WorksheetsUnit 1 - Benchmark Review (In-class)
Total questions: 15
Worksheet time: 9mins
Name two ways a scientist could change their experiment to make her results more reliable.
Increase the sample size and repeat the experiment multiple times.
Use a different method and change the hypothesis.
Ignore outliers and use a smaller sample size.
Conduct the experiment in a different location and use different materials.
Homeostasis: All living things must maintain ________ to stay alive.
maintaining a stable internal environment
a constant external temperature
a high energy output
a rapid growth rate
Metabolism: sum of all chemical reactions = ________.
work together
break down
build up
transform energy
Which life processes: Converts energy in food into a usable form (ATP)
Respiration
Nutrition
Synthesis
Regulation
Excretion: Removing of ________ produced by metabolic activities.
wastes
nutrients
proteins
vitamins
Oxygen (O2) and water (H2O) are examples of what type of molecule?
inorganic
organic
monosaccharide
amino acids
Carbohydrates have building blocks called ______ and provide ______ energy and structure.
monosaccharide and quick
amino acids and slow
nucleotides and moderate
fatty acids and long-lasting
Proteins have building blocks called ______.
amino acids
nucleotides
lipids
carbohydrates
When the shape of an enzyme is changed, it is called ______.
denatured
saturated
hydrated
oxidized
During strenuous exercise, body temperature increases. The body responds to the increase in temperature by sweating, which helps to reduce the body temperature. Which is demonstrated in this situation?
excretion
metabolism
homeostasis
synthesis
What is a key characteristic of reliable research?
It is based on anecdotal evidence.
It can be replicated by other researchers.
It relies on a single source of data.
It is conducted without a hypothesis.
How does temperature generally affect the activity of a biological catalyst?
Increases activity indefinitely
Decreases activity indefinitely
Increases activity up to a certain point, then decreases
Has no effect on activity
What is the primary role of enzymes in the digestive system?
To break down food into smaller molecules
To transport nutrients throughout the body
To store energy for later use
To regulate body temperature
What are the building blocks of nucleic acids?
Amino acids
Nucleotides
Lipids
Carbohydrates
