What is the correct equation for cellular respiration?

6O 2 + C 6 H 12 O 6 + Energy → 6CO2 + 6H 2 O

6O 2 + C 6 H 12 O 6 → 6CO 2 + 6H 2 O + Energy

6CO 2 + 6H 2 O → 6O 2 + C 6 H 12 O 6 + Energy

6CO 2 + 6H 2 O + Energy → 6O 2 + C 6 H 12 O 6

The diagram below shows products of cellular processes ﬂowing to organisms that can use them. What is Product 2 according to the diagram?

oxygen produced by photosynthesis

carbon dioxide produced by respiration

carbon dioxide produced by photosynthesis

What is the correct equation for photosynthesis?

water + carbon dioxide → oxygen + glucose

water + oxygen → carbon dioxide + glucose

water + carbon dioxide → oxygen + light

water + glucose → carbon dioxide + energy

The equation below shows a process that occurs in all green plants. 6CO2 + 6H2O + energy → C6H12O6 + 6O2 Which statement about this process is true and supported by the equation?

The process follows both the laws of conservation of mass and of energy because the number of atoms stays the same, and the energy is present in the molecules of the products.

The process follows only the law of conservation of mass and not the law of conservation of energy because the number of atoms stays the same, but energy is used up.

The process does not follow either the law of conservation of mass or the law of conservation of energy because the number of atoms increases and the amount of energy is reduced.

Plant and animal cells get energy from sugar. This process is called cellular respiration. Which of the following suggests this process obeys the law of conservation of mass?

If the mass of the reactants increases, then the mass of the products increases an equal amount.

The mass of the reactants is less than the mass of the products.

The mass of the reactants is greater than the mass of the products.

If the mass of the reactants increases, then the mass of the products decreases an equal amount.

During photosynthesis, molecules inside chloroplasts in plant cells absorb energy from the Sun. Which statement best describes how photosynthesis follows the law of conservation of energy?

Light energy from the Sun is converted into chemical energy in plant cells.

Light energy from the Sun is converted into kinetic energy in plant cells.

Chemical energy from the Sun is converted into light energy in plant cells.

Chemical energy from the Sun is converted into thermal energy in plant cells.

Which statement best describes how photosynthesis follows the law of conservation of mass?

The number of oxygen atoms in the reactants used by this process equals the total number of oxygen atoms in the products.

The volume of water used by this process is equal to the volume of water released from plant leaves at night.

The amount of carbon dioxide gas absorbed by one plant is equal to the amount of carbon dioxide gas exhaled from one human.

The cells in the plant absorb the same amount of energy from the Sun that humans need when burning sugars during digestion.

Plants play a crucial role in the carbon cycle because they

allow carbon to enter an ecosystem through photosynthesis.

do not release carbon dioxide during cellular respiration.

have special bacteria that live in their root systems.

are chemically converted into fossil fuels when burned.

Which model is a correct pathway for carbon in the carbon cycle?

atmosphere → plants → animals → ground

ground → animals → plants → atmosphere

plants → ground → animals → atmosphere

animals → plants → atmosphere → ground

Which of the following statements is most accurate?

A finite amount of carbon exists on Earth, and it moves through living and nonliving materials through the carbon cycle.

The amount of carbon in the universe cycles, gradually increasing as it moves up the food chain, and decreasing until the next phase of the cycle.

Carbon flows through the food chain as animals eat it, then decomposes and is permanently removed from the system when the food chain is complete.

Carbon enters Earth's atmosphere when animals exhale, then moves into space where its amount steadily increases, and finally moves back into Earth's atmosphere to be used again.

Carbon is stored in leaves in various forms, such as sugar. When leaves decay, they lose mass. Which of the following sentences explains what happens to the carbon that is stored in leaves when they decay?

The carbon is converted into carbon dioxide and released into the atmosphere.

The carbon is destroyed as the leaves decompose.

