Question

1. according to the passage, what is the main idea of the cell theory?

a. cells are large enough to be seen without a microscope.
b. all living things are made of one or more cells, cells are the basic unit of life, and all cells come from other cells.
c. cells are only found in plants and animals, but not in bacteria.
d. cells are made of organelles, which are like tiny walls.

1. what did robert hooke observe under a microscope in 1665?

a. bacteria swimming in pond water.
b. blood cells moving through the body
c. the nucleus inside of a cell.
d. tiny boxes in cork that reminded him of monks rooms.

1. what is the function of the plasma membrane in a cell?

a. to control what goes in and out of the cell and hold all the parts inside.
b. to produce energy for the cell.
c. to help the cell move around.
d. to store the cells dna.

1. according to the passage, what is the jelly - like substance inside a cell called?

a. plasma membrane
b. organelle
c. cytoplasm
d. nucleus

1. what did antony van leeuwenhoek call the bacteria and protozoa he discovered?

a. micrographia
b. organelles
c. animalcules
d. cells

Explanation:

1. Cell theory states that all living things are made of one or more cells, cells are the basic unit of life, and all cells come from other cells.
2. Robert Hooke observed tiny boxes in cork that reminded him of monks' rooms in 1665.
3. The plasma membrane controls what goes in and out of the cell and holds all the parts inside.
4. The jelly - like substance inside a cell is called cytoplasm.
5. Antony van Leeuwenhoek called the bacteria and protozoa he discovered "animalcules".

Answer:

1. B. All living things are made of one or more cells, cells are the basic unit of life, and all cells come from other cells.
2. D. Tiny boxes in cork that reminded him of monks' rooms.
3. A. To control what goes in and out of the cell and hold all the parts inside.
4. C. Cytoplasm
5. C. Animalcules