Cell biology

Who was a biochemist who immigrated to the United States and was a professor of biochemistry at Columbia University medical school?

• Justin Bieber

• Rosalind Franklin

• Erwin Chargaff

• Johannes Friedrich Miescher

How many cells are in the human body?

• 37 million

• 37 billion

• 37 trillion

• 37 quadrillion

                                                                                                  the little structures on the ER are what 

• ribosomes 
• vacuoles
• lysosomes
• cell membrane 

Using this image, what organelle is C?

• Cell Wall
• Mitochondria
• Large Cell Vacuole
• Chloroplast

Nucleus

• Prokaryote

• Eukaryote

• Both

The cell membrane is a double layer of phospholipids that protects the contents of the cell.  If the phospholipids that help make-up the membrane have a phosphorus head portion that is hydrophilic and a tail made of lipids that are hydrophobic, what can be said about the contents that are both inside and outside the cell?

• The contents inside and outside of the cell must contain a fat that repels the tails of the phospholipids.
• The contents inside and outside of the cell must contain water because the tails of the phospholipids are drawn to the water due to it being hydrophobic.
• Carbohydrates must be inside and outside of the cell because the heads of the phospholipids are hydrophilic. 
• The contents inside and outside of the cell must contain water because the heads of the phospholipids are drawn to the water due to it being hydrophilic.

What is inside the nucleus of cells?

• Mitochondrion

• Golgi apparatus

• Lysosomes

• DNA

Independent Variable is the variable that changes as a result of changing the IV.

• True

• False

Using this image, what organelle is G?

• Large Central Vacuole
• Chloroplast
• Mitochondria
• Cell Wall

Using this image, what organelle is A?

• Cell Wall
• Large Central Vacuole
• Mitochondria
• Chloroplast