Question

circle the best answer for each question.

1. which of the following is not a characteristic of all living things?

a. ability to reproduce
b. made of one or more cells
c. can move
d. responds to stimuli

1. the cell theory states all of the following except:

a. all living things are made of cells
b. cells are the basic units of structure and function in living things
c. all cells have a nucleus
d. all cells come from pre - existing cells

1. which microscope is best for viewing the surface of a specimen in 3d?

a. light microscope
b. transmission electron microscope
c. scanning electron microscope
d. dissecting microscope

1. which structure controls the movement of substances into and out of the cell?

a. cytoplasm
b. mitochondria
c. cell membrane
d. lysosome

Explanation:

1. Option C: Not all living things can move. For example, plants are living but do not move in the way animals do. All living things can reproduce (A), are made of cells (B), and respond to stimuli (D).
2. Option C: The cell theory states that all living things are made of cells (A), cells are the basic units of structure and function (B), and all cells come from pre - existing cells (D). Prokaryotic cells (e.g., bacteria) do not have a nucleus.
3. Option C: A scanning electron microscope (SEM) is used to view the surface of a specimen in 3D. A light microscope (A) gives 2D images of thin specimens. A transmission electron microscope (B) is for internal structures of thin specimens. A dissecting microscope (D) is for low - power 3D viewing of larger specimens but not at the level of SEM for surface details.
4. Option C: The cell membrane controls the movement of substances into and out of the cell. Cytoplasm (A) is the jelly - like substance inside the cell. Mitochondria (B) are the powerhouses of the cell. Lysosomes (D) contain digestive enzymes.

Answer:

1. C. Can move
2. C. All cells have a nucleus
3. C. Scanning electron microscope
4. C. Cell membrane