
Unit 1 Food-Matter & Energy
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Easy
Susan Flaherty
Used 3+ times
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10 questions
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1.
FLASHCARD QUESTION
Front
what is photosynthesis?
Back
plants convert light energy to chemical energy in food
plants take in CO2, H2O and sunlight
animals eat the glucose for food energy, & breathe in the oxygen
2.
FLASHCARD QUESTION
Front
what is cellular respiration?
Back
energy is released from food
food molecules are broken down by our digestive system
we breathe O2
food & O2 are carried to the cells though our bloodstream
energy is released from the food
all plants and animals need to release energy from food
3.
FLASHCARD QUESTION
Front
where does our food come from?
Back
glucose made during photosynthesis
all the energy in our food originates with the sun
4.
FLASHCARD QUESTION
Front
what does a human or animal's body do with food once it is eaten?
Back
food molecules are broken down by our digestive system
carbs are broken into glucose
proteins into amino acids
food subunits are carried to all the cells of our body by the bloodstream
5.
FLASHCARD QUESTION
Front
what does our body use food molecules for?
Back
glucose is used for energy
protein is used for growth & repair
food not used right away is converted to fats for long term storage
6.
FLASHCARD QUESTION
Front
why do we need to eat food but plants don't?
Back
plants make their own food molecules during photosynthesis
animals can't make food molecules, so we have to eat
7.
FLASHCARD QUESTION
Front
what processes do plants perform when it is light? dark?
Back
photosynthesis when it is light
plants perform cellular respiration at all times because cells need energy to function
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