Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
BILL NYE CELLS 1- There are about _____________ trillion cells in the human body. 2- If more new cells are formed than old cells that die, your body will _____________. 3- The word membrane means _______________ _____________. 4- Humans have _______ pairs of chromosomes. 5- Seeds don’t look alive, because they are ___________ _________. When water is added, however, they grow. 6- Hemoglobin is a molecule found in red blood cells that turns _____________ when the cell is carrying oxygen. 7- _____________ cells are the only type of cells that can’t be replaced. They don’t grow back when they are injured. That is why spinal cord injuries usually cause permanent paralysis. 8- True or False Muscle cells and skin cells have different jobs, so they look different and have different shapes, but they are both considered cells. 9- True or False Organisms could never be made of just one cell because a single cell could never move, grow, respond, reproduce, and metabolize all by itself. 10- The process where water molecules move across a membrane from high concentration to low concentration is called ____________________. (Hint: think of the balloon with the vanilla inside.) BILL NYE CELLS 8- There are about _____________ trillion cells in the human body. 9- If more new cells are formed than old cells that die, your body will _____________. 10- The word membrane means _______________ _____________. 11- Humans have _______ pairs of chromosomes. 12- Seeds don’t look alive, because they are ___________ _________. When water is added, however, they grow. 13- Hemoglobin is a molecule found in red blood cells that turns _____________ when the cell is carrying oxygen. 14- _____________ cells are the only type of cells that can’t be replaced. They don’t grow back when they are injured. That is why spinal cord injuries usually cause permanent paralysis. 8- True or False Muscle cells and skin cells have different jobs, so they look different and have different shapes, but they are both considered cells. 9- True or False Organisms could never be made of just one cell because a single cell could never move, grow, respond, reproduce, and metabolize all by itself. 10- The process where water molecules move across a membrane from high concentration to low concentration is called ____________________. (Hint: think of the balloon with the vanilla inside.)