Download Use for Nov. 20,12 Unit 2 Cells Test Study Guide

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Unit 3 Cells Test STUDY GUIDE!!
1. Circle the diagram which shows a plant cell? What type of specialized cell is this?
2. Why do some root cells have root hairs?
3. Which of the following structures must be present in all types of cells for osmosis
to take place?
cell (sap) vacuole, cell wall, cell membrane, chloroplast, cytoplasm
4. A frog’s skin is permeable to oxygen and carbon dioxide. When a frog is swimming
in pond water, in which directions will oxygen and carbon dioxide diffuse?
5. The diagram below shows four specialized cells. Which of the following features is
not common to all of these cells? Cell membrane, cytoplasm, diploid number of
chromosomes, nucleus
6. The diagram shows a plant cell. Label the structures. Circle the structures that are
found in plant cells but not in animal cells?
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7. Which of the following structures are adapted for supporting a plant? Phloem
tissues, root hair cells, stomata, xylem vessels
8. Which describes the structure and function of a red blood cell?
9. A red blood cell is placed in a concentrated sugar solution. Describe what happens
and why? Draw a picture if necessary.
10. The diagram shows some liver cells as they appear under the microscope. How
many cell walls can be seen?
11. Write the level of organization for each of the following:
a. kidney
b. liver
c. neuron
d. testis
12. Which diagram shows one organ only? Label the diagram with the levels of
organization.
13. On a
a.
b.
c.
d.
dry, sunny day, how does water vapor move through the stomata of a leaf?
into the leaf by diffusion
into the leaf by osmosis
out of the leaf by diffusion
out of the leaf by osmosis
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14. The diagram shows an experiment using a potato.
Which shows the result of the experiment after 24 hours?
15. What are the levels of organization of: the wall of a villus; the small intestine?
16. The heart, arteries, and veins are an example of what level of organization?
17. Define osmosis.
18. The diagram shows a student’s drawing of guard cells. Which label line is
incorrect?
19. The diagram shows a structure found in the human body. This is an example of
what level of organization?
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20. Water is a good solvent. Explain what this means.
21. The diagram shows two solutions that are separated by a partially permeable
membrane. In which direction will most water molecules move in relation to their
concentration gradient? Draw an arrow showing the direction of movement.
22. Define Diffusion.
23. Substances can enter and leave cells by either diffusion or by osmosis. State two
ways in which osmosis differs from diffusion.
24. Use only words from the list to complete the statements about a plant cell.
Air
cellulose
chloroplasts
membrane
wall
mitochondria
nucleus
starch
vacuole
cell sap
A plant cell has a thick outer layer called the cell _____. This is made of _____. The
cytoplasm of a plant cell contains many _____ that are used in the process of
photosynthesis. The large permanent _____ is full of _____ and this helps to
maintain the shape of the cell.
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