Embed Size (px)
Citation preview
Chapter 4 Cell Processes and Energy
Chapter Preview Questions
1. All living things are made of
a. tissues.
b. muscles.
c. cells.
d. chemicals.
Chapter 4 Cell Processes and Energy
Chapter Preview Questions
1. All living things are made of
a. tissues.
b. muscles.
c. cells.
d. chemicals.
Chapter 4 Cell Processes and Energy
Chapter Preview Questions
2. Scientists observe the details of cells
a. with their bare eyes.
b. through microscopes.
c. through telescopes.
d. in petri dishes.
Chapter 4 Cell Processes and Energy
Chapter Preview Questions
2. Scientists observe the details of cells
a. with their bare eyes.
b. through microscopes.
c. through telescopes.
d. in petri dishes.
Chapter 4 Cell Processes and Energy
Chapter Preview Questions
3. Unlike animal cells, many plant cells contain
a. chloroplasts.
b. mitochondria.
c. cytoplasm.
d. DNA.
Chapter 4 Cell Processes and Energy
Chapter Preview Questions
3. Unlike animal cells, many plant cells contain
a. chloroplasts.
b. mitochondria.
c. cytoplasm.
d. DNA.
Chapter 4 Cell Processes and Energy
Chapter Preview Questions
4. Genetic information in plant and animal cells is in the cell’s
a. chloroplasts.
b. membrane.
c. nucleus.
d. walls.
Chapter 4 Cell Processes and Energy
Chapter Preview Questions
4. Genetic information in plant and animal cells is in the cell’s
a. chloroplasts.
b. membrane.
c. nucleus.
d. walls.
Chapter 4 Cell Processes and Energy
Hummingbirds feed on the nectar produced by flowers. Nectar is a sweet liquid composed largely of carbohydrates. What does nectar provide for the cells of the hummingbird?
How do cells obtain the energy they need to carry out all their functions?
Chapter 4 Cell Processes and Energy
Greek Word Origins
Prefix Meaning Example Word
auto- self autotroph An organism that makes food for itself
Chapter 4 Cell Processes and Energy
Prefix Meaning Example Word
heterotroph An organism that depends on other organisms for food
hetero- other, different
Greek Word Origins
Chapter 4 Cell Processes and Energy
Apply It!
The Greek word trophe means “food.” What two key terms in the table come from this Greek word? How does the meaning of each of these words put two Greek words together?
Chapter 4 Cell Processes and Energy
How does the sun supply living things with the energy they need?What happens during the process of photosynthesis?
Section 1: Photosynthesis
Chapter 4 Cell Processes and Energy
Sources of Energy
Nearly all living things obtain energy either directly or indirectly from the energy of sunlight captured during photosynthesis.
Chapter 4 Cell Processes and Energy
The Two Stages of PhotosynthesisDuring photosynthesis, plants and some other organisms use energy from the sun to convert carbon dioxide and water into oxygen and sugars.Stage 1: Capturing the energy in sunlightStage 2: Converting the energy into food
