Living Things/Week 33 CCA Exam Study Guide (KEY)
Vocabulary to know:
Stimulus
Response
Asexual Reproduction
Sexual Reproduction
Structure
Function
Heterotrophs
Autotrophs
Eukaryotes
Prokaryotes
Unicelluar
Homeostasis
Cilia
Flagella
Nucleus
Cytoplasm
DNA
Cell Theory
Needs of Living Things Characteristics of
Living Things
1. What is the main difference between a eukaryotic cell and a prokaryotic cell?
Eukaryotic cells have their DNA inside the nucleus of the cell.
Prokaryotic cells have no nucleus. The DNA just floats in the cytoplasm.
2. How is a bacteria cell different from plant cells?
Bacteria cells are simple, have no nucleus (they are prokaryotes), and are very small.
Plant cells have complex organelles, have a nucleus (they are eukaryotes) and are larger.
3. What is the source of energy for most autotrophs? The sun
4. Draw and label major parts of a Eukaryotic Cell (nucleus, cell membrane, DNA)
5. Draw and label major parts of a Prokaryotic Cell (DNA, flagella, cilia, cytoplasm)
6. Know Cell Theory
All living things are made of cells. Cells are the basic unit of structure & function. Cells
come from other cells.
7. Know the Needs of all Living Things
Energy – a source of energy (food)
Water – to drink or live in
Shelter/Space – a place to get what they need (their environment)
Stable Internal Conditions (Homeostasis)
8. Know the six Characteristics of all living Things
Cells – are made of cells
Chemicals – similar chemicals CHO
Energy – use energy
Grow & Develop –
Respond to stimuli in their environment
Reproduce – make more of themselves (asexual or sexual)
9. Know the basic difference between Asexual and Sexual reproduction.
Asexual reproduction – each cell only has ½ of a DNA strand. They need DNA from two
different cells to make offspring.
Sexual reproduction – each cell can reproduce just by copying the same DNA and
making new cells.
10. Write 3 sentences showing a stimulus resulting in a response. Circle the stimuli and
underline the responses.
Answers will vary. Examples
a. A dog jumped into the water when the ball splashed in.
b. A fish swam away when the shark came by.
c. The school bus flashing lights came on and Susan stopped her car to wait for the kids
to get off.