbohydrates, fats or lipids, proteins, nucleic acids
• carbohydrates are made from CHON (Carbon, Hydrogen, Oxygen, Nitrogen)
• Protein's building blocks are amino acids. a large biological molecules consisting of chains of amino acids is called polypeptides
• nucleic acids stores genetic informations
• dna stands for deoxyribonucleic acid
• rna stands for ribonucleic acids
• prokaryotic cells is a simple, single-celled organisms without organelles and nucleus
• eukaryotic cells have nucleus and organelles
• passive transport is a movement of ions across the cell membranes without need of energy input
• active transport is the movement of molecules across membrane from a region of their lower concentration to a region of their higher concentration
• diffusion is a net movement of molecules from a region of high concentration to once of a lower concentration
• osmosis where solvent molecules move from semipermeable membrane
• mitosis includes two parent cells forming a daughter cell
• meiosis includes the creation of sex cells
• merismatic tissues is a mass of young cells
• parenchyma tissue is made up of living cells that are not specialized
• collenchyma tissue provides support but can grow with plant growth