Worksheets2.1 Digestion
Total questions: 10
Worksheet time: 8mins
Frogs needs a lot of energy to hop around. What molecules provide energy for the frog?
all of these
fats
proteins
carbohydrates
Why does the frog eat the cricket?
for oxygen
to be broken down for energy to be transferred
to create waste
for fun
After the frog eats the grasshopper, what happens where? Match the process of digestion to the correct organ.
Breaks down grasshopper into LOM
mouth
Breaks down LOM into SOM
stomach
SOM to molecules for absorption into cells
small intestines
Inorganic molecules pooped out as waste
large intestines
oxygen and carbon dioxide are exchanged
lungs
The frog eats 4 grams of crickets a day and poops out 2 grams. The frog did not gain any weight
Which statement is true?
The poop is digested food that had already beed used for energy
The frog ate more food than it needed for energy, so it pooped out extra atoms
The poop contains molecules from food that bird could not digest and use.
Why does the frog need oxygen to hop?
oxygen is needed to breathe
oxygen is needed to pump blood
oxygen is needed to break down food to transfer energy in cells
oxygen is needed to break down LOM into SOM
The frog ate 6 grams of crickets and did not gain any weight. The frog only pooped out 4 grams a day. Where did the other 2 grams go?
used to build muscles in the frog
stored as fat in the frog
breathed out as carbon dioxide
the other two grams were secretely pooped out
If the frog eats too many crickets, what happens?
poops out extra atoms
stored as fat in the frog
stored as carbon dioxide in the body
poops out organic molecules
Which of the following statements is false?
Poop is inorganic waste
Poop is not used for energy
Poop is digested food already used for energy
Match what enters and exits the frog.
oxygen
enters through the mouth/nose
carbon dioxide
exits through the mouth/nose
food
enters through the mouth
inorganic waste
exits through the rectum
Place the steps of digestion in the correct order showing what happens to food.
Food
LOM
SOM
molecules into cells
inorganic molecules expelled
