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Which structures are found in every living cell?

A Cell Membrane and Cytoplasm

The student can determine which mouthwash is most effective in destroying bacteria by observing the

Amount of bacterial growth around each disk

A cell has a defect that results in the loss of its ability to regulate the passage of water, food, and wastes into and out of the cell. In which of the following cell structures is this defect most likely to be located?

Cell membrane

What are the basic structural units of living organisms?

Cells

Four discs, each soaked in a different antibiotic, were placed on the surface of a culture plate that had been inoculated with E. coli bacteria. The diagram pictured shows the culture plate after it had been incubated for 48 hours. Which antibiotic was most effective in inhibiting the growth of E. coli?

Chloramphenicol

In order for a food vacuole within an amoeba to carry on intracellular digestion effectively, the vacuole must

Contain hydrolytic enzymes

. Microbiologists were able to grow viruses in a test tube containing

Crushed human cells

Which organelle is correctly matched with the cell process it performs?

Cytoskeleton- Maintains shape, support, and movement

Which cell organelle is composed of a series of channels throughout the cytoplasm that functions in the production and transport of molecules?

Endoplasmic Reticulum

The presence of large numbers of mitochondria in the tubule cells of nephrons suggests that the transport of materials into and out of tubule cells requires

Energy

A single prokaryotic cell can divide several times an hour. Few eukaryotic cells can divide as quickly. Which of the following statements best explains this difference?

Eukaryotic cells are more structurally complex than prokaryotic cells.

A scientist observed a cell and noticed that it had several nuclei and a cell wall made of chitin instead of cellulose. What type of cell was it?

Fungal cell

Cytoplasm Which life activity is illustrated by the diagrams of the same cell shown

Growth

The rough endoplasmic reticulum is a cell structure that consists of folded membranes that contain ribosomes. What is the advantage of the folded membranes?

Increases surface area in order to produce more proteins

. In which organelles are enzymes for intracellular digestion stored?

Lysosomes

Microscope examination of a cell reveals the presence of a cell membrane but no cell wall. Which additional structures would normally be present within this cell?

Lysosomes

Which organelle is primarily concerned with the conversion of potential energy of organic compounds into suitable form for immediate use by the cell?

Mitochondria

A lab technician needs to determine whether cells in a test tube are prokaryotic or eukaryotic. The technician has several dyes she could use to stain the cells. Four of the dyes are described in the table below.

Nile blue

When comparing an animal cell to the human body, we can make analogous comparisons. Your brain is the control center of your body. What is the control center of the cell?

Nucleus

Which cell organelle would not be found in bacteria?

Nucleus

A virus consists of:

RNA or DNA and a protein coat

Viral activity is represented in the diagram shown. Invading the host cell enables the virus to

Reproduce

An adaptive advantage that some types of bacteria have is their

Resistance to certain antibiotics

The early study of cells by Schleiden and Schwann contribute to the formation of the cell theory. What is the most probable reason that these early biologists never viewed the cell organelles known as ribosomes?

Ribosome are too small to be seen with early microscopes

Which structures are found in both prokaryotic and eukaryotic cells?

Ribosomes

. How do viruses reproduce?

Using a host cell's molecules

When a virus enters a human cell, it may

reproduce