Gas Exchange

Which molecule is indicated by X?

• glucose

• ATP

• carbon dioxide

• protein

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Which sequence illustrates the increasing complexity of levels of organization in multicellular organisms?

• organelle → cell → tissue → organ → organ system → organism

• cell → organelle → tissue → organ → organ system → organism

• organelle → tissue → cell → organ → organ system → organism

• cell → organism → organ system → organ → tissue → organelle

Tags

NGSS.MS-LS1-3

During periods of vigorous physical activity, a person's breathing and heart rates increase. This enables the cells of the body to perform more efficiently because it helps the cells to

• remove waste products faster

• store excess glucose in muscles

• reduce the amount of ATP produced

• convert more oxygen to glucose

Tags

NGSS.HS-LS1-7

The human body has many cells that are deep inside the body. For this reason, the human body requires

• a transport system and other organs

• carbon dioxide from the air

• the synthesis of many inorganic compounds

• the breakdown of glucose by the digestive system

Tags

NGSS.MS-LS1-3

The diagram below represents a pair of guard cells changing shape, reducing the size of the stomatal opening in a leaf. This is an adaptation that benefits plants by

• increasing the flow of liquid water into leaves, which increases the rate of food and oxygen production

• regulating the flow of water vapor out of leaves, preventing excess water loss by the plant

• increasing the flow of oxygen molecules into the leaves, which increases the rate of photosynthesis

• preventing the flow of carbon dioxide into the leaves, which would reduce the rate of respiration

Tags

NGSS.MS-LS1-6

In which cell structure is energy extracted from nutrients?

• chloroplast

• ribosome

• mitochondrion

• vacuole

It may be harmful when people compete to see who can hold their breath the longest underwater. Without oxygen, brain cells

• cannot make enough ATP

• make too many enzymes

• have too few mitochondria

• have too much water

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which life process carried out by a green plant is represented in the diagram below?

• respiration

• photosynthesis

• digestion

• replication

Tags

NGSS.MS-LS1-6

The diagram below represents a cell structure involved in converting energy stored in organic molecules into a form used by animal cells. The arrows represent the movement of which substances?

• carbon dioxide and sugar

• oxygen and ATP

• ATP and carbon dioxide

• oxygen and sugar

Tags

NGSS.MS-LS1-7

Fish absorb oxygen through the gills, earthworms absorb oxygen through the skin, amebas take in oxygen through the cell membranes, and cows inhale oxygen through the nasal passages into their lungs. This statement demonstrates that living things

• rely on similar or the same processes, but accomplish them in different ways

• rely on different processes and accomplish them in different ways

• rely on different processes, but perform them in the same or related way

• have no relationship to one another, and are all independent individuals

Tags

NGSS.MS-LS4-2