DNA, Cell Division, Mitosis, and Meiosis

Who developed the cell theory and when?

• In the 1700s

• Dmitri Mendeleev

• In the 1800s

• Theodor Schwann, Matthias Schleiden, and Virchow

Answer explanation

What are the 3 parts of cell theory? (divide each of your answers with commas)

(a)  

How does something become multicellular if it started out as just one cell?

• Cell division

• Regrowth/growth

• Specialization

• Repair

• Reproduction

The process in which a single cell that divides and becomes 2 and divides again and becomes 4 and so on...

• Cell division

• Regrowth/growth

• Specialization

• Repair

• Reproduction

What are the three purposes of cell division?

• Regrowth/Growth

• Repair (maintaining)

• Reproduction

• Cells

Cells continue to divide to help an organism or part of an organism grow. As the cell grows, more processes are needed for function, so its demand for DNA increases. However, the amount of DNA (instructions) remains constant. The instructions will determine what type of cell it becomes.

• Regrowth/Growth

• Specialization

• Repair

• Reproduction

During development, cells become specialized to perform certain functions.

• Regrowth/Growth

• Specialization

• Repair

• Reproduction

As the cell age and die, they need to be replaced-the body fixes injuries.

• Regrowth/Growth

• Specialization

• Repair

• Reproduction

2 different types: Mitosis and Meiosis

Half the genetic material from each parent is given to the new daughter cell.

Female has the egg/seed while the male has the sperm/seed.

• Regrowth/Growth

• Specialization

• Repair

• Reproduction

Which part of the cell cycle is this: Cell grows and makes a copy of DNA (90% of the cell's life is spent here)

• Interphase

• Prophase

• Metaphase

• Anaphase

• Telophase

Answer explanation