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Questions and Answers
What is the shape of the bacterial chromosome?
What is the shape of the bacterial chromosome?
- Spiral
- Rectangular
- Circular (correct)
- Linear
A bacterial cell contains a nucleus that holds its genetic material.
A bacterial cell contains a nucleus that holds its genetic material.
False (B)
What is the dense area in a bacterial cell where genetic material is concentrated?
What is the dense area in a bacterial cell where genetic material is concentrated?
nucleoid
Ribosomes in a bacterial cell are responsible for __________.
Ribosomes in a bacterial cell are responsible for __________.
Match the following components with their descriptions in a bacterial cell:
Match the following components with their descriptions in a bacterial cell:
Which of the following is NOT a component of the cytoplasm?
Which of the following is NOT a component of the cytoplasm?
The cytoplasm is composed of 80% water.
The cytoplasm is composed of 80% water.
What percentage of the cytoplasm is made up of water?
What percentage of the cytoplasm is made up of water?
The cytoplasm contains ___________ and enzymes suspended in a complex fluid mixture.
The cytoplasm contains ___________ and enzymes suspended in a complex fluid mixture.
Match the following components with their respective descriptions:
Match the following components with their respective descriptions:
What role do enzymes play in the cell membrane?
What role do enzymes play in the cell membrane?
Large molecules can easily permeate the cell membrane without assistance.
Large molecules can easily permeate the cell membrane without assistance.
What are the three types of large molecules mentioned that enzymes help to break down?
What are the three types of large molecules mentioned that enzymes help to break down?
The _______ of the enzyme enables it to function in breaking down molecules.
The _______ of the enzyme enables it to function in breaking down molecules.
Match the following terms with their corresponding descriptions:
Match the following terms with their corresponding descriptions:
What type of cells are described as prokaryotic due to the absence of a nucleus?
What type of cells are described as prokaryotic due to the absence of a nucleus?
All bacteria are multicellular organisms.
All bacteria are multicellular organisms.
Name the three major basic shapes of bacteria.
Name the three major basic shapes of bacteria.
Bacteria are described as __________ because they do not have a nucleus.
Bacteria are described as __________ because they do not have a nucleus.
Match the following bacterial shapes with their corresponding names:
Match the following bacterial shapes with their corresponding names:
What event occurs at the center of the parent bacterial cell during cell division?
What event occurs at the center of the parent bacterial cell during cell division?
Bacterial cells have a unique genetic material structure that is not identical in their daughter cells.
Bacterial cells have a unique genetic material structure that is not identical in their daughter cells.
What is produced when a parent bacterial cell divides?
What is produced when a parent bacterial cell divides?
During bacterial reproduction, the cell undergoes ________ to grow and split into daughter cells.
During bacterial reproduction, the cell undergoes ________ to grow and split into daughter cells.
Match the following terms related to bacterial cell division:
Match the following terms related to bacterial cell division:
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Study Notes
Bacterial DNA
- Bacterial DNA is contained in a single circular chromosome, often called the nucleoid.
- Bacteria are prokaryotic, which means they lack a membrane-bound nucleus.
- The DNA is not enclosed in a nuclear membrane.
Bacterial Ribosomes
- Bacterial cells contain thousands of ribosomes, which are small, discrete structures.
- Ribosomes are important for protein synthesis.
Bacterial Cytoplasm
- Bacterial cytoplasm is a complex fluid mixture containing 80% water.
- The fluid contains lipids, carbohydrates, ions, enzymes, the nucleoid, ribosomes, and inclusion granules.
- Bacteria are prokaryotes because they lack a nucleus.
Bacterial Shapes
- The three major shapes of bacteria are bacillus, coccus, and spiral.
- Bacilli are rod-shaped, cocci are spherical, and spirals are helical.
Bacterial Reproduction
- Bacteria reproduce asexually by binary fission.
- During fission, a bacterium duplicates its DNA and grows in size.
- A fissure forms at the center of the parent cell, ultimately splitting it into two identical daughter cells.
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