Focus On Life Science: California Grade 7

Lesson 1: Cells and Life

Standards Check

1.
__________ is the change in apparent size produced by a microscope. 7.a
A)Eyepiece
B)Magnification
C)Objective
D)Membrane
2.
To view extremely small organisms, which might you use? 7.a
A)an eyepiece lens
B)a concave lens
C)an electron microscope
D)a magnifying glass
3.
Which of these statements is supported by the cell theory? 1.a
A)No organisms are composed of just one cell.
B)Only certain cells in your body divide to make new cells.
C)Each cell in your body comes from a cell that has divided.
D)All organisms have multiple cells.
4.
Genetic material is found in which organic compound? 1.a
A)carbohydrates
B)sodium bicarbonate
C)proteins
D)nucleic acid
5.
__________ is probably the most important inorganic compound for organisms. 1.a
A)Water
B)Sodium bicarbonate
C)A carbohydrate
D)A lipid
6.
What is the smallest unit of life in all living things called? 1.a
A)a cell
B)bacteria
C)a molecule
D)an atom
7.
What type of instrument is used to look at cells? 1.a
A)telescope
B)glasses
C)microscope
D)binoculars
Grade 7
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