What is Science?
Macromolecules & Enzymes
Cells & Their Functions
Structure of DNA
Cell Division
100

This is an educated guess that can be tested.

What is a hypothesis?

100

This macromolecule is the main source of energy for the body.

What is a carbohydrate?

100

This organelle is the control center of the cell.

What is the nucleus?

100

DNA is shaped like this.

What is a double helix?

100

The process by which a cell divides into two identical daughter cells.

What is mitosis?

200

This variable is intentionally changed in an experiment.

What is the independent variable?

200

The monomer of a protein.

What is an amino acid?

200

The powerhouse of the cell, responsible for energy production.

What is the mitochondrion?

200

The base that pairs with adenine (A) in DNA.

What is thymine (T)?

200

The phase of the cell cycle where the cell spends most of its time growing and preparing for division.

What is interphase?

300

A group in an experiment that does not receive treatment and is used for comparison.

What is the control group?

300

Enzymes speed up reactions by lowering this.

What is activation energy?

300

These cells do not have a nucleus.

What are prokaryotic cells?

300

The three parts of a nucleotide.

What are a sugar, phosphate, and nitrogen base?

300

The stage of mitosis where chromosomes line up in the center of the cell.

What is metaphase?

400

The factor that is measured as a result of changes in an experiment.

What is the dependent variable?

400

The site on an enzyme where the substrate binds.

What is the active site?

400

This organelle is responsible for making proteins.

What are ribosomes?

400

These molecules make up the backbone of the DNA strand.

What are sugar and phosphate?

400

The final phase of mitosis where the nuclear envelope starts to reform.

What is telophase?

500

The term for all variables that are kept the same in an experiment to ensure accurate results.

What are control variables?

500

This macromolecule stores genetic information in the body.

What is a nucleic acid?

500

This organelle helps transport materials throughout the cell and can be rough or smooth.

What is the endoplasmic reticulum?

500

The rules that determine how nitrogen bases pair together in DNA.

What are the base-pairing rules?

500

A disease that results from uncontrolled cell division.

What is cancer?

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