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WorksheetsMetabolic Reactions Review
Total questions: 14
Worksheet time: 11mins
What two substances do your cells need for energy?
Oxygen and Food
Oxygen and Water
Sleep and Air
Methane and Hydrogen Sulfide
T/F: Your heart and lungs work harder during exercise because your body is trying to get more oxygen to all the cells of the body to replenish energy.
True
False
Why does your body have a heart?
It acts as a pump so that blood can get to every part of the body
It controls the actions of the rest of your body
It creates blood
It is the "brain" of all of your bones
Your digestive system breaks down food and helps turn it into energy. But how do those food molecules get delivered to every cell in the body?
By the respiratory system
By the circulatory system
By teleporation
By pooping
Why do we have fat tissue attached to our bodies?
Because it helps us move easier
Because our bodies can burn it to use as a "back-up" energy source
Because fat tissue creates blood for our body
Because whenever we burn fat, it give our body oxygen
Why is blood so important for energy?
Has the brain, spinal cord and nerves in it
It has oxygen and food molecules in it, which is delivered to every cell in the body
It looks really cool
It allows us to sleep
This system transports oxygen and food to all of the body's cells!
Digestive system
Respiratory system
Nervous system
Circulatory system
When we burn fat, the fat molecules react with oxygen. We then breathe out:
Carbon Dioxide and Water
Oxygen and Methane
Fire
Smoke
Your circulatory system:
transports oxygen and food molecules to every cell in the body
transports pharynx cells to every muscle cell
includes the brain, spinal cord, and nerves
is important for protecting the body
Our saliva contains an enzyme called ______ that breaks down starch and turns it into glucose.
Fat
Amylase
DNA
Alveoli
We breathe in _____ and breathe out ______.
Carbon Dioxide, Oxygen
Water, Oxygen
Oxygen, Carbon Dioxide
Farts, Burps
During the chemical reaction Cellular Respiration, oxygen and glucose react to create a molecule of pure energy called ____.
DNA
ATP
Fat
Starch
In a healthy person, all food molecules are broken down and absorbed into the bloodstream EXCEPT:
Fiber and Water
Glucose and Starch
Fat and Water
Starch and Protein
What do the alveoli and villi have in common?
They're both types of muscles
They're both structures that serve as the bridge to the bloodstream
They're both in the respiratory system
They're both types of organs that protect the body from physical damage
