Bioni

Chromosome

coiled up DNA. In the nucules. We have 46 chromozons

sister chromatidsq

X shaped.

Mitosis

Division of the nucules. Steps:PMAT

Cell cycle

Begins when the cell is created. Ends when a cell divides

Interphase

before mitosis. The cell is growing+getting ready to divide.

DNA replication

Happens in innerphase. DNA duplicates making sister chromotids

Prophase

The first stage. Nucular membrane breaks down. Chromosones coil up and spindle fibers more.

metaphase

chromozones attach to spindle fibers and line up in the middle.

Annaphase

spindle fibers shorten. Sister chromotids break apart and move to opposite sides.

Telophase

nucular membrane reforms. The chromozons uncoil. The spindle fibers break down and dissapear. Cyto

cytotisis

Cytoplasm spits, 2 new sells are created.

Spindle fibers

attach to chromozons during mitosis. Split sister chromotids apart .

Nucular menbrane

surronds the nuculus. Breaks down in pro phase. Reforms in telophase.

Daughter cells

This is what I c all the 2 new cells that are made after mitosis and cytoinessis.

What cells have more efficient diffusion

small because its quicker to digest to the middle

What do cells need to diffuse into their organelles

Oxygen

why does mitosis occur.

to grow or repair

Why does cytokinesis look diffrent in animal and plant cells

animal cells membranes are flexible + pinch together until till they are seprate.

Steps of dna replacation.

dna is split up the middle. New bases pair with the orginal strand.