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B4: Quiz 1 – Answers
B4: Quiz 1 – Answers
1)
a) carbon dioxide + water –> glucose + oxygen
b) Endothermic as the reaction takes in energy from the surroundings/ takes in light energy/ the products have more energy than the reactants
c)
i) Chloroplasts
ii) Light
iii) Chlorophyll
2)
a) Respiration
b) Cellulose
c) Nitrates/ nitrate ions
d) Lipids/ fats
e)
i) Starch
ii) Does not dissolve in water
a) carbon dioxide + water –> glucose + oxygen
b) Endothermic as the reaction takes in energy from the surroundings/ takes in light energy/ the products have more energy than the reactants
c)
i) Chloroplasts
ii) Light
iii) Chlorophyll
2)
a) Respiration
b) Cellulose
c) Nitrates/ nitrate ions
d) Lipids/ fats
e)
i) Starch
ii) Does not dissolve in water
Questions
1)
a) Write the word equation for photosynthesis.
b) Is photosynthesis an endothermic or exothermic reaction? Also, give a definition for the type of reaction that it is.
c)
i) Which subcellular structure in plants undertakes photosynthesis reactions?
ii) In addition to the two reactants in the photosynthesis reaction, what is also needed for photosynthesis to take place?
iii) What substance is responsible for absorbing your answer to part cii?
2) Photosynthesis creates glucose.
a) Some of the glucose that is created by photosynthesis is used for a reaction beginning with r; what is the name of this reaction?
b) Glucose can be converted into a substance that makes the walls of plant cells strong. Name this substance.
c) What substance is glucose combined with to create amino acids?
d) Glucose is converted into substances that are stored in seeds. Name one of these substances.
e) Glucose is converted into an insoluble substance and stored in the leaves, roots and shoots.
i) Name this substance.
ii) What does insoluble mean?
1)
a) Write the word equation for photosynthesis.
b) Is photosynthesis an endothermic or exothermic reaction? Also, give a definition for the type of reaction that it is.
c)
i) Which subcellular structure in plants undertakes photosynthesis reactions?
ii) In addition to the two reactants in the photosynthesis reaction, what is also needed for photosynthesis to take place?
iii) What substance is responsible for absorbing your answer to part cii?
2) Photosynthesis creates glucose.
a) Some of the glucose that is created by photosynthesis is used for a reaction beginning with r; what is the name of this reaction?
b) Glucose can be converted into a substance that makes the walls of plant cells strong. Name this substance.
c) What substance is glucose combined with to create amino acids?
d) Glucose is converted into substances that are stored in seeds. Name one of these substances.
e) Glucose is converted into an insoluble substance and stored in the leaves, roots and shoots.
i) Name this substance.
ii) What does insoluble mean?