The carbon is converted into nitrogen by bacteria in the soil.

Which statement about cellular respiration in plants and animals is true?

Both plants and animals release energy from glucose in cellular respiration.

Both plants and animals need water to start cellular respiration.

Both plants and animals take in carbon dioxide to break down glucose in cellular respiration.

Both plants and animals need chlorophyll to make glucose before using it in cellular respiration.

Which statement about cellular respiration is true?

Carbon dioxide is a waste product of cellular respiration in both plants and animals.

Oxygen is a waste product of cellular respiration in both plants and animals.

Oxygen is a waste product of cellular respiration in plants, but not in animals.

Carbon dioxide is a waste product of cellular respiration in plants, but not in animals.

Which of the following is the correct equation for cellular respiration?

glucose + oxygen → carbon dioxide + water + energy

energy + water → carbon dioxide + water + glucose

glucose + carbon dioxide → oxygen + water + energy

oxygen + water → carbon dioxide + energy + glucose

A student is drawing a model of the carbon cycle. Which caption should he include to explain how herbivores contribute to the carbon cycle from the food they eat?

Herbivores eat plants, producing carbon dioxide during cellular respiration that is released into the atmosphere.

Herbivores eat plants, producing carbon dioxide during photosynthesis that is released into the atmosphere.

Herbivores use carbon dioxide from the atmosphere to produce oxygen during cellular respiration.

Herbivores use oxygen from the atmosphere to produce carbon dioxide during photosynthesis.

Which statement about cellular respiration is true?

Carbon dioxide is a waste product of cellular respiration in both plants and animals.

Oxygen is a waste product of cellular respiration in both plants and animals.

Oxygen is a waste product of cellular respiration in plants, but not in animals.

Carbon dioxide is a waste product of cellular respiration in plants, but not in animals.

Quiz Photosynthesis Cellular Respiration Carbon Cycle

Quiz

•

Science

•

8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS1-6, MS-LS2-3, HS-LS1-7

+8

Standards-aligned

Ray Turner

Used 7+ times

FREE Resource

31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The reactants of photosynthesis are

sugar and water

sugar and oxygen

carbon dioxide and water

carbon dioxide and oxygen

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which statement about photosynthesis is correct?

Plants get the energy they need for photosynthesis from water.

Plants get the energy they need for photosynthesis from soil.

Plants get the energy they need for photosynthesis from sunlight.

Plants do not require energy to perform photosynthesis.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the products of photosynthesis?

carbon dioxide and water

carbon dioxide and oxygen

glucose and oxygen

glucose and water

Tags

NGSS.MS-LS1-6

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is the correct equation for PHOTOSYNTHESIS?

6CO₂ + 6H₂O → 6O₂ + C₆H₁₂O₆

6CO₂ + C₆H₁₂O₆ + 6H₂O → O₂

6O₂ +6H₂O → 6CO₂ +C₆H₁₂O₆

C₆H₁₂O₆ + 6O₂ → 6H₂O + 6CO₂

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which gas is removed from the atmosphere during photosynthesis?

hydrogen

oxygen

nitrogen

carbon dioxide

Tags

NGSS.MS-LS1-6

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What gas is released by plants during photosynthesis?

nitrogen

carbon dioxide

oxygen

hydrogen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of photosynthesis?

make glucose

make ATP

make light

release carbon dioxide

Tags

NGSS.MS-LS1-6

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Quiz Photosynthesis Cellular Respiration Carbon Cycle

31 questions

The reactants of photosynthesis are

Which statement about photosynthesis is correct?

What are the products of photosynthesis?

Which of the following is the correct equation for PHOTOSYNTHESIS?

Which gas is removed from the atmosphere during photosynthesis?

What gas is released by plants during photosynthesis?

What is the purpose of photosynthesis?

What is one of the reactants of cellular respiration?

What are the reactants in the equation for cellular respiration?

What is the correct equation for cellular respiration?

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