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Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the cell membrane stores minerals and wastes. B.The nucleus controls the activities of the cell, while the cell membrane controls what enters and exits the cell. C.The nucleus provides support, while the cell membrane converts carbon dioxide and water into food. D.The nucleus stores food and water, while the cell membrane stores chemicals used by the cell for photosynthesis.

Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

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Page 1: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

Science Starter2.13&17.15

1. How do the functions of the nucleus differ from those of the cell membrane?

A.The nucleus converts food energy while the cell membrane stores minerals and wastes.

B.The nucleus controls the activities of the cell, while the cell membrane controls what enters and exits the cell.

C.The nucleus provides support, while the cell membrane converts carbon dioxide and water into food.

D.The nucleus stores food and water, while the cell membrane stores chemicals used by the cell for photosynthesis.

Page 2: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

2. Chloroplasts are organelles that are found in plant cells. Some plant tissue contain cell with large numbers of chloroplasts, while other tissue contains few chloroplasts.

Which type of plant tissue contains cells with many chloroplasts and why?

A. StemB. RootC. LeafD. Flower

Page 3: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the
Page 4: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

*Plants are autotrophs - they make their own food.

*They use a process of photosynthesis to convert energy from the sun in the form of EMR into glucose.

*Glucose stores the chemical energy until needed by the plant.

*Photosynthesis takes place in the chloroplasts found in plant cells.

Page 5: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

*2 main parts surrounded by membranes

*Grana - stacks of Thylakoids “coins”

*Stroma - aqueous space between the grana

Page 6: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

*Converts sunlight energy into food for the plant.

*Takes place in the chloroplasts

*Has a light (grana) and dark (stroma) reaction

*Formula for photosynthesis 6CO2 + 6H2O -> C6H12O6 + 6O2

Page 7: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

Now what uses the glucose made during photosynthesis?

Page 8: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

*the process that releases energy by breaking down glucose and other food molecules in the presence of oxygen to make ATP

*Cellular respiration happens in the mitochondria.

Page 9: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

*Because cellular respiration occurs when oxygen is present, we call this aerobic respiration.

Page 10: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

*All living organisms need energy to grow, move, and reproduce.

*We get that energy from sugars like glucose.

*We change energy stored in food to make ATP (a different form of energy) our bodies can use

Page 11: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

How does this relate to ATP?

Page 12: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the
Page 13: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

*Some cells, like muscles, are more active & have more mitochondria because they need to make more energy

Page 14: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

*C6H12O6 + 6O2 6CO2 + 6H2O + energy

*Glucose + oxygen carbon dioxide + water and energy (ATP)

*Hey Look! It’s the opposite of photosynthesis!

Page 15: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

*Both animals (heterotrophs) and plants (autotrophs) do cellular respiration.

*If oxygen is not present then a process called fermentation occurs.

Page 16: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the

When you exercise hard, and have trouble breathing you aren’t getting enough oxygen. When there’s no oxygen, lactic acid is formed. Lactic acid is what causes your muscles to hurt or cramp after exercise.

Page 17: Science Starter 2.13&17.15 1. How do the functions of the nucleus differ from those of the cell membrane? A.The nucleus converts food energy while the