3.2.1 Cells and Homeostasis (cells)

Match it! Select the correct answer from the pull down...Good luck!

Oxygen is produced by the ___ and carbon dioxide is produced by the ___.

Mature human red blood cells lose their nucleus during their development. Which of these are, therefore, ABSENT from red blood cells?

Which cell structure contains molecules that direct cell activities?

Yeast is a fungus made up of eukaryotic cells. When sugar is available, yeast will convert it into energy. What part of the yeast cell completes this energy conversion?

The natural cycling of oxygen between organisms and their environment is most directly accomplished through which of the following pairs of processes?

Students separated 16 Elodea plants into four equal groups. Each group was exposed to a different number of hours of light. The amount of gas released was measured. Which structure would produce the gas?

Some cells, such as human nerve and muscle cells, contain more mitochondria than other cells. Why do some cells have more mitochondria than others?

Which of the following process occurs in chloroplasts?