19 Questions
What are cells?
Cells are the basic structural and functional units of all living organisms.
How do cells reproduce?
Cells reproduce conformally through a process called mitosis or meiosis.
How many phases is mitosis divided into?
Mitosis is divided arbitrarily into four phases: prophase, metaphase, anaphase, and telophase.
Describe what happens during prophase.
During prophase, the nuclear envelope disappears, chromosomes begin to appear, and a mitotic spindle forms.
What occurs during metaphase?
During metaphase, chromosomes align along the equatorial plane, becoming the shortest, thickest, and most individualized.
Explain what happens in anaphase.
In anaphase, each chromatide of each chromosome separates and migrates to opposite poles of the cell.
Describe telophase.
In telophase, chromosomes decondense, new nuclear envelopes form, and two distinct cells develop, each with the same genetic information as the original cell.
What are the different phases during interphase?
During interphase, different phases like G1, S, and G2 occur.
Explain the function of the S phase during interphase.
The S phase is the DNA replication phase, where the DNA quantity is multiplied.
Quelle phase du cycle cellulaire est caractérisée par la réplication de l'ADN?
La phase S de l'interphase
Quelle phase du cycle cellulaire permet la croissance de la cellule?
La phase G1 de l'interphase
Qu'est-ce qui se passe pendant la prophase de la mitose?
L'enveloppe nucléaire disparaît et les chromosomes commencent à s'individualiser.
Quelle phase de la mitose voit les chromosomes attachés au fuseau de division?
La prophase
Que se passe-t-il pendant l'anaphase de la mitose?
Chaque chromatide sœur se détache de chaque chromosome et migre vers un pôle opposé de la cellule.
Dans quelle phase de la mitose les chromosomes sont les plus courts, épais et individualisés?
La métaphase
Quelle phase du cycle cellulaire précède la phase de mitose?
L'interphase
Qu'est-ce qui se passe pendant la phase G2 de l'interphase?
Certains organites se multiplient en préparation à la mitose.
Quelle phase de la mitose voit la reconstitution des enveloppes nucléaires et la décondensation des chromosomes?
La téophase
Quelle phase de l'interphase intervient après la phase S?
La phase G2
Study Notes
- Musique: topic is growth and reproduction in living organisms, specifically focusing on cells and their growth cycles.
- Cells are the basic structural and functional units of all living organisms, possessing a genetic heritage in the form of DNA.
- Cells reproduce conformally through a process called mitosis or meiosis.
- Mitosis involves the continuous process of chromosome reproduction, with cells not all being in mitosis at the same time.
- Mitosis is divided arbitrarily into four phases: prophase, metaphase, anaphase, and telophase.
- Prophase: the nuclear envelope disappears, chromosomes begin to appear, and a mitotic spindle forms.
- Metaphase: chromosomes align along the equatorial plane, becoming the shortest, thickest, and most individualized.
- Anaphase: each chromatide of each chromosome separates and migrates to opposite poles of the cell.
- Telophase: chromosomes decondense, new nuclear envelopes form, and two distinct cells develop, each with the same genetic information as the original cell.
- During interphase, the genetic material (DNA) is distributed and the cell grows, with different phases like G1, S, and G2.
- G1: cell growth phase post-division.
- S: DNA replication phase, where the DNA quantity is multiplied.
- G2: preparation phase for mitosis, where organelles multiply.
- Growth and DNA replication occur before mitosis.
- During interphase, the genetic material is present in a less dense, granular form called chromatin.
- Mitosis ensures the reproduction of identical daughter cells with the same genetic information.
Test your knowledge on cell growth and reproduction, focusing on processes like mitosis, meiosis, and the cell cycle. Learn about the phases of mitosis such as prophase, metaphase, anaphase, and telophase, as well as the different stages of interphase like G1, S, and G2.
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