7A 11/22

The space exploration program has hired you for advice on how to keep astronauts healthy in the space shuttle. How can the program’s doctors make sure the astronauts’ bodies work well enough to exercise in space?

• The doctors could make sure that the astronauts’ bodies can make enough energy by getting enough sleep.

• The doctors could make sure that the astronauts’ bodies can make enough energy by getting enough sleep.

• The doctors could make sure the astronauts’ cells are getting the molecules they need from food and air.

• The doctors could make sure the astronauts’ cells are getting different types of molecules from food.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-7

Doctors tested a patient and found that his cells contained normal levels of oxygen and glucose molecules, and no starch molecules. Will this patient be able to exercise normally?

•  Yes, the glucose and oxygen molecules can react together to release energy for the body to function.

• No, his digestive system is not breaking down food molecules; his cells need starch molecules to react with glucose, which releases energy.

• No, his body systems are working, but he needs to eat different food; in cells, only amino acids can react with oxygen to release energy

• Yes, as long as his cells have glucose, they don’t need anything else to release energy for the body to function.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-7

Some problems with the digestive system make it very difficult for the body to digest enough food. Why would it be harder to exercise when you have a digestion problem like this?

• You would not be able to sleep, which would make you too tired to exercise

• Your cells would have molecules from air, but would not get enough molecules from food.

• You would need to breathe in a lot more air because your body would have fewer molecules from food.

• You would not get any of the molecules your cells need to exercise

A student thinks that the human body only works properly when cells are getting molecules from food and molecules from air. Is the student correct?

• Yes, the body only works when cells get molecules from food and molecules from air.

• No, the body only works when cells are getting molecules from different types of food.

• No, the body only works when the lungs get molecules from air, and the stomach gets molecules from food.

• No, the body works as long as cells are making all the molecules they need.

Tags

NGSS.MS-LS1-3

Stella’s respiratory system is not working well. Why is this a problem for her ability to exercise?

• Her respiratory system will not be able to break down molecules from air into oxygen.

• Her cells will not work well when they have low levels of oxygen

• Her digestive system will have to work twice as hard to get the same amount of energy from glucose molecules

• Her cells will not work because molecules from air will be too large for her body to use.

Jamal ate a meal of rice before seeing his doctor. Rice is made of mostly starch molecules. Jamal has been feeling tired a lot, so his doctor gave him a test that found that Jamal’s cells contained normal levels of oxygen and low levels of glucose.

Does this explain why Jamal has been feeling tired?

• Yes, Jamal’s respiratory system is working, but his digestive system is not turning the oxygen into glucose.

• Yes, Jamal’s respiratory system is working, but his digestive system is not breaking down starch molecules into glucose for his cells

• Yes, Jamal’s digestive system is working, but his respiratory system has too much oxygen, so his body stopped making energy

• No, something else must be wrong with Jamal because his cells have all the molecules they need.

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-7

Which of the following are TRUE about cellular respiration?

• it is a chemical reaction

• it releases oxygen and glucose

• it release water, carbon dioxide and energy

• it takes place in the mitochondria of the cell

Tags

NGSS.MS-LS2-3

This image shows the ________ of a cell

Tags

NGSS.MS-LS1-2

Which of the following BEST summarizes blood doping?

• the process of converting glucose into energy

• the process of inhaling more oxygen per breath

• the process of taking out and replacing red bloods cells to increase oxygen

• the process of draining all the blood out of a person

Which of the following are necessary for a healthy human?

• amino acids

• glucose

• oxygen

• sugar

Tags

NGSS.HS-LS1-5

NGSS.HS-LS1-6

NGSS.HS-LS1-7