Metabolism Week 3 - 7th Grade

The body takes in molecules by _________.

• Eating and breathing
• Drinking and sleeping
• Exercising and reading
• Swimming and singing

Tags

NGSS.MS-LS1-7

• Some of these molecules travel to the cells of the body.

• Through the lymphatic system
• By diffusion
• Via the nervous system
• Through the bloodstream

Tags

NGSS.MS-LS1-3

• A functioning human body has molecules from food (_____ , ______) and molecules from (________) in its cells.

• Fructose, lipids, and nitrogen
• Proteins, minerals, and hydrogen
• Glucose, amino acids, and oxygen
• Water, vitamins, and carbon dioxide

Tags

NGSS.MS-LS1-2

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• Cells can only use molecules that are _____________________.

• any size of molecules

• larger than the cell to be used

• small enough to enter a cell.

• gaseous molecules

• The ______ system brings in oxygen molecules from the air. These oxygen molecules are already small enough to fit into cells.

• respiratory
• circulatory
• digestive
• nervous

• The _____ system brings in food and breaks it down into smaller molecules, such as glucose and amino acids, that can fit into cells.

• Excretory
• Respiratory
• Circulatory
• Digestive

• The _____ system transports glucose, oxygen, and amino acid molecules to every cell in the body.

• nervous system
• digestive system
• circulatory system
• respiratory system

• Scientists use _____ to understand the processes that happen inside the human body because they are difficult to observe directly due to being too small or hidden from view.

• models

• telescopes
• binoculars
• magnifying glasses

Tags

NGSS.MS-LS1-2

• In a functioning human body, ________ work together to deliver glucose, oxygen, and amino acid molecules to the cells in the body.

• Body systems
• Delivering only glucose
• Cells working independently
• Body systems not interacting

Tags

NGSS.MS-LS1-3

• Systems can work together to form a larger more complex ______.

• design
• structure
• system
• organization

Tags

NGSS.MS-LS1-3

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