NATS 1670 - Cell Structure

10^14

Humans have how many cells?

Hydrophilic interaction.

Membranes act like oil and water. What is this called?

Cell membrane that regulates flow in and out of the cell; contains DNA; has variations of RNA; has proteins; made of the same chemicals (carbohydrates, proteins, fats, vitamins, minerals, and nucleic acid); reproduce; require energy (ATP)

What are the 7 characteristics all cellular life have in common?

Lisosomes

These organelles are the waste disposal system of the cell, using enzymes to break down molecules.

Transmembrane proteins

These proteins work to move things in and out of the cell.

Bacilli

This bacterial cell shape is rod-like.

Cocci

This bacterial cell shape is spherical.

Spiral

This bacterial cell shape is twisted.

Plasma membrane

This cell structure acts as a stable, flexible barrier between two polar compartments

Vesicle

This cell structure can fuse with the plasma membrane to transfer the molecules it contains to the other side of the membrane.

Mitochondria

This organelle is the power source of the cell, by generating ATP

Nucleus

This, the largest organelle, is used to create RNA from the DNA it contains.

Yes

Do eukaryotic cells have a nucleus?

No

Do prokaryotic cells have a nucleus?

no

Due to the atoms that make it up, water has _ charge.

Prokaryotic cells

Mitochondria act similarly to which cells?

Endocytosis

The cell needs to wrap itself around larger molecules in order to absorb them. Viruses use this process to enter the cell, appearing as a vesicle.

True

There is a theory which believes that eukaryotic cells absorbed bacterial cells through endocytosis, and created a symbiotic relationship between the two where the prokaryotic bacteria cell evolved into the mitochondria.

Organelles

These compartments are only visible in eukaryotic cells. Each of them has a seperate and distinct task to do.

1600's

When was cell theory established?