Onion Root Tip

What is the next phase of mitosis?

• Prophase

• Metaphase

• Anaphase

• Telophase

Tags

NGSS.HS-LS1-4

A student is examining an onion root tip cell under a microscope. Based on her observations, the student proposes that the onion root tip cell has completed interphase and is now in the first phase of mitosis.

Which of the following pieces of evidence would best support the student’s claim?

• The DNA is not visible.

• Separated sister chromatids are being pulled towards opposite ends of the cell.

• The DNA is beginning to condense and become visible.

• The cell’s chromosomes are aligned across the metaphase plate.

Mitosis creates

• 2 cells with half the DNA

• 4 cells with half the DNA

• 2 Identical cells with equal DNA

• cancer

Tags

NGSS.HS-LS1-4

Which stage of mitosis involves the splitting of centromeres and the migration of sister chromatids?

• Prophase

• Prometaphase

• Metaphase

• Anaphase

Tags

NGSS.HS-LS1-4

Why is an onion root tip a good place to look for dividing cells?

• Because it is place where the plant is growing

• Because it is a place where the plant is healing

• Because it is a place where the plant is reproducing

• Because it is a place where the plant is absorbing water

Tags

NGSS.MS-LS1-1

What is the dark red material we see being moved inside this cell?

• Nucleus

• DNA

• Cytoplasm

• Hemoglobin

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Using what you've seen in our splitting cell videos and on the onion root tip slides, place the images of a dividing cell in order from start to finish.

• 
• 
• 
• 
• 

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

There are many dots on the screen.

Mark only the dots touching a cell that is currently dividing

Tags

NGSS.HS-LS1-4

Which phase of the cell cycle is most commonly observed in an onion root tip?

• Interphase

• Prophase

• Metaphase

• Anaphase

What is the primary purpose of using an onion root tip in cell division studies?

• To observe chloroplasts

• To study photosynthesis

• To examine mitosis

• To analyze cell wall structure