Cell structure
Organelle Jobs
movement & membranes
Cell history and terms
100

What is Cytoplasm?

This is the gel-like substance that fills a cell, found outside the nucleus.

100

What is the Mitochondrion?

This organelle is where cellular respiration occurs, producing ATP.

100

What is Osmosis?

This is the movement of water from an area of higher concentration to an area of lower concentration.

100

What is Histology?

This term refers to the study of tissues.

200

What is the Nucleus?

This organelle is known as the "control center" of the cell.

200

What are Cilia?

These small hair-like structures are responsible for movement or sweeping substances past the cell.

200

What is Selectively Permeable?

This describes a cell membrane's ability to allow only certain substances to pass into or out of the cell.

200

Who is Virchow?

This cell theory scientist demonstrated that cells come from other cells.

300

What are Phospholipids?

The cell membrane is made of two layers of this type of molecule.

300

What is the Chloroplast?

Photosynthesis occurs in this organelle, which contains the materials necessary for the process.

300

What are Membrane Pumps?

This active transport method involves specialized proteins in the cell membrane moving molecules in and out of cells.

300

What is a Prokaryote?

This type of cell, which includes bacteria, lacks a nuclear membrane.

400

What is the Nucleolus?

This dark-stained structure within the nucleus contains RNA and protein and is where ribosomes are made.

400

What are Ribosomes?

These small, non-membranous structures are the site where proteins are formed.

400

What is Swell (or Swell up and burst)?

A cell placed in distilled water will do this because the water moves into the cell.

400

What is a Centrifuge (or Ultracentrifuge)?

This is the instrument used to pull heavier parts of cells away from others, a process known as cell fractionation.

500

What is Chromatin?

In a eukaryotic cell, DNA and its associated proteins together are called this complex material.

500

What is the Endoplasmic Reticulum (or ER)?

The smooth form of this network of membranes is involved in removing toxins, not producing proteins.

500

What is a concentration gradient?

When molecules move from a high concentration to a low concentration, a process known as simple diffusion, they are moving down this type of concentration difference.

500

What is a Gene?

The genetic code for structures of proteins is found on a section of DNA, called this.

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