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Biology
Stack #60928
| Question | Answer |
|---|---|
| Transport protein that provides a tubelike opening in the plasma membrane through which particles can diffuse | channel protein |
| Particle movement from an are of higher concentration to an are of lower concentration | passive transport |
| Transport protein that changes shape when a particle binds it | carrier protein |
| The condition that is changed by the experimenter | independent variable |
| The condition being observed or measure in an experiment | dependent variable |
| A group of organisms of one species that interbreed and live in the same place at the same time | population |
| A collection of interacting populations | community |
| Interactions amoung the populations and abiotic factors in a community | ecosystem |
| occurs between organisms when resouces are scarce | competition |
| A terrestrial ecosystem | forest |
| what replenishes energy lost at each trophic lever of an ecosystem | sunlight |
| Besides energy, What moves through the organisms at each trophic level of an ecosystem? | nutrients |
| What do autotrophs and herterotrophs use carbon molecule for? | energy and growth |
| What is released when decomposers break down the carbon molecules in dead organisms? | carbon dioxide |
| What do fertilizers provide plants with? | nitrogen |
| waht converts nitrogen in the air into a form plants can use? | bacteria and lightning |
| What do plants use nitrogen for? | To make proteins. |
| What do animals get phosphorus from? | eating plants |
| What is living material | Biomass |
| What is the part of marine biomes that is shallow enough to be penetrated by sunlight | photic |
| What are deep-water regions of marine biomes that receive no sunlight called? | aphotic |
| What do rivers flow into? | a lake |
| What are the greatest number of organisms living in the photic zone of a marine biome? | plants |
| What two abiotic factors generally determine the type of climax community that will develop in a particular part of the world? | temperature and precipitation |
| In which terrestrial biome id the ground permantly frozen? | Tundra |
| What is the name of the biome that has arid land with sparse, drought-resistant plants | Desert |
| What is the name of the biome that is the largest and supporsts small plants and grasses but few trees? | Grassland |
| What is the name of the biome that is treeles land and only small plants and grasses grow during the long summer days | Tundra |
| What is the name of the biome that has warm, wet land that supports many species and organisms? | Tropical Rainforest |
| What is the name of the biome with coniferous forests, peat swamps, and long, harsh winters? | Taiga |
| What is the name of the biome that is populated with broad-leaveed hardwood trees that lose their leaves annually | Temperate Forest |
| What is a sequence of community changes where soil is formed, allowing small, weedy plants to inhabit the area | Primary Succesion |
| What is a sequence of community changes occuring as a result of a natural disaster, such as a forest fire | Secondary Succession |
| A stable, mature community with little or no succession ovvuring | Climax Community |
| An example of a biotic limiting factor affecting a community of organisms? | amount of plant growth |
| An example of an abiotic limiting factor affecting a community of organisms? | a severe drought |
| T/F In a water molecule, electrons are shared equally between the hydrogen atoms and oxygen atom. | False |
| T/F The attraction of opposite cahrges between hydrogen and oxygen forms a week ozygen bond. | False |
| T/F Because of it's polarity, water can move from the roots of a plant up to its leaves. | True |
| T/F Water changes temperature easily | False |
| T/F Unlike most substances, water expands when it freezes. | True |
| who was the first scientist to observe evidence of the random motion of molecules? | Brown |
| Why does duffustion occur? | The random movement of particles |
| What will happen to the color when a few drops of colored corn syrup is added to a beaker of pure corn syrup? | It will start to diffuse |
| How can diffusion be accelerated? | Increasing the temperature |
| What is the difference in concentration of a substance across space called? | Concentration Gradient |
| What are thin, hollow cylinders made of protein? | Microtubules |
| What is composed of thin, fibrous elements that form a gramework for the cell? | cytoskeleton |
| What are short, numerous, hairlike projections from the plasma membrane called? | cilia |
| Which is more numerous, Flagella or Cilia? | Cilia |
| Who was the first scientist to describe living cells as seen through a simple telescope? | Leeuwenhoek |
| What was the name of the scientist who observed that cork was composed of tiny, hollow boxes called cell? | Hooke |
| who was the scientist who concluded tha all plants are composed of cells? | Schleiden |
| Who is the scientist who concluded that all animals are composed of cells | Schwann |
| Where is the energy in the ATP molecule stored? | In its chemical bond |
| What is another name for The calvin Cycle? | the light-independent reactions |
| Where does the Calvin Cycle take place? | The Stroma |
| What is the product of the light-dependent reactions used in the Calvin cylce? | NADPH |
| What gas is used in the first step of the Calvin cycle? | Carbon Dioxide |
| What is a change in a single base pair in DNA? | point mutation |
| Where are chromosomal mutations most common? | in plants |
| What is the failure of ahomologous chromosmes to separate properly? | nondisjuntion |
Created by:
atownQT