1. Characteristics of Life (2).pdf

THE CHARACTERISTICS OF LIFE All living things share the same characteristics of life whether they are small and simple….. ….or large and complex. Whether they look familiar to us….. ….or not. Whether they inhabit the land…...

THE CHARACTERISTICS OF LIFE All living things share the same characteristics of life whether they are small and simple….. ….or large and complex. Whether they look familiar to us….. ….or not. Whether they inhabit the land… ….or the water. Introduction to the Characteristics of life (youtube.com)  CLUES! amoeba paramecium euglena bacterium 1) All living things are made up of cell(s). cardiac cells cheek cells leaf cells onion cells  CELL THEORY states that: 1) Living things are made up of ____ one or _____ more cells. unicellular multicellular 2) All cells come from __________ pre-existing cells. 3) The cell is the basic unit of ___ life.  Cells can come in TWO CATEGORIES: true nucleus and other i) Cells that contain a ___________ membrane bound organelles are called eukaryotic _______________ _________. ii) Cells that have DNA which is NOT surrounded by a membrane _________ and which have no membrane bound organelles _______________ are called __________. prokaryotic Prokaryotic Vs. Eukaryotic Cells - YouTube  CLUES! 2) All living things reproduce.  The main PURPOSE of reproduction is to produce offspring which ensures genetic ________ ______ continuity from generation to generation. There are two MAIN TYPES of reproduction: sperm and ____ a) The type involving ______ egg (otherwise known as gametes _______ ) is called ______ sexual reproduction. b) The type NOT involving sperm and asexual egg is called _______ reproduction.  CLUES! 3) All living things move.  Organisms that are free moving (can move on their own) exhibit locomotion movement called __________. Organisms that are NOT free moving exhibit movements called growth movements of which there are TWO TYPES: ________________ Nastic growth movements b) ______ a) ______ Tropic growth movements are non-directional ______________ directional are __________ responses to stimuli. responses to stimuli. Hungry Venus flytraps snap shut on a host of unfortunate flies | Life - BBC (youtube.com) Phototropism Explained - YouTube  CLUES! 4) All living things acquire and use energy.  ACQUIRING energy can be done in two major ways: a) Some organisms called autotrophs can MAKE their __________ own glucose using a green chlorophyll pigment called __________ along with the energy found in sunlight _______ in a process photosynthesis called _____________. b) Some organisms called heterotrophs CANNOT ____________ make their own glucose. They must consume ________ other organisms for energy.  USING energy is done through ________________ chemical reactions within the cells of an organism. The sum of these chemical reactions is called an __________ which can be divided into organism’s metabolism two branches: small and Anabolism is i) _________ simple ii) Catabolism _________ is the BUILDING molecules the BREAK UP of large DOWN of large and complex and complex molecules from large and molecules into small and complex small and simple simple ones. molecules ones.  CLUES! 5) All living things grow and develop.  For a unicellular organism to grow and develop, it must increase the volume of its cytoplasm _________, which cytosol (the liquid) involves gaining more ______ and organelles _________ (the machinery of the cell). For a multicellular organism to grow and develop, it must undergo cell _______ division and ____________ specialization. Cells specialize into different types of tissues.  CLUES! 6) All living things have levels of organization. atom organ system molecule macro- molecule organ organelle cell tissues organism  CLUES! 7) All living things contain genetic information.  This genetic information comes in the form of a molecule called DNA ____ which stands for deoxyribonucleic acid ___________________. Viruses also contain genetic information in the form of DNA RNA (in retroviruses). DNA or ____ However, viruses do not exhibit some of the other characteristics of life, and are therefore classified as ________. non-living  CLUES! summer winter 8) All living things respond water to their environment. goldenrod goldenrod gall goldenrod goldenrod gall fly larvae gall fly  All living things respond to _______ changes (stimuli) in their environment. These changes may be in their external _______ environment internal environment. or their _______ Insulin Response This response to change brings the organism back to homeostasis which is a ________ equilibrium or ___________ constant internal state.  CLUES! whale evolution 9) All living things adapt and evolve.  The British naturalist named _____________ Charles Darwin came up with a mechanism for evolution ________ which he called natural selection ______________. Due to random _________ mutations in DNA, individuals will differ in genetically determined traits. Individuals with traits or adaptations __________ that allow them to SURVIVE and REPRODUCE better than others are said to fitness. have more ______ https://www.youtube.com/watch?v=cQPVXrV0GNA