LE- Quarters 1 & 2 Review

Front

What are chromosomes?

Back

Chromosomes are structures within cells that contain DNA and carry genetic information. They are made up of DNA tightly coiled around proteins.

Front

How do you convert millimeters to micrometers?

Back

To convert millimeters to micrometers, multiply the length in millimeters by 1000. For example, 0.008 mm is 8 micrometers.

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

What is the purpose of an experiment in scientific research?

Back

An experiment is conducted to test a hypothesis by manipulating variables and observing the effects, allowing scientists to draw conclusions.

Front

What happens to a plant cell in a hypertonic solution?

Back

In a hypertonic solution, water leaves the plant cell, causing it to shrink and potentially leading to wilting.

Front

Define eukaryotic cells.

Back

Eukaryotic cells are complex cells that contain a nucleus and organelles, and are found in organisms such as plants, animals, and fungi.

Front

What is the function of the nucleus in a cell?

Back

The nucleus is the control center of the cell, containing the cell's genetic material (DNA) and regulating gene expression.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and organelles.

Front

What is the role of DNA in living organisms?

Back

DNA carries the genetic instructions for the development, functioning, growth, and reproduction of all known living organisms.

Front

What is a hypothesis?

Back

A hypothesis is a testable statement or prediction about the relationship between two or more variables.