Each question in this quiz is timed.
What is the word equation for photosynthesis?
carbon dioxide + water => glucose + oxygen
glucose + oxygen => water + carbon dioxide
glucose + carbon dioxide => water + oxygen
water + oxygen => glucose + carbon dioxide
What solution do we use to identify starch in leaves?
Iodine
Chlorine
Fluorine
The blue-black iodine turns brown in the presence of starch, showing that photosynthesis has occurred.
What is a limiting factor?
A factor that puts a cap on the rate of photosynthesis
A factor that stops photosynthesis occurring
A factor that increases the rate of photosynthesis
What are 5 limiting factors of photosynthesis?
A lack of light
Too hot
Too cold
A high carbon dioxide concentration in the surroundings
A low carbon dioxide concentration in the surroundings
A lot of water in the soil
Not much water in the soil
Glucose produced by photosynthesis can be...
converted into insoluble starch for storage
used for respiration
converted into fats and oils for storage
used to produce cellulose
used to produce proteins
used to produce ions
A measurement is repeatable if the investigation is repeated by a different person or using different equipment and the same results are obtained
An experiment is reproducible if the original experimenter repeats the investigation with the same method and equipment and the same results are obtained.
Data is valid if it answers the question asked or finds what was needed to be found.
The validity and reproduciblity of data increases as more results are taken.
