Scientific Inquiry
A scientist observes a sudden increase in algae in a lake. What is the best first step in the scientific process?
Research similar cases
Which organelle is responsible for directing all cell activities, including cell reproduction?
Nucleus
If petal color was codominant, what would a cross between a red flower and a white flower look like?
Red and white petals
The primary purpose of red blood cells is to transport ______ through the body
Oxygen
What is the main difference between eukaryotic and prokaryotic cells?
Eukaryotic cells have a nucleus
When testing how light intensity affects photosynthesis, which variable should be kept constant?
Carbon dioxide levels
Which organelle packages and transports proteins?
Golgi body/apparatus
What is an example of a polygenic trait?
Height
Skin color
Which type of muscle is voluntary?
Skeletal
The cell membrane is considered to be ___________ permeable, meaning it only allows certain materials through
Selectively
What is the main purpose of a control group in an experiment?
To validate experimental results
Which organelle is responsible for making proteins?
Ribosome
A codon changes from UUU to UUC, but the amino acid does not change. What type of mutation is this?
Silent
What cell type is responsible for transmitting electrical impulses through the body?
Neurons
What two properties of water combine to allow water to move up a thin tube (capillary action)
Cohesion and adhesion
When testing the effect of sunlight on photosynthetic rate of plants, what is the independent variable?
Sunlight
Which organelle converts light energy from the sun into chemical energy in the form of glucose?
Chloroplast
What type of genetic cross can result in a 9:3:3:1 ratio?
Dihybrid cross
What cell type is responsible for protecting your body?
Skin
During which phase of meiosis does crossing over occur?
Prophase 1
Which variable are you directly measuring in an experiment?
Dependent variable
What is one organelle that plant cells have that animal cells do not?
Cell wall
Chloroplast
Central vacuole
If flower petal color is controlled by incomplete dominance, a red flower crossing with a white flower would produce what phenotype?
Pink
What is the scientific name for fat tissue?
Adipose
A researcher introduces a mutation in DNA. What central dogma process is immediately affected by this mutation?
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