WorksheetsIC3 Practice
Total questions: 15
Worksheet time: 8mins
Where does the thermal energy come from when food is burnt?
The lighter being used to light the food on fire
The chemical energy stored in the food
From the oxygen needed for the food to burn
burning food
What is the same about proteins, carbohydrates, and fats?
They have carbon, hydrogen, and oxygen
all made of the same number and types of atoms
same arrangement and types of atoms
are long chains of molecules
When starch is broken down it is converted to...
Proteins
fats
carbohydrates
vitamins
Humans store fat in their body when they eat more calories than their body requires.
True
False
How do students grow taller?
Students grow taller when they use food molecules they eat to build large molecules that make new cells
Students grow taller when they use the food molecules they eat to make up new cells without changing the food molecules
Students grow taller when they use the energy from the food molecules, but all of the molecules leave the body as waste
Students grow taller when they store food molecules as fat
Why do plants usually grow in soil?
Plants use their roots to take in food from the soil
Plants use their roots to take in non-food nutrients and water from the soil.
Plants use their roots to take in oxygen
Plants use their roots to take in carbon dioxide from the soil.
Carbon dioxide and oxygen are important resources in ecosystems and are
stored in animals in the ecosystem
lost due to the activities of decomposers
released by the process of photosynthesis
recycled through the activity of living and nonliving systems
organisms contain compounds such as protein, starches, and fats. The chemical bonds in these compounds can be a source of
amino acids
energy
simple sugars
enzymes
What would be the result of removing carbon dioxide from the environment on plants?
nothing would change
Increase sugar production
Increase oxygen production
Decrease sugar production until it eventually stops
What is the name of the process in plants that creates food for plants?
Cellular respiration
photosynthesis
glycolosis
Fermentation
What are the reactants (Things reacting) in photosynthesis?
Water and Carbon Dioxide
Water and glucose
Carbon Dioxide and Oxygen
Sunlight and oxygen
What type of energy is needed for photosynthesis to occur?
Heat energy
Kintetic Energy
light Energy
chemical energy
Vitamins are considered food
true
false
the equation for cellular respiration is the _____________ of photosynthesis
same
similar
inverse
None of the above
organic compounds are used as the building blocks of
water, DNA, and starches
Water, proteins, and oxygen
proteins, DNA, and carbon dioxide
proteins, starches, and fats
