During photosynthesis, plants take in carbon dioxide, water, and energy from the sun and produce carbohydrates and oxygen. Which of the following statements best explains how plants follow the law of conservation of mass during photosynthesis?

The amount of each element in the reactants equals the amount of each element in the products.

The number of carbon dioxide molecules taken in exactly equals the number of carbohydrate molecules produced.

The plant uses the carbon dioxide gas, liquid water, and energy to produce a solid carbohydrate.

The plant's mass does not increase or decrease as a result of photosynthesis.

Which of the following observations demonstrates that living systems follow the law of conservation of mass?

The total mass of a dead organism equals the total mass of matter released to the environment by decomposition.

Most plants and animals begin their life cycle with a smaller mass and gain mass during development.

The total mass of all organisms in an ecosystem remains the same over time.

Living animals must consume food with a mass much greater than the mass of their body over their lifetime.

Pedro is learning about energy transfer within an ecosystem. Which of the following, regarding the diagram, supports the law of conservation of energy?

The total amount of energy remains the same within the system.

The total amount of energy decreases within the system.

The total amount of matter remains the same within the system.

The total amount of energy increase within the system.

During the process of living and growing, which of the following occurs in all living things?

Energy changes from one form to another

Energy is both created and destroyed

Each level gets only about 10of the energy from the previous level. If living systems follow the law of conservation of energy, where does the remaining 90of the energy go?

It is converted into heat and energy for all life functions.

It is used by decomposers during decomposition.

It is converted into matter during digestion.

It is used by organisms in the lower trophic level.

Altitude training is done by many athletes. Athletes travel to areas of high altitudes where there is less oxygen in the air. The body adapts to the stress of less oxygen by getting more efficient at transporting oxygen by red blood cells and using the oxygen needed for cellular respiration. What role of oxygen are athletes who train in altitude trying to enhance?

enhancement of the immune system

After food is consumed, chemical nutrients are absorbed into the blood. These nutrients then enter mitochondria. Which reaction must occur next for the cell to carry on other activities?

Glucose and oxygen combine to produce high-energy molecules.

Glucose and water combine to produce high-energy molecules.

Oxygen, light, and glucose combine to produce high-energy molecules

Oxygen, carbon dioxide, and glucose combine to produce high-energy molecules.

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.

Plants and animals both have cellular respiration. How are they the same?

Both plants and animals need glucose to release energy 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.

What happens after a plant cell performs cellular respiration?

the cell releases stored energy

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

Which of the following is the correct equation for photosynthesis?

carbon dioxide + water + energy → oxygen + glucose

energy + water → carbon dioxide + water + glucose

glucose + carbon dioxide → oxygen + water + energy

glucose + oxygen → carbon dioxide + water + energy

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.

Amaiah need an image to represent the carbon cycle for a presentation in Mrs. Avila-Reyes' science class. Based on the models, which statement is true?

Model D would be the best for the carbon cycle because the carbon cycle is a flow of matter which can take different paths bringing carbon back to the same place.

Model A would be the best model for the carbon cycle because carbon depletes over time as it is used by different organisms.

Model B would be the best model for the carbon cycle because carbon will follow the same path when it is transferred from one place to another.

Model C would be the best model for the carbon cycle because the carbon cycle has a definite beginning and end where carbon eventually cannot be reused.

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.

Which statement best describes how organisms demonstrate the transformation of energy?

Light energy from the Sun is converted into chemical energy in a wildflower, which is converted into mechanical energy in a deer that eats the wildflower.

Light energy from the Sun is converted into mechanical energy in a rabbit, which is converted into thermal energy and dispersed into the atmosphere.

Light energy from the Sun is converted into mechanical energy in a deer, which produces waste that is absorbed by a wildflower to produce chemical energy.

Light energy from the Sun is converted into chemical energy in a mushroom, which is converted into thermal energy as the mushroom breaks down dead matter.

Which statement about the carbon cycle is most true?

Carbon changes form, but the total amount on Earth remains the same.

Energy is destroyed when organic matter decays.

The total mass of carbon on Earth is always increasing.

Carbon is lost from the cycle when it enters the atmosphere.

If Brooklyn is going out of town, then what should she do to make sure that her plants stay alive while she is gone?

place a lamp over the terrarium and add a lot of water

add lizards and insects to the terrarium

add more sand to the bottom of the terrarium

place the terrarium in a dark spot and add a lot of water

Conservation of Mass and Energy

Quiz

•

Science

•

Practice Problem

•

Hard

•

NGSS

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

+7

Standards-aligned

Kristy Zalud

Used 17+ times

FREE Resource

38 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best summarizes photosynthesis?

A chemical reaction involving nitrogen and other atmospheric gases

An adaptation of plants that allows them to add nutrients to the soil

A process by which plants produce sugar using the energy of sunlight

An exchange of gases between animals and the air or water of their habitat

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As a by-product of photosynthesis, plants produce oxygen. Nadia and Bailey set up four beakers with different conditions of plants and sunlight. Which beaker would produce the LEAST amount of oxygen?

beaker A

beaker B

beaker C

beaker D

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

William fills a test tube with water and a green plant called elodea. When the plant is exposed to sunlight, it begins to produce bubble. Which of the following is the MOST likely conclusion for the identity of the gas in the bubbles?

Carbon dioxide

Oxygen

Nitrogen

Hydrogen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The energy flow through living systems begins with sunlight and photosynthesis. An incomplete diagram of the process of photosynthesis is provided. What is the missing component that correctly replaces the quetion mark to complete the diagram?

soil nutrients

water

glucose

oxygen

Tags

NGSS.MS-LS1-6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Plants are able to engage in photosynthesis because they produce a chemical that can absorb sunlight to synthesize glucose. What is this chemical?

oxygen

chlorophyll

carbon dioxide

water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Plants are know as autotrophs,creating the food source they need for energy. The process by which plants produce sugar using the energy of sunlight is known as which of the following reactions?

precipitation

respiration

photosynthesis

transpiration

Tags

NGSS.MS-LS1-6

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cassy and Ariani perform an investigation in which four beakers of water are set up with different conditions of plants and sunlight. The water in all four beakers began with the same amount of dissolved carbon dioxide. Which beaker will most likely have the lowest concentration of carbon dioxide?

beaker A

beaker B

beaker C

beaker D

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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Conservation of Mass and Energy

38 questions

Which of the following best summarizes photosynthesis?

As a by-product of photosynthesis, plants produce oxygen. Nadia and Bailey set up four beakers with different conditions of plants and sunlight. Which beaker would produce the LEAST amount of oxygen?

William fills a test tube with water and a green plant called elodea. When the plant is exposed to sunlight, it begins to produce bubble. Which of the following is the MOST likely conclusion for the identity of the gas in the bubbles?

The energy flow through living systems begins with sunlight and photosynthesis. An incomplete diagram of the process of photosynthesis is provided. What is the missing component that correctly replaces the quetion mark to complete the diagram?

Plants are able to engage in photosynthesis because they produce a chemical that can absorb sunlight to synthesize glucose. What is this chemical?

Plants are know as autotrophs,creating the food source they need for energy. The process by which plants produce sugar using the energy of sunlight is known as which of the following reactions?

Cassy and Ariani perform an investigation in which four beakers of water are set up with different conditions of plants and sunlight. The water in all four beakers began with the same amount of dissolved carbon dioxide. Which beaker will most likely have the lowest concentration of carbon dioxide?

What is the missing componet that correctly replaces the question mark to complete the diagram?

Jose takes long, deep breaths while running. Which gas does Jose require from the air?

Which process represented in the table is a process through which all living things add carbon to the atmosphere?

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