7th GRADE LIFE SCIENCE
MID-TERM EXAM STUDY GUIDE
1. Know the rules of the science lab and how to be safe while doing investigations.
2. What is the difference between an observation and an inference? How can you use observations to
make inferences?
3. Know the difference between qualitative and quantitative observations. Be able to identify each type.
4. What is classifying? Know how to classify.
5. What is predicting? Be able to interpret a graph and make predictions using the data on the graph.
6. What is modeling? Know the two types of models.
7. Know the order of the scientific method. Know what to do during each step. Be able to identify an
example of each step from a sample investigation. Know the terms hypothesis and data.
8. What are independent, dependent, and control (constant) variables? Be able to identify examples of
each.
9. What is measuring? What is length, mass, volume, and temperature? Know the common SI units for
length, mass, volume, and temperature. What unit is best for measuring different lengths (for
example: distance between cities, length of a tree, diameter of dime)? What kind of data is collected
from these types of measurements? Be familiar with the common SI prefixes.
10. Know how to create a bar graph or line graph from a data chart. Be able to interpret data charts and
graphs. Know why a bar graph is used. Know why a line graph is used.
11. What elements are found in all living organisms (NCHOPS CaFe)?
12. What the four organic compounds?
13. Know examples and functions of the carbohydrates, lipids, proteins, and nucleic acids.
14. What organisms are prokaryotic cells? What organisms are made of eukaryotic cells?
15. Which cell has a nucleus? Which cell does not have a nucleus?
16. Which cell has membrane covered organelles? Which cell does not have membrane covered
organelles?
17. What are the similarities between the prokaryotic and the eukaryotic cell?
18. What determines the structures of living things?
19. What are the functions of an organism?
20. What must a cell do in order to stay alive?
21. How are organisms and cell similar?
22. Who was Robert Hooke and why is he important?
23. Who was Anton van Leeuwenhoek and why is he important?
24. What does the cell theory state?
25. What scientists contributed to the cell theory? How did they learn from each other?
26. Why did the cell theory take so long to create?
27. Why was the microscope important to the cell theory?
28. Why is an electron microscope better than a light microscope?
29. How has technology affected human knowledge about cells over the past 300 years?
30. How are the cell wall and the cell membrane alike? How are they different?
31. Why is the nucleus referred to as the brain of the cell?
32. Why is chromatin important to the nucleus?
33. Where are ribosomes made?
34. What organelles are suspended in the cytoplasm?
35. Why is the mitochondria called the powerhouse of the cell?
36. What does the Endoplasmic Reticulum help the ribosomes do?
37. How is the Golgi apparatus like a warehouse?
38. Why is the chloroplast so important to a plant cell?
39. What is the function of the lysosome?
40. How are plant and animal cells alike? How are plant and animal cells different?
41. What is a specialized cell? What are some examples of specialized cells and the functions of those
cells?
42. Explain the level of organization in a multicellular organism. Be able to draw a diagram representing
the levels of organization.
43. How is the cell membrane selectively permeable?
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How was the plastic bag like the cell membrane during the investigation?
What is passive transport?
What are the three types of passive transport?
How are oxygen and carbon dioxide transported into and out the cell?
How is sugar transported into and out of the cell?
How is water transported into and out of the cell?
What is active transport?
How are sodium, potassium, and calcium transported into and out of the cell?
What is the difference between passive and active transport?
What is an autotroph? What is a heterotroph?
What is photosynthesis?
What happens during stage one and stage two of photosynthesis?
What does the chlorophyll do during photosynthesis?
What are the reactants and products of photosynthesis?
What is the word equation for photosynthesis?
How does photosynthesis benefit heterotrophs?
What is cellular respiration?
What are reactants and products of cellular respiration?
What is the word equation for cellular respiration?
What happens during stage one and stage two of cellular respiration?
Why is the cycle created by photosynthesis and cellular respiration important?
What is fermentation?
What is the difference between aerobic respiration and anaerobic respiration?
What is an example of aerobic respiration?
What is an example of anaerobic respiration?
What are the six characteristics of living things?
What is taxonomy?
What two classification levels make up the scientific names for living organisms? What is the proper
format for writing a scientific name?
What happens to the number of shared characteristics the closer you get to the species level?
What are the three domains of living organisms? Describe each domain.
What kingdoms make up Domain Eukarya? Domain Bacteria? Domain Archaea?
How are organisms classified into domains and kingdoms?
What is the difference between autotrophs and heterotrophs?
What are some examples of eubacteria, archaebacteria, protists, fungi, plants, and animals?
What are the functions of the roots, stems, and leaves?
What are the parts and function of each flower part?
Which flower parts is the female reproductive structure?
Which flower parts is the male reproductive structure?
What are the stages of a plant’s life cycle?
What happens during the sporophyte stage? Gametophyte stage?
What are the reproductive parts of a gymnosperm? Angiosperm?
How are angiosperms and gymnosperms alike and different?
How does pollination occur in an angiosperm and a gymnosperm?
How does fertilization occur in an angiosperm and a gymnosperm?
How are seeds dispersed in a gymnosperm and an angiosperm?