autotroph

Encyclopedic entry. One autotroph is an organism the can create its very own food making use of light, water, carbon dioxide, or other chemicals. Since autotrophs develop their very own food, they are sometimes dubbed producers.

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An autotroph is an organism the can create its own food utilizing light, water, carbon dioxide, or various other chemicals. Due to the fact that autotrophs produce their very own food, they room sometimes dubbed producers.Plants room the most familiar type of autotroph, however there are plenty of different kinds of autotrophic organisms. Algae, i m sorry live in water and also whose larger develops are recognized as seaweed, is autotrophic. Phytoplankton, small organisms the live in the ocean, space autotrophs. Some varieties of bacteria are autotrophs. Many autotrophs use a procedure called photosynthesis to do their food. In photosynthesis, autotrophs use power from the sunlight to transform water indigenous the soil and carbon dioxide from the air right into a nutrient called glucose. Glucose is a kind of sugar. The glucose offers plants energy. Plants likewise use glucose to do cellulose, a substance they usage to grow and also build cell walls.All plants with environment-friendly leaves, indigenous the tiniest mosses come towering fir trees, synthesize, or create, their own food v photosynthesis. Algae, phytoplankton, and also some bacteria additionally perform photosynthesis.Some rare autotrophs produce food through a procedure called chemosynthesis, rather than through photosynthesis. Autotrophs that perform chemosynthesis execute not use power from the sunlight to develop food. Instead, they make food using energy from chemical reactions, regularly combining hydrogen sulfide or methane v oxygen. Organisms that usage chemosynthesis live in too much environments, where the toxicity chemicals necessary for oxidation are found. For example, bacteria life in energetic volcanoes oxidization sulfur to develop their own food. In ~ Yellowstone national Park in the U.S. Says of Wyoming, Idaho, and Montana, bacteria capable of chemosynthesis have been found in hot springs.Bacteria that live in the deep ocean, close to hydrothermal vents, additionally produce food with chemosynthesis. A hydrothermal vent is a narrow crack in the seafloor. Seawater look down through the crack into hot, partly melted rock below. The boiling-hot water then circulates back up right into the ocean, loaded v minerals indigenous the warm rock. These minerals include hydrogen sulfide, i m sorry the bacteria usage in chemosynthesis. Autotrophic bacteria that produce food through chemosynthesis have additionally been uncovered at areas on the seafloor referred to as cold seeps. At cold seeps, hydrogen sulfide and also methane seep up from in ~ the seafloor and mix with the ocean water and dissolved carbon dioxide. The autotrophic bacteria oxidize this chemicals to create energy.

Autotrophs in the Food ChainTo explain a food chain—a summary of which organisms eat which other organisms in the wild—scientists group organisms into trophic, or nutritional, levels. There are three trophic levels. Because autotrophs execute not consume various other organisms, they space the first trophic level. Autotrophs are eaten by herbivores, organisms the consume plants. Herbivores are the 2nd trophic level. Carnivores, creatures that eat meat, and omnivores, creatures that eat all varieties of organisms, room the 3rd trophic level. Herbivores, carnivores, and omnivores space all consumers—they consume nutrients rather than making their own. Herbivores are major consumers. Carnivores and omnivores are second consumers.All food chains start with some kind of autotroph (producer). For example, autotrophs such as grasses thrive in the Rocky Mountains. Mule deer room herbivores (primary consumers), which feed on the autotrophic grasses. Carnivores (secondary consumers) such as hill lions hunt and also consume the deer.In hydrothermal vents, the food chain’s producer is autotrophic bacteria. Major consumers such together snails and also mussels consume the autotrophs. Carnivores such together octopus consume the snails and also mussels.An rise in the variety of autotrophs will commonly lead to an increase in the variety of animals the eat them. However, a to decrease in the number and variety of autotrophs in one area deserve to devastate the entire food chain. If a wooded area burns in a woodland fire or is clearing to construct a to buy mall, herbivores such as rabbits can no longer discover food. Some of the rabbits might move come a far better habitat, and some may die. There is no the rabbits, foxes and also other meat-eaters that feed on them likewise lose their food source. They, too, must move to survive.


