Podcast
Questions and Answers
What is the function of the cell nucleus most similar to?
What is the function of the cell nucleus most similar to?
- The control center of a factory (correct)
- A recycling center for waste
- A storage room for all cell materials
- A delivery system of proteins
Which of the following is the correct order of organization within a cell, from largest to smallest?
Which of the following is the correct order of organization within a cell, from largest to smallest?
- DNA, Chromosome, Nucleus, Cell
- Chromosome, DNA, Nucleus, Cell
- Cell, Chromosome, Nucleus, DNA
- Cell, Nucleus, Chromosome, DNA (correct)
When do chromosomes exhibit their typical 'X' shape?
When do chromosomes exhibit their typical 'X' shape?
- Only when cells are dormant
- Right before cell division occurs (correct)
- During DNA replication
- During regular cell functions such as energy production
If DNA is like a cookbook, a gene could be compared to a:
If DNA is like a cookbook, a gene could be compared to a:
What is the primary function of a gene?
What is the primary function of a gene?
How many cells are approximately in the human body, according to the fun fact?
How many cells are approximately in the human body, according to the fun fact?
Which of the following best describes the relationship between DNA and chromosomes?
Which of the following best describes the relationship between DNA and chromosomes?
What is the function of a cell?
What is the function of a cell?
Flashcards
Cell
Cell
The smallest unit of life that can carry out all the functions necessary for living. It's like a tiny, living factory that can take in nutrients, produce energy, and reproduce to make new cells.
Nucleus
Nucleus
The control center of the cell. It stores genetic information and contains structures called chromosomes.
Chromosome
Chromosome
A structure in the nucleus that contains a single DNA molecule. It's shaped like a cross when DNA replicates and condenses for cell division.
DNA
DNA
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Gene
Gene
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Mitosis
Mitosis
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Sex chromosome pair
Sex chromosome pair
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Proteins
Proteins
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Study Notes
Chromosomes, DNA & Genes
- A cell is the smallest living unit that performs all life functions.
- Cells contain a tiny, living factory that processes nutrients, produces energy, and reproduces.
- The human body has approximately 37.2 trillion cells.
- The nucleus is the control center of a cell, storing genetic information.
- Chromosomes are structures within the nucleus.
- Chromosomes consist of a single DNA molecule.
- DNA's shape resembles a cross when cells divide.
- DNA is like a set of instructions for living organisms.
- Genes are sections of DNA that tell cells how to build proteins.
- Genes are like recipes in a cookbook.
- Each recipe (gene) creates a unique dish (protein).
- The organization of a gene can be traced from the nucleus, to chromosomes, then to DNA.
- A human body cell contains 46 chromosomes (23 pairs).
- Each pair of chromosomes contains the same types of genes.
- The 23rd pair determines sex.
- Females have two X chromosomes (XX).
- Males have one X and one Y chromosome (XY).
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