Energy for Life Prep for Unit Test

The organelle where photosynthesis takes place is the

• mitochondria

• chloroplast

• nucleus

• cell membrane

The energy-rich molecule made and stored in plants is

• lipid

• protein

• glucose

• nucleic acid

The picture shows a process that happens in plants. Why is the sun in the picture?

• Energy for photosynthesis comes from the sun. 

• Energy for respiration comes directly from the sun.

• The plant uses oxygen to send solar energy to the sun. 

During winter, there is a high concentration of carbon dioxide in Connecticut's air. One reason for this is that leaves are not on the trees, so photosynthesis is reduced.

• True

• False

The diagram shows a cell organelle involved in cellular respiration. The arrows most likely show

• carbon dioxide coming out of a mitochondrion carrying out respiration

• ATP coming out of a chloroplast carrying out photosynthesis

• oxygen coming out of a mitochondrion carrying out respiration

• DNA leaving the nucelus

Which process happens in the human body to make energy for life?

• photosynthesis

• cellular respiration

During summer in Connecticut, plant growth leads to

• higher atmospheric concentration of carbon dioxide

• higher atmospheric concentration of oxygen

• higher atmospheric concentration of carbon monoxide

Cellular respiration happens in the cell cytoplasm and the

• chloroplasts

• mitochondria

• nucleus

ATP is called a cell's "energy currency" because

• glucose is made of ATP

• ATP allow one organelle to be exchanged for another between cells

• most of the energy for metabolism is supplied by ATP

Which organism pictured uses photosynthesis to create oxygen and glucose?

• the human

• the dog

• the tree

• the sun