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WorksheetsStage 9 Biology
Total questions: 21
Worksheet time: 25mins
(a) are units of heredity made of a substance called DNA.
Criminal cases are solved by obtaining and identifying the DNA profile of the accused person from the scene of crime. What is this DNA profile, obtained from cells of the saliva or blood, called?
(a)
Name the method of separation used in the preparation of a person's DNA profile.
Sex cells are called (a) .
What is the term used to describe the structure of DNA?
Name the process in which male and female reproductive cells fuse together.
The nucleus of a resting cell contains threads of chromatin that condense to form chromosomes. When does the chromosome of a cell become visible?
What phenomenon does the theory of natural selection explain?
Explain the theory of acquired characteristics with an example.
Foods synthesized in the process of Photosynthesis by plants is stored as
Starch
Protein
Vitamins
Fats
Where in a plant cell does photosynthesis take place
Palisade cells
Chlorophyll
Chloroplasts
Vacuole
What is the purpose of photosynthesis?
To release energy
To create glucose
To grow
To get oxygen for respiration
Which of these is the correct equation for photosynthesis?
6O2 + C6H12O6 --> 6CO2 + 6H2O
6O2 + 6CO2 --> C6H12O6 + 6H2O
6CO2 + 12H2O --> C6H12O6 + 6H2O + 6O2
6CO2 + 6H2O --> O2 + C6H12O6
What are the products of photosynthesis?
Oxygen and Energy
Carbon Dioxide and Glucose
Glucose and Oxygen
Oxygen and Water
What protects Stomata and helps it in opening and closing?
Guard Cells
Leaf
Stem
Carbon Dioxide
Identify what is shown in the picture
chlorophyll
stomata
carbon dioxide
veins
Energy stored in all the fossil fuels is made during the process of
Fossilization
Oxidation
Photosynthesis
De-starching
A Punnett square is a (a) that allows you to easily determine the expected (b) of different (c) of two parents.
State what (a), (b) and (c) are.
Define transpiration.
