Question

1. how does chemical energy become available to the cells of consumers? number the statements to show the sequence of events.

____ consumers eat food to get carbon - based molecules.
____ producers absorb energy from the sun.
____ chemical reactions release the energy stored in sugar molecules.
____ energy from sunlight is used to produce sugar molecules.

Answer:

To determine the sequence of how chemical energy becomes available to consumers' cells, we analyze each statement:

1. Producers absorb energy from the sun: Producers (like plants) start by capturing solar energy.
2. Energy from sunlight is used to produce sugar molecules: Through photosynthesis, sunlight energy is converted into chemical energy stored in sugar (glucose) molecules.
3. Chemical reactions release the energy stored in sugar molecules: Producers (and later consumers) use cellular respiration, where chemical reactions (like glycolysis, Krebs cycle, etc.) break down sugar to release stored energy.
4. Consumers eat food to get carbon - based molecules: Consumers (like animals) obtain the sugar - containing (carbon - based) molecules by consuming producers or other consumers.

So the correct numbering of the statements in sequence is:

1. Producers absorb energy from the sun
2. Energy from sunlight is used to produce sugar molecules
3. Chemical reactions release the energy stored in sugar molecules
4. Consumers eat food to get carbon - based molecules

If we consider the original blank - numbered statements (from top to bottom as first, second, third, fourth blank):
First blank: 2 (Energy from sunlight is used to produce sugar molecules)
Second blank: 4 (Consumers eat food to get carbon - based molecules)
Third blank: 1 (Producers absorb energy from the sun)
Fourth blank: 3 (Chemical reactions release the energy stored in sugar molecules)

Wait, no, let's re - order based on the flow of energy:

• Step 1: Producers absorb energy from the sun (this is the initial step of energy capture by producers).
• Step 2: Energy from sunlight is used to produce sugar molecules (photosynthesis uses solar energy to make sugar).
• Step 3: Chemical reactions release the energy stored in sugar molecules (cellular respiration in producers or consumers to release energy from sugar).
• Step 4: Consumers eat food to get carbon - based molecules (consumers obtain the sugar - containing molecules by eating).

So the correct sequence of the statements (matching the order of the blanks from top to bottom in the image) is:

First blank (topmost): 2 (Energy from sunlight is used to produce sugar molecules) – no, wait, let's list the statements with their content:

The four statements are:

1. Consumers eat food to get carbon - based molecules.
2. Producers absorb energy from the sun.
3. Producers (or later, consumers) use chemical reactions to release energy from sugar.
4. Energy from sunlight is used to produce sugar molecules.

The correct order of events is:

• Producers absorb energy from the sun (2).
• Energy from sunlight is used to produce sugar molecules (4) (photosynthesis).
• Chemical reactions release the energy stored in sugar molecules (3) (cellular respiration in producers or when consumers break down the sugar).
• Consumers eat food to get carbon - based molecules (1) (consumers get the sugar - containing food).

So the numbering of the statements in the correct sequence (from first event to last event) is:

1. Producers absorb energy from the sun (statement 2 in the list)
2. Energy from sunlight is used to produce sugar molecules (statement 4 in the list)
3. Chemical reactions release the energy stored in sugar molecules (statement 3 in the list)
4. Consumers eat food to get carbon - based molecules (statement 1 in the list)

If we map this to the blanks in the image (from top to bottom, the four blanks have statements: Consumers..., Producers..., Producers..., Energy...), wait no, the four statements in the image (from top to bottom) are:

1. Consumers eat food to get carbon - based molecules.
2. Producers absorb energy from the sun.
3. Chemical reactions release the energy stored in sugar molecules.
4. Energy from sunlight is used to produce sugar molecules.

So the correct sequence of events is:

• Producers absorb energy from the sun (second statement) – event 1.
• Energy from sunlight is used to produce sugar molecules (fourth statement) – event 2.
• Chemical reactions release the energy stored in sugar molecules (third statement) – event 3.
• Consumers eat food to get carbon - based molecules (first statement) – event 4.

So the numbers to put in the blanks (from top to bottom) are:

Top blank (Consumers...): 4

Second blank (Producers...): 1

Third blank (Chemical...): 3

Fourth blank (Energy...): 2

Wait, no, let's think of the flow:

1. Producers (plants) absorb energy from the sun (second statement) – this is the start.

1. Then, energy from sunlight is used to produce sugar molecules (fourth statement) – photosynthesis.

1. Then, chemical reactions release the energy stored in sugar molecules (third statement) – either in producers (when they respire) or in consumers after they eat.

1. Then, consumers eat food to get carbon - based molecules (first statement) – consumers get the sugar - containing food.

So the order of the statements (as per their occurrence) is:

1. Producers absorb energy from the sun (second statement)

1. Energy from sunlight is used to produce sugar molecules (fourth statement)

1. Chemical reactions release the energy stored in sugar molecules (third statement)

1. Consumers eat food to get carbon - based molecules (first statement)

So if we number the events as 1 - 4, the statements (from top to bottom in the image) are:

Top statement (Consumers...): 4 (since it's the last event)

Second statement (Producers...): 1 (first event)

Third statement (Chemical...): 3 (third event)

Fourth statement (Energy...): 2 (second event)