WorksheetsQuiz 2.2 - Energy and Life 11° 2020
Total questions: 7
Worksheet time: 25mins
What describes the conversion of ADP to ATP?
An input of energy as both phosphate groups detach
A release of energy as one phosphate group detaches
A release of energy as a third phosphate group is attached
An input of energy to attach a third phosphate group
Stuart is listing the changes to matter and energy that occur during the process of photosynthesis. Which of these examples should he include in his list?
Nuclear changes that convert hydrogen and oxygen into carbon.
Chemical changes that convert carbohydrates into smaller molecules.
Changes that convert light energy into chemical energy stored in carbohydrates.
Changes that convert chemical energy into heat and light.
How do plants synthesize high-energy carbohydrates?
Plants use carbon dioxide and energy from the sun to perform photosynthesis.
Plants use chemical compounds to perform photosynthesis.
Plants take compounds made by other living organisms.
Plants use a waxy cuticle.
Chloe is developing a model of photosynthesis. The first part of the model is shown below. Which would be the MOST useful next step for Chloe to develop the photosynthesis model further?
Extend the lines for sunlight so that they pass through the autotroph.
Represent a chemical reaction in the autotroph that produces high-energy carbohydrates.
Represent a chemical reaction in the autotroph that produces high-energy proteins.
Draw a circle to represent a heterotroph, and draw a line to connect it to the autotroph.
A mushroom gains its energy by decomposing the tissues of dead organisms. Should mushrooms be classified as autotrophs, heterotrophs, in both groups, or in neither group, and for what reason?
They are autotrophs because they do not eat their food, as animals do.
They are autotrophs because decomposition is very similar to photosynthesis.
They are heterotrophs because their food is made by other organisms.
They are both autotrophs and heterotrophs, because they may grow in sunlight or darkness.
How do heterotrophs and autotrophs differ in the way they obtain energy? (2 points)
Explain how a rechargeable battery can be used as a model of ADP and ATP. (3 points)
