Unit 1 Review

Draw the phospholipid bilayer (cell membrane). Include all marcomolecules

What is the function of the golgi apparatus?

• to further process, modify, and package proteins

• to transport proteins around

• to act as protection

• to store waste

What is the function of lysosomes?

• To make proteins

• To breakdown dead stuff

• to hold DNA and genetic information

• to store wastes and water for the cell

Reorder the following levels of organization from largest to smallest

• Organism

• organ systems

• organs

• tissues

• cell

What is homeostasis?

• stability of the internal envrionment

• a process that speeds up reactions

• when something is wrong in the body

What is a negative feedback loop? Select 2

• the output of a system causes a counter response

• child birth

• Body Temperature

• the output of a system intensifies the response

What is a positive feedback loop? Select 2

• the output of a system intensifies the response

• water concentration

• the output of a systems creates a counter response

• child birth

What is the function of the mitochondria?

• generate energy for the cell

• to store things for the cell

• to protect the cell

• to make proteins

Match the following

• Movement of water

• Facilitated Diffusion

• uses energy to move molecules

• Simple Diffusion

• Moving using vesicles

• Exocystosis/Endocytosis

• moving small molecules

• Molecular pumps

• Using a transport protein for large item

• Osmosis

Organize these options into the right categories

Groups:

(a) Isotonic

,

(b) Hypertonic

,

(c) Hypotonic

• There is less water inside the cell than outside the cell

• Water is the same on the inside and outside of the cell

• cell swells

• Cell stays the same

• Cell shrivels

• There is more water inside the cell than outside the cell