Plant Cells

Plasma membrane

Regulates what enters + leaves the cell

What 3 things is the plasma membrane composed of?

1. Lipids

2. Proteins

3. Carbs

Which microstructure has a bilayer structure?

Plasma membrane

What is the function of the plasma membrane’s bilayer structure?

To restrict other compounds from entering the cell

Cytoplasm

Protoplasm w/in cell excluding nucleus

Mitochondrion

ATP - cellular respiration

What does the mitochondrion convert?

Carbohydrates into energy (ATP)

What cell microstructure also contains DNA that codes for important traits like male sterility?

Mitochondrion

Cytoskeleton

• Structural support

• Movement of cell components

What 3 structures make up the cytoskeleton?

1. Microtubule

2. Intermediate filament

3. Actin filament

Nucleus

• Stores cell hereditary material (DNA)

• Coordinates cell activities

What 3 things js the nucleolus composed of?

1. Protein

2. RNA

3. DNA

What is the function of the nucleolus?

Ribosome synthesis

Nuclear envelope

Double membrane surrounding nucleus

Nuclear pore

Regulates movement of molecules between nucleus and cytoplasm

Rough endoplasmic reticulum

• Contains ribosomes

• Protein production

What cell microstructure consists of connected, flattened sacs that synthesize proteins?

Rough endoplasmic reticulum

What cell microstructure has ribsomes embedded on the outer surface of their membrane?

Rough endoplasmic reticulum

Smooth endoplasmic reticulum

• Synthesis, secretion, storage of lipids

• Metabolism of carbs

Golgi complex

Process + package macromolecules, proteins, + lipids

What cell microstructure consists of flattened, stacked “pouches”?

Golgi apparatus

Peroxisome

• C metabolism

• Abiotic stress response

• Pathogen defense

• Detoxifies cell by converting hydrogen peroxide to water

Cell wall

Outer layer in some organisms that provides support

3 components of the cell wall

1. Polysaccharide materials

2. Lignin

3. Pectins