Vocabulary

Term part of Speech meaning

algae

plural noun

(singular: alga) varied group the aquatic organisms, the biggest of which are seaweeds.

autotroph

noun

organism the can produce its very own food and also nutrients from chemicals in the atmosphere, usually through photosynthesis or chemosynthesis.

bacteria

plural noun

(singular: bacterium) single-celled organisms found in every ecosystem top top Earth.

carbon dioxide

noun

greenhouse gas developed by animals during respiration and used through plants throughout photosynthesis. Carbon dioxide is additionally the byproduct of burning fossil fuels.

carnivore

noun

organism the eats meat.

cellulose

noun

complex carbohydrate that creates the tough, rigid cell wall of many plants and is necessary for such products as paper and textiles.

cell wall

noun

tough, rigid, and non-living obstacle surrounding the soft cells of most autotrophs, such as plants.

chemosynthesis

noun

process by which some microbes revolve carbon dioxide and water into carbohydrates utilizing energy acquired from not natural chemical reactions.

circulate

verb

to move around, often in a pattern.

cold seep

noun

marine atmosphere where hydrogen sulfide and methane seep up from in ~ the seafloor and also mix with the s water.

consume

verb

to usage up.

consumer

noun

organism top top the food chain that counts on autotrophs (producers) or various other consumers because that food, nutrition, and also energy.

convert

verb

to readjust from one point to another.

decrease

verb

to lower.

devastate

verb

to destroy.

energy

noun

capacity to carry out work.

fir

noun

variety of pine tree.

food

noun

material, commonly of tree or pet origin, that living organisms usage to obtain nutrients.

food chain

noun

group that organisms connected in stimulate of the food they eat, from producer to consumers, and from prey, predators, scavengers, and also decomposers.

forest

noun

ecosystem filled v trees and underbrush.

fox

noun

type the mammal concerned a dog through a slim muzzle and also thick tail.

glucose

noun

"simple sugar" chemical produced by many plants during photosynthesis.

grass

noun

type of plant with narrow leaves.

habitat

noun

environment where an organism resides throughout the year or for much shorter periods the time.

herbivore

noun

organism that eats mostly plants and also other producers.

hot spring

noun

small flow of water flowing naturally from an secret water source heated by hot or molten rock.

hydrogen sulfide

noun

chemical compound gas responsible for the foul smell of rotten eggs.

hydrothermal

adjective

related to hot water, particularly water heated by the Earth"s internal temperature.

increase

verb

to add or end up being larger.

methane

noun

chemical compound that is the an easy ingredient of organic gas.

mineral

noun

inorganic product that has actually a characteristic chemical composition and specific crystal structure.

moss

noun

tiny plant usually discovered in moist, shady areas.

mountain lion

noun

large cat native to North and South America. Additionally called a cougar, puma, catamount, and panther.

mule deer

noun

large deer (mammal) with lengthy ears native to phibìc America.

mussel

noun

aquatic animal with 2 shells that can open and close for food or defense.

nutrient

noun

substance an organism demands for energy, growth, and life.

octopus

noun

marine animal (mollusk) through a soft body and also eight arms.

omnivore

noun

organism that eats a variety of organisms, including plants, animals, and fungi.

organism

noun

living or once-living thing.

oxidation

noun

chemical procedure of a substance combining v oxygen to change the substance"s physical and molecular structure.

photosynthesis

noun

process whereby plants revolve water, sunlight, and also carbon dioxide into water, oxygen, and an easy sugars.

phytoplankton

noun

microscopic biology that lives in the ocean and also can transform light energy to chemical energy through photosynthesis.

plant

noun

organism the produces its very own food with photosynthesis and whose cells have actually walls.

primary consumer

noun

organism that eats producers; herbivores.

producer

noun

organism top top the food chain that can produce its very own energy and nutrients. Additionally called one autotroph.

rabbit

noun

mammal with lengthy ears the hops on solid hind legs.

Rocky Mountains

noun

mountain range in the western united States and Canada.

seafloor

noun

surface layer of the bottom of the ocean.

seaweed

noun

marine algae. Seaweed deserve to be written of brown, green, or red algae, and also "blue-green algae," i m sorry is in reality bacteria.

secondary consumer

noun

organism the eats meat.

seep

verb

to slowly flow through a border.

shrub

noun

type of plant, smaller sized than a tree but having woody branches.

snail

noun

marine or terrestrial pet (mollusk) with a shell and also one foot on which that glides.

soil

noun

top great of the Earth"s surface where plants have the right to grow.

sugar

noun

type of chemical compound the is sweet-tasting and in some form essential to life.

sulfur

noun

chemical facet with the prize S.

toxic

adjective

poisonous.

trophic level

noun

one of three positions ~ above the food chain: autotrophs (first), herbivores (second), and also carnivores and omnivores (third).

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volcano

noun

an opening in the Earth"s crust, through which lava, ash, and also gases erupt, and also the cone developed by eruptions.