Quiz about Photosynthesis / Respiration / Carbon / Energy Mini Quiz

Question 1

Which structural adaptation allows plants to perform photosynthesis in shaded areas?

Accepted Answer

broad leaves

Answer

thick stems

Answer

large flowers

Answer

<p><span>thin roots</span></p>

Question 2

Elijah wants to test the effect of carbon dioxide on rates of photosynthesis in radishes. He will keep the water, carbon dioxide, fertilizer, and light provided to one group of radishes constant and compare the growth of these radishes with a second group of radishes.

What conditions should Elijah use for the second group of radishes?

Accepted Answer

He should keep the amounts of water, fertilizer, and light consistent with the first group while varying the amount of carbon dioxide.

Answer

He should keep the conditions consistent with the first group.

Answer

He should vary the amounts of light, fertilizer, and carbon dioxide while keeping the amount of water consistent with the first group.

Answer

He should vary the amounts of water and fertilizer while keeping the amounts of light and carbon dioxide consistent with the first group.

Question 3

Tony spaces 5 plants apart equally along a line, with the first plant directly in front of a window and the last plant 30 feet away from the window. He gives them equal access to air and water and then monitors the amount of gas each plant releases.

Which gas is Tony monitoring and what trend is he most likely to see in the data he collects?

Accepted Answer

He is monitoring oxygen. The amount of gas released should be highest for the plant closest to the window and lowest for the plant farthest away from the window.

Answer

He is monitoring oxygen. The amount of gas released should be highest for the plant in the middle and lowest for the plants at the ends.

Answer

He is monitoring carbon dioxide. The amount of gas released should be highest for the plant in the middle and lowest for the plants at the ends.

Answer

He is monitoring carbon dioxide. The amount of gas released should be highest for the plant closest to the window and lowest for the plant farthest away from the window.

Question 4

One living plant leaf, still attached to the plant, is placed into a cup and covered with water. A light source is placed above the cup shining into the cup of water so that the leaf receives the light. In moments, bubbles appear at the surface of the plant leaf.

Which statement explains what causes the bubbles to appear?

Accepted Answer

Photosynthesis is occurring and bubbles of oxygen gas are being released into the surrounding area.

Answer

Photosynthesis is occurring and bubbles of carbon dioxide gas are being released by the surrounding area and absorbed into the plant leaf.

Answer

Photosynthesis is occurring and bubbles of carbon dioxide gas are being released by the leaf into the surrounding area.

Answer

Photosynthesis is occurring and bubbles of air are entering the water from the area around the plant.

Question 5

Margie illustrated the process of photosynthesis, as shown below.

Which mistake did she make?

Accepted Answer

The arrow for sugar should point away from the plant.

Answer

The arrow for carbon dioxide should point away from the plant.

Answer

The arrows for carbon dioxide and sugar should point away from the plant.

Answer

The arrow for carbon dioxide should point away from the plant, and the arrow for oxygen should point toward the plant.

Question 6

Which statement about cellular respiration is true?

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 7

Cellular respiration occurs in the body 24 hours per day. During exercise, the rate of cellular respiration increases. Why does increased cellular respiration cause people to breathe faster?

Accepted Answer

More oxygen is needed to produce more energy, and more carbon dioxide waste must be removed from the body.

Answer

More water is lost from the body, and breathing hydrates the body.

Answer

More heat is generated by the body, and breathing cools the body quickly.

Answer

More nutrients are needed to produce more energy, and more oxygen must be removed from the body.

Question 8

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?

Accepted Answer

Glucose and oxygen combine to produce high-energy molecules.

Answer

Glucose and water combine to produce high-energy molecules.

Answer

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

Answer

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

Question 9

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?

Accepted Answer

energy production

Answer

building of muscle tissue

Answer

pH balance of red blood cells

Answer

enhancement of the immune system

Question 10

How does cellular respiration directly benefit animals?

Accepted Answer

by storing energy in adenosine triphosphate (ATP)

Answer

by producing glucose

Answer

by consuming oxygen

Answer

by forming carbon dioxide

Question 11

Fossil fuels are carbon-containing deposits that form deep beneath Earth's surface.

Diana wants to show carbon moving to a location to form fossil fuels. Which model most accurately shows this process?

Accepted Answer

She sprinkles breadcrumbs onto water and watches them sink.

Answer

She bubbles gas through a water sample.

Answer

She blows bubbles into the air and watches them spread.

Answer

She makes a replica of a volcano and shows magma erupting from it.

Question 12

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?

Accepted Answer

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

Answer

The carbon evaporates.

Answer

The carbon is destroyed as the leaves decompose.

Answer

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

Question 13

Isabel needs an image to represent the carbon cycle for a presentation in her science class. She has the following diagrams to choose from.

Based on the information represented in the concept models above, which statement is true?

Accepted Answer

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.

Answer

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

Answer

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.

Answer

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.

Question 14

Most of the carbon in the rocks that form Earth's mantle and crust was stored there when Earth formed. The rest of Earth's carbon is stored and exchanged in many ways.

In a model of the carbon cycle, which process does NOT contribute directly to the storage of carbon within sediment?

Accepted Answer

the formation of carbon dioxide through metabolism of carbohydrates

Answer

the deposition of organic carbon from decaying organisms

Answer

the deposition of dissolved carbon dioxide from the atmosphere

Answer

the formation of fossil fuels from terrestrial organisms under high heat and pressure

Question 15

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?

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 16

The equation below shows a process done by all green plants.

6CO₂ + 6H₂O + energy --> C₆H₁₂O₆ + 6O₂

Which statement about this process is true and supported by the equation?

Accepted Answer

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.

Answer

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.

Answer

The process follows only the law of conservation of energy and not the law of conservation of mass because energy is the same in the products, but the number of atoms increases.

Answer

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.

Question 17

Which statement about the carbon cycle is most true?

Accepted Answer

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

Answer

Energy is destroyed when organic matter decays.

Answer

The total mass of carbon on Earth is always increasing.

Answer

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

Question 18

Which of the following statements is most accurate?

Accepted Answer

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

Answer

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.

Answer

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.

Answer

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.

Question 19

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

Accepted Answer

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.

Answer

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

Answer

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.

Answer

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.

Question 20

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?

Accepted Answer

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

Answer

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

Answer

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

Answer

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

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