What solution do we use to identify starch in leaves?
Answer
Iodine
Chlorine
Fluorine
Question 3
Question
The blue-black iodine turns brown in the presence of starch, showing that photosynthesis has occurred.
Answer
True
False
Question 4
Question
What is a limiting factor?
Answer
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
Question 5
Question
What are 5 limiting factors of photosynthesis?
Answer
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
Question 6
Question
Glucose produced by photosynthesis can be...
Answer
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
Question 7
Question
A measurement is repeatable if the investigation is repeated by a different person or using different equipment and the same results are obtained
Answer
True
False
Question 8
Question
An experiment is reproducible if the original experimenter repeats the investigation with the same method and equipment and the same results are obtained.
Answer
True
False
Question 9
Question
Data is valid if it answers the question asked or finds what was needed to be found.
Answer
True
False
Question 10
Question
The validity and reproduciblity of data increases as more results are taken.