Review for 6th Grade Science Final – Life Science
Please make sure you give yourself enough time to study. Make an appointment to see me if you
have any questions. Good Luck!!!
1. Name all the parts of the microscope and describe the function of each part.
2. Why does a specimen need to be very thin?
3. Why did we need to use iodine on some specimen?
4. What is the difference between a dry mount and a wet mount slide? How exactly do you make
them?
5. Define each of the following terms and tell where they are located, if appropriate:
Organelle –
Cell wall –
Cell membrane –
Nucleus –
Nuclear envelope –
Chromatin –
Nucleolus –
Cytoplasm –
Mitochondria –
Endoplasmic Reticulum –
Ribosomes –
Golgi Bodies –
Chloroplasts –
Vacuole –
Lysosomes –
6. What are all the differences between plant and animal cells?
7. What are microinvertebrates?
8. Explain three things you learned while looking at the organisms in the pond water.
9. What does selectively permeable or semi-permeable mean?
10. What is diffusion and give an example.
11. What is osmosis and give an example.
12. Why do materials usually want to move from a higher concentration to a lower concentration?
13. Explain the three shapes of a red blood cell and why they might look like that.
14. What is passive transport and give two examples.
15. What is active transport and give two examples.
16. Explain how transport proteins work.
17. Explain how transport by engulfing works.
18. Be able to look at a picture and tell what kind of cell process is going on.
19. Who was the priest that experimented on pea plants?
20. What is heredity?
21. What is a trait?
22. What are alleles?
23. What is the difference between dominant and recessive alleles?
24. What does filial mean?
25. Explain “P Generation,” “F1 Generation,” and “F2 Generation.”
26. How would you show that a pea plant had two dominant alleles for round peas? What about one
dominant allele for round peas and one recessive allele for wrinkled peas? What about two recessive
alleles for wrinkled peas? (p.79 has info on dominance)
27. What is the difference between being homozygous and heterozygous for a specific trait? Give an
example. How does that relate to purebred and hybrid?
28. What is the difference between phenotype and genotype? Give an example.
29. What is a Punnett square?
30. Free ear lobes (F) are dominant to the recessive attached ear lobes (f). What are all the possibilities
of offspring with the following parents: Mom is heterozygous for free ear lobes and dad has attached
ear lobes. Use a Punnett square and tell all the different phenotypes, genotypes, and percentage
probabilities.
31. If a person has free ear lobes, can you tell what their genotype is by looking at them? What about
attached ear lobes?
32. If Justine has no widow’s peak (w) (which is recessive) and both her parents have widow’s peaks
(W) (which is dominant), could Justine have been switched at birth? Explain.
33. A dimple (D) is dominant to having no dimple (d). My son, Quinn, has dimples. What is his
genotype(s)? My daughter, Maia, does not have dimples. What is her genotype(s)?
34. What are the phenotypes for the following genotypes? (Use previous questions for information on
what the letters represent.)
Ff
FF
ff
Dd
DD
dd
ww
WW
Ww
35. Make sure you know how to use punnett squares and how to do problems similar to the spongebob
worksheet.