Science Cell Quiz #1

Question 1

Mitosis

Answer 1

starts as one cell, finishes as two identical cells (non-reproductive cells).

Question 2

Meiosis

Answer 2

starts as one cell, finishes as four cells with only half of the DNA (reproductive cells).

Question 3

Cells

Answer 3

The smallest unit capable of performing life functions.

Question 4

Organelles

Answer 4

Tiny structures inside of a cell, each with a specific function.

Question 5

Cell Membrane

Answer 5

Controls movement in and out of the cell, lets ions in on purpose and lets waste out on purpose.

Question 6

Ions

Answer 6

Ions are positive or negative molecules or atoms.

Question 7

Gated Channel

Answer 7

Usually closed, but can open in response to chemical messengers (like a key).

Question 8

Leakage Channel

Answer 8

Usually open and is small enough to let one ion through at a time.

Question 9

Nucleus

Answer 9

Found in the center of the cell, contains DNA, directs all cell activities.

Question 10

Nuclear Membrane

Answer 10

Surrounds the nucleus, protects things from coming in and out of the nucleus.

Question 11

Chromatin

Answer 11

Found in the nucleus, contains DNA (deoxyribonucleic Acid), contains all genetic material, looks like squiggly lines inside of the nucleus.

Question 12

Nucleolus

Answer 12

Found in the nucleus, makes ribosomes.

Question 13

Cytoplasm

Answer 13

Gel-like mixture that contains chemicals and separates organelles from each other, “Blank space” in cell models.