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Living Things Microscopes & Chemicals Cells 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500 Osmosis Respiration Photo. Mitosis Which of the following is NOT a characteristic that all living things share? A – Cellular organization B – Using energy C – Movement D - Reproduction C – Movement A change in an organism’s surroundings that causes it to react is called… A Stimulus Which of the following do all living things need to survive? A – Water B – Oxygen C – Sunlight D – Carbon Dioxide A - Water The source of energy for most autotrophs is… The Sun Homeostasis refers to.. A – an organism’s ability to maintain stable internal conditions B – an organism’s ability to compete for living space C- an organism’s ability to dissolve chemicals D – an organism’s ability to obtain energy A – An organism’s ability to maintain stable internal conditions The invention of the microscope made it possible for people to discover and learn about… A – Plants B – Animals C – Skin D - Cells D - Cells The experiments of Redi and Pasteur helped to demonstrate that… A – Organisms develop over time B – Organisms do not arise from nonliving materials C – Organisms respond to stimuli D – Organisms are made of cells B – Organisms do not arise from nonliving materials Sugar molecules can combine to form large molecules called… A – Proteins B – Starches C – Enzymes D - Lipids B – Starches The most abundant chemical found in living things is…. Water All organic compounds contain what element? Carbon What is the function of a cell membrane? A – To protect and support the cell B – To perform different functions in each cell C – To control what enters and leaves the cell D – To form a hard outer covering for the cell C – To control what enters and leaves the cell Which organelle produces proteins for the cell? Ribosomes Cells in multicellular organisms… A- All look the same B – All have the same structure C – Are quite different from one another D – Are the same size in every part of the organism C – Are quite different from one another Why is water important for a cell? A- Water is the main ingredient in DNA B- All proteins require water to function C – Most chemical reactions in cells require water D – Water is an essential organic compound for the body. C – Most chemical reactions in cells require water The cell theory states: Cells are the basic unit of structure and function, all living things are composed of cells, and… All cells are produced from other cells. What term refers to the movement of water molecules through a selectively permeable membrane? Osmosis What term refers to the movement of materials through a cell membrane without using energy? Passive Transport What captures sunlight during photosynthesis? Chlorophyll and other pigments What are the raw materials of photosynthesis? CO2, H2O, and energy Fermentation is the production of energy without oxygen. Which of these choices causes alcoholic fermentation? A – Carbon Dioxide B – Lactic Acid C – Bread D - Yeast D - Yeast What happens during respiration? A – Oxygen is released into the air B – Glucose is broken down, releasing energy C – Carbohydrates are released into the bloodstream. D – Water and carbon dioxide are converted into energy. B – Glucose is broken down, releasing energy Mitosis is the stage during which… A – A cell’s nucleus divides into two new nuclei. B – A cell’s DNA is replicated C – The cell divides into two new cells D – The cell’s cytoplasm divides. A – A cell’s nucleus divides into two new nuclei. What are chromatids? A – Identical strands of chromosomes B – Identical daughter cells C – Double rods of condensed chromatin D – Pigments that absorb light energy A – Identical strands of chromosomes What forms around the chromatids during mitosis? Two new nuclei Each rung of the DNA ladder is made of… A – A single nitrogen base B – A pair of nitrogen bases C – Three nitrogen bases D – Four nitrogen bases B – A pair of nitrogen bases