science

Flashcard #1

Term: What is cellular respiration?

Definition: Cellular respiration is the process by which cells break down glucose to produce ATP (energy).

Flashcard #2

Term: What is aerobic respiration?

Definition: Aerobic respiration is a type of respiration that uses oxygen and produces a large amount of ATP.

Flashcard #3

Term: What is anaerobic respiration?

Definition: Anaerobic respiration is a type of respiration that occurs without oxygen and produces less ATP.

Flashcard #4

Term: What is fermentation?

Definition: Fermentation is an anaerobic process that produces small amounts of ATP and creates lactic acid or alcohol.

Flashcard #5

Term: What is chemosynthesis?

Definition: Chemosynthesis is a process where bacteria produce energy using chemicals instead of sunlight.

Flashcard #6

Term: What is the carbon cycle?

Definition: The carbon cycle describes the movement of carbon through the air, water, soil, and living organisms.

Flashcard #7

Term: What is the nitrogen cycle?

Definition: The nitrogen cycle describes the movement of nitrogen through the atmosphere, soil, and living things.

Flashcard #8

Term: What is the water cycle?

Definition: The water cycle describes the movement of water through evaporation, condensation, precipitation, and runoff.

Flashcard #9

Term: What is transpiration?

Definition: Transpiration is the release of water vapor from plant leaves.

Flashcard #10

Term: What does the energy pyramid illustrate?

Definition: The energy pyramid illustrates how energy decreases at each trophic level, with only about 10% transferring upward.

Flashcard #11

Term: What is biomass?

Definition: Biomass is the total mass of living organisms in a certain area.

Flashcard #12

Term: What is a trophic level?

Definition: A trophic level is the position an organism holds in a food chain.

Flashcard #13

Term: What is an autotroph?

Definition: An autotroph (producer) is an organism that makes its own food, such as plants and algae.

Flashcard #14

Term: What is a heterotroph?

Definition: A heterotroph (consumer) is an organism that gets energy by eating other organisms.

Flashcard #15

Term: What is a herbivore?

Definition: A herbivore is an organism that eats only plants.

Flashcard #16

Term: What is a carnivore?

Definition: A carnivore is an organism that eats only animals.

Flashcard #17

Term: What is an omnivore?

Definition: An omnivore is an organism that eats both plants and animals.

Flashcard #18

Term: What is a scavenger?

Definition: A scavenger is an organism that eats dead animals.

Flashcard #19

Term: What is a decomposer?

Definition: A decomposer is an organism that breaks down dead organisms and returns nutrients to the environment.

Flashcard #20

Term: What is ATP?

Definition: ATP (Adenosine Triphosphate) is the main energy molecule used by cells.

Flashcard #21

Term: What is photosynthesis?

Definition: Photosynthesis is a process in which plants use sunlight, water, and carbon dioxide to make glucose and oxygen.

Flashcard #22

Term: What is a pigment?

Definition: A pigment is a molecule that absorbs light energy.

Flashcard #23

Term: What is chlorophyll?

Definition: Chlorophyll is the green pigment that absorbs light for photosynthesis.

Flashcard #24

Term: What is the electromagnetic spectrum?

Definition: The electromagnetic spectrum is the range of light energy, with visible light being used in photosynthesis.

Flashcard #25

Term: What is a food chain?

Definition: A food chain is a simple line showing who eats whom.