Quiz about Unit 4 and 5 Test Science

Question 1

The energy that animals need for their life functions is released when their cells carry out which of the following functions?

Accepted Answer

Breaking down carbon-based molecules

Answer

Absorbing water from the environment

Answer

Moving molecules across membranes

Answer

Eliminating waste products

Question 2

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

Accepted Answer

oxygen

Answer

nitrogen

Answer

carbon dioxide

Answer

hydrogen

Question 3

The table shown here provides information about the processes that result in the transfer of matter within and between organisms and the environment. Which process represented in the table is a process through which all living things add carbon to the atmosphere?

Accepted Answer

decay

Answer

photosynthesis

Answer

respiration

Answer

eating plants

Question 4

Which gas do animals add to the atmosphere when they breathe?

Accepted Answer

carbon dioxide

Answer

nitrogen

Answer

oxygen

Answer

hydrogen

Question 5

The movement of carbon in the environment is diagrammed here. The transfer of carbon illustrated in the diagram is the result of which of the following processes?

Accepted Answer

photosynthesis

Answer

evaporation

Answer

decay

Answer

respiration

Question 6

Carbon is an organic element found in all life forms. Which of the following occurs through the process of breaking down carbon-based molecules?

Accepted Answer

Energy needed for life functions is released

Answer

Water molecules are transferred through the body.

Answer

Elimination of waste products occurs.

Answer

Absorbing of oxygen through pore occurs.

Question 7

The movement of carbon in the environment is diagrammed here.The transfer of carbon illustrated in the diagram is the result of which of the following processes?

Accepted Answer

respiration

Answer

precipitation

Answer

decay

Answer

photosynthesis

Question 8

Every organism needs energy to survive. A process in which oxygen is combined with the breakdown of sugar (glucose) molecules, releasing energy and giving off carbon dioxide and water, is known as which of the following reactions?

Accepted Answer

cellular respiration

Answer

transpiration

Answer

carbon fixation

Answer

photosynthesis

Question 9

The table shown here provides information about the processes that result in the transfer of content within and between organisms and the environment.Which process represented in the table removes carbon from the atmosphere?

Accepted Answer

photosynthesis

Answer

respiration

Answer

eating plants

Answer

decay

Question 10

Which of the following best summarizes photosynthesis?

Accepted Answer

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

Answer

A chemical reaction involving nitrogen and other atmospheric gases

Answer

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

Answer

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

Question 11

As a by-product of photosynthesis, plants produce oxygen. Four beakers of water are set up with different conditions of plants and sunlight. A diagram is provided. Given the circumstance of the investigation, which of the following beakers would likely produce the least amount of oxygen?

Accepted Answer

beaker d

Answer

beaker a

Answer

beaker b

Answer

beaker c

Question 12

A test tube is filled with water and a green plant called elodeaWhen the plant is exposed to sunlight, it begins to produce bubbles. A diagram is provided.Which of the following is the most likely conclusion for the identity of the gas in the bubbles?

Accepted Answer

oxygen

Answer

carbon dioxide

Answer

nitrogen

Answer

hydrogen

Question 13

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 question mark to complete the diagram?

Accepted Answer

oxygen

Answer

soil nutrients

Answer

water

Answer

glucose

Question 14

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

Accepted Answer

chlorophyll

Answer

oxygen

Answer

carbon dioxide

Answer

water

Question 15

Plants are known 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?

Accepted Answer

photosynthesis

Answer

precipitation

Answer

respiration

Answer

transpiration

Question 16

Li and Mohammed perform an investigation in which four beakers of water are set up with different conditions of plants and sunlight. A diagram is provided.The water in all four beakers began with the same amount of dissolved carbon dioxide. The most reasonable prediction is that, at the end of the investigation, the beaker with the lowest concentration of carbon dioxide will be which one?

Accepted Answer

beaker a

Answer

beaker b

Answer

beaker c

Answer

beaker d

Question 17

Mrs. Martin is conducting an investigation with her science class. She has the class record various observations of an elodea plant in a fish tank. Shown here is a sample of student observation.Which data best connects an observation to the explanation of that observation in terms of photosynthesis?

Accepted Answer

The green color is due to chlorophyll, needed to absorb sunlight

Answer

The leaves are used by the plant to take oxygen from the water.

Answer

The larger plants have absorbed more sugar from the water.

Answer

The bubbles are the carbon dioxide produced by the plant.

Question 18

An incomplete diagram of the process of photosynthesis is provided.What is the missing component that correctly replaces the question mark to complete the diagram?

Accepted Answer

water

Answer

soil nutrients

Answer

thermal energy

Answer

glucose

Question 19

Chlorophyll is a chemical found in plants that contributes to which of the following regarding the process of photosynthesis?

Accepted Answer

Absorption of sunlight to synthesize glucose

Answer

Release of oxygen in the atmosphere

Answer

Movement of water throughout the plant

Answer

Uptake of sugar to be used as plant food

Question 20

After food is consumed, chemical nutrients are absorbed into the blood. The blood then carries these nutrients to the body's cells where the nutrients 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 21

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 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 22

Many athletes use altitude training to improve their performance. They travel to areas of high altitude where there is less oxygen in the air. The body adapts to the stress of less oxygen by becoming more efficient at transporting and using oxygen. What are athletes who train in high altitudes most likely trying to enhance?

Accepted Answer

energy production in the mitochondria

Answer

building of muscle tissue

Answer

pH balance of red blood cells

Answer

enhancement of the nervous system

Unit 4 and 5 Test Science

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