WorksheetsUnit 2 Assessment: From Atoms to Living Things
Total questions: 20
Worksheet time: 3600secs
Which of the following is NOT a molecule?
Which of the following represents a compound?
Ca
Co
CO
Cu
Anthony is reading the information that came with a new medicine he has to take. One of the ingredients is lactose (C₁₂H₂₂O₁₁). What can Anthony tell about lactose based on its formula?
Some people may be allergic to lactose.
Lactose has a melting point of about 203°C.
Lactose is a key ingredient in many medicines.
A lactose molecule contains 11 atoms of oxygen.
Ammonia has the formula NH₃. Select the model that best represents ammonia.
A food manufacturer decides to stop using preservatives in its tomato sauce. How will the tomato sauce most likely change as a result?
It will cost more to make.
It will have fewer vitamins.
It will give people headaches.
It will spoil faster.
Over the last 200 years, scientists have increased their knowledge of how to use chemicals to create medicines. What is one result of this?
Humans now tend to live longer than in the past.
Humans are no longer at risk of serious diseases.
Medicines that use chemicals no longer have side effects.
Medicines that use chemicals are now less powerful.
Which of the following is a BENEFIT of synthetic materials?
Synthetically produced materials are toxic.
Synthetically produced materials are easier to get.
Synthetically produced materials are more expensive to consumers.
Synthetically produced materials may have unknown effects on the environment.
According to cell theory, all cells come from:
water
soil
chemical reactions
pre-existing cells
Which of the following is made of cells?
a rock
a snowflake
a raindrop
a leaf
Cell theory has three parts: The cell is the basic unit of life in all living things, all cells come from pre-existing cells, and ______________.
nonliving things are composed of cells
the cell was discovered by Robert Hooke
all organisms are made of one or more cells
all cells are microscopic in size
Both plant and animal cells have
cell walls
chloroplasts
a nucleus
cilia
Which of the following is likely to be found in a cell from a maple leaf but not in an animal muscle cell?
cell wall
mitochondria
cell mebrane
cytoplasm
Which part of a city has a function similar to the mitochondria in a cell?
City hall
City walls
Storage tanks
Power plant
Which part of a city has a function similar to the nucleus in a cell?
City hall
City walls
Storage tanks
Power plant
Which part of a city has a function similar to the chloroplast in a plant cell?
City hall
Food processing plant
Storage tanks
Power plant
In the diagram, the plant captures light energy from the sun and uses it to convert carbon dioxide and water into food. The process of producing food in plants is known as:
transpiration
respiration
glycolysis
photosynthesis
Refer to the diagram to answer the question: What are the products of photosynthesis?
sunlight, carbon dioxide, and water
glucose, water and carbon dioxide
glucose and oxygen
water and glucose
Photosynthesis uses sunlight to produce sugar. What kind of energy transformation is this?
light energy to chemical energy
mechanical energy to thermal energy
chemical energy to light energy
light energy to mechanical energy
Use the diagram to answer the question: In which organelles does cellular respiration take place?
vacuole
mitochondrion
nucleus
lysosome
Which of the following are reactants (inputs) for cellular respiration?
Glucose and oxygen
Carbon dioxide and glucose
Carbon dioxide and water
Carbon dioxide and energy
