WorksheetsIntroduction to Chem
Total questions: 18
Worksheet time: 9mins
Do scientists classify vitamins and minerals as food?
yes
no
sometimes
What is the same about carbohydrates, proteins and fats?
They all have C, H and O atoms
They are all made of the same number & types of atom
They all form long chains of molecules
What is true about the breakdown of starch?
Organisms break it down into Zinc
Starch breakdown is not a chemical reaction
Organisms break it down into carbohydrate subunits (glucose)
What types of food molecules can be stored as fat? (after a chemical reaction)
carbohydrates
fats
proteins
all 3!!!
How does Jackson use food molecules to grow taller?
He metabolize's the food he eats to build molecules to make new cells
He uses the energy from food, the rest leaves as waste
When he stores food molecules as fat
Jackson uses unparalleled mastery of the mystic arts and doesn't need food
What is true about photosynthesis?
Plants use CO2 + H20 to produce glucose and O2
Plants use glucose + O2 to produce CO2 + H20
Plants use O2 + CO2 to produce H20
When does Mr. T store fat molecules in his body?
when he eats more calories than his body metabolizes
when he doesn't eat the same amount of fat, protein, and carbohydrates
He has the body of Greek god and doesn't have any fat
How do plants get their food?
by taking in food from the soil using their roots
photosynthesis
cellular respiration
What do plants need?
soil only
light only
water and light only
soil, water, and light
Why do plants like to grow in soil?
Because they need soil!
They use their roots to take in water and non-food nutrients from the soil
They use their roots to take in food from the soil
What type(s) of energy are involved in photosynthesis?
light energy only
chemical energy only
light and chemical energy
no energy
In an ecosystem, light energy ...
is transferred to the ecosystem
is coming into the system
does not exist
In an ecosystem, chemical energy...
comes into the system
does not exist
is available for use by other organisms
In an ecosystem, thermal and kinetic energy...
comes into the system
is transferred to the ecosystem
does not exist
How many atoms of Carbon does a glucose molecule have?
six
twelve
eighteen
zero
Plants perform the following chemical reactions...
photosynthesis
cellular respiration
photosynthesis and cellular respiration
none
What brings oxygen and food molecules to every cell in the body?
digestive system
circulatory system
nervous system
skeletal system
Thermal and light energy are given off when food burns. Where does the thermal and light energy come from?
the lighter or match
oxygen being burned
Chemical potential energy
