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Chapter 13 sciencep

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the organelle that acts as the cells control center and directs the cells activities. NUCLEUS
organelles that capture energy from sunlight and use it to produce food for the cell. CHLOROPLAST
organelles that convert energy in food to energy the cell can use to carry out its functions. MITOCHONDRIA
plans make their own food in the form of sugars/ glucose using: water, carbon dioxide, and sunlight
a community of organisms that live in a particular area, along with their nonliving environment. ECOSYSTEM
the process by which a cell captures energy in sunlight and uses it to make food. PHOTOSYNTHESIS
nearly all living things obtain energy either: directly or indirectly from the energy of sunlight that is captured during photosynthesis.
an organism that makes its own food is called a producer or an: autotroph
an organism that cannot make its own food is called a consumer or a: heterotroph
why do living things need energy? To metabolize, reproduce, develop, move, perform functions, etc. Pretty much everything the body needs to do requires energy. so that they remain living things and not decomposed things.
how do plant's make their own food? during photosynthesis plants and some other organisms absorb energy from the sun use the energy to convert carbon dioxide and waters into sugar and oxygen.
the main pigment for photosynthesis in chloroplasts chlorophyll
what happens in the first stage of photosynthesis? energy from the sunlight is captured.
what happens in the second stage of photosynthesis? cells produce sugars
how do cells produce sugars in photosynthesis? powered by the energy captured hydrogen and carbon dioxide undergo a series of reactions that result in sugars.
what is one important sugar that is produced? glucose
another product of photosynthesis is: oxygen gas O2, oxygen forms during the first stage when water molecules are split apart.
when you eat foofd from plants such as potatoes or carrots you are also eating the plants______________ stored energy
what in plant cells captures energy from the sunlight? chlorophyll
why would a plant produce more oxygen on a sunny day rather than a cloudy day? because photosynthesis is done best on a sunny day by capturing energy from the sunlight and one of the products of photosynthesis is oxygen.
what happens during photosynthesis: powered by the energy captured in stage 1 hydrogen and carbon dioxide undergo a series of reactions that result in sugars.
the process by which cells obtain energy from glucose. cellular respiration
what happens during cellular respiration? cells break down glucose and other molecules from the food in the presence of oxygen, releasing energy.
what are called the powerhouses of the cell? mitochondria
cellular respiration equation: glucose + oxygen = carbon + water + energy
an energy releasing process that does not require oxygen, plant cells releasing energy for cell functioning: fermentation
what happens during fermentation: cells release energy from food without using oxygen.
the process by which molecules of liquid water absorb energy and change to gas is called: evaporation
the process by which a gas changes to liquid is called: condensation
rain, snow, sleet, or hail. precipitation
in ecosystems, producers, consumers, and decomposers all play roles in: recycling carbon, oxygen, and nitrogen
the process by which carbon moves within and between organisms and their physical environment the carbon cycle
the processes by which carbon and oxygen are recycled are linked. the oxygen cycle
human activities also affect the levels of carbon and oxygen in the atmosphere. human impact
the process of changing free nitrogen into a form of nitrogen. nitrogen fixation.
once nitrogen is fixed, producers can use it to: build proteins and other complex compounds.
what eats nitrogen compounds in plants? consumers
what uses simple nitrogen compounds to make proteins and other complex compounds? producers
what returns simple nitrogen compounds to the soil? decomposers
bacteria in root nodules fix what into simple compounds ? free nitrogen
soil bacteria release what into the air? free nitrogen
respiration equation: glucose + oxygen ----- carbon dioxide + water + energy
according to the what the total amount of matter and energy in the earth system stays constant. the conservation laws
the process of evaporation, condensation, and precipitation make up: the water cycle.
matter and energy are conserved in the ecosystems through the processes of: photosynthesis and respiration
light energy figure shows : carbon dioxide as gray, water as blue, oxygen as red, and sugars as green.
in which cell structure does cellular respiration take place? mitochondria
what is one common food that is made with the help of fermentation? bread
what happens during the first stage of cellular respiration? molecules of glucose are broke down into smaller molecules.
what happens during the second stage of cellular respiration? the small molecules are broken down even more.
how is breathing related to cellular respiration? the word respiration can mean breathing or moving air in and out of your lungs. so in this case they're pretty related.
which group of organisms is the source of oxygen in the oxygen cycle? producers.
what is the role of the producer in the carbon cycle? to take in carbon dioxide gas from the air during photosynthesis.
what is the role of the consumer in the carbon cycle/ consumers eat producers as they take in the carbon-containing food molecules. and break down the food to obtain energy.
Created by: ashhhcabrera