Biology 1A Test #1 Study Guide
Name ___________________________
1. What are the 8 characteristics that all living things share?
a. Growth
e. Responds to environment
b. Reproduction
f. _Capable of evolution
c. Needs materials for energy
g. DNA
d. Homeostasis
h. _Made of cells
2. What are the differences between a prokaryote and a eukaryote?
Size and complexity Eukaryotes are more complex and bigger.
3. Eukaryotes are large complex usually multicellular organisms.
4. Prokaryotes are small simple usually unicellular organisms.
5. What is Homeostasis? The process of maintaining a stable internal environment.
6. What is a stimulus? A signal to which something responds.___________
7. What is metabolism? _Chemical reactions to break down food for energy._____
8. Where is DNA in a eukaryote? __Nucleus__________________
9. What are the similarities between prokaryotes and eukaryotes?
The 8 characteristics of living things.
10. What are the 2 types of reproduction? EXPLAIN each of them.
Sexual – 2 parents create an offspring with a combination of their genes (more variation)
Asexual – 1 parent make an identical copy of itself (same DNA, no variation)
11. What 3 things do plant cells have that animal cells do not?
Chloroplasts, Cell Wall.
12. What are organelles? _”Tiny Organs”____ _.
13. What 3 things do all cells have in common?
a. Ribosomes
b. Chromosomes (DNA)
c. Cytoplasm
Biology 1A Test #1 Study Guide
Name ___________________________
14. What are the 8 biological levels of organization in living things from smallest to largest?
Atoms
Molecules
Organelles
Cells
Tissue
Organ
Organ system
Organism
15. What is a hypothesis? An educated guess, prediction or solution to a problem.
16. What is an inference? Drawing conclusions about information or data.
17. A controlled experiment is one in which only one variable is changed.
18. Why is it important to have a control group? The control group is used to compare your
experiment to.
19. What are the steps of the scientific method? Ask a question, Forming a hypothesis,
Designing a controlled experiment, Collecting data and results, then drawing a conclusion.
20. Biology is the study of living things.
21. Cell specialization in multicellular organisms allows cells to perform different functions.
22. Which characteristic of living things is important to the survival of a group of animals
rather than an individual member of the group? Why?
Reproduction
(students need to explain why)
23. What is the difference between a theory and a hypothesis? A theory is a well supported
hypothesis, meaning it was tested and the evidence supports it. A hypothesis is only an
educated guess which could be proven wrong.
24. If at the end of an experiment you reject your hypothesis. Explain why you should not
consider your efforts a waste of time? Because you have learn from the result and you
can make a new hypothesis.
25. What is a control group? The group that is not experimented on.
26. Why is the metric system considered easier to use than inches and feet? Because it is
based on units of 10