Sci Unit 2: RETEST

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What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water.

Front

What are the main products of photosynthesis?

Back

The main products of photosynthesis are glucose (C6H12O6) and oxygen (O2).

Front

What is the chemical equation for photosynthesis?

Back

The chemical equation for photosynthesis is: @@6CO_2 + 6H_2O ightarrow C_6H_{12}O_6 + 6O_2@@.

Front

What is the role of sunlight in photosynthesis?

Back

Sunlight provides the energy needed to convert carbon dioxide and water into glucose and oxygen during photosynthesis.

Front

What is a chemical change?

Back

A chemical change is a process that involves the transformation of one or more substances into different substances, characterized by the breaking and forming of chemical bonds.

Front

How many atoms are in one molecule of glucose (C6H12O6)?

Back

There are 24 atoms in one molecule of glucose (C6H12O6): 6 carbon (C), 12 hydrogen (H), and 6 oxygen (O) atoms.

Front

What is the significance of oxygen produced in photosynthesis?

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Oxygen produced during photosynthesis is essential for the survival of aerobic organisms, including humans, as it is used in cellular respiration.

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What is the difference between a physical change and a chemical change?

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A physical change alters the form or appearance of a substance without changing its chemical composition, while a chemical change results in the formation of new substances.

Front

What is radiant energy?

Back

Radiant energy is energy that travels in waves and can be absorbed by plants during photosynthesis, primarily in the form of sunlight.

Front

What is the role of chlorophyll in photosynthesis?

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Chlorophyll is the green pigment in plants that absorbs light energy, primarily from the sun, to drive the process of photosynthesis.