Unit 1 & 2 ATAR 11 Biology Formative Test

1.1.1. Explain the Fluid Mosaic Model.

• Fluid : Protein and phospholipid are able to move up down or side by side

  Mosaic : Arrangement of different protein are embedded or attached in phospholipid bilayer

• Fluid : Protein and phospholipid are able to move laterally or side by side

  Mosaic : Arrangement of different protein are embedded or attached in phospholipid bilayer

• Fluid : Protein and phospholipid are able to move laterally or up down

  Mosaic : Arrangement of different protein are embedded or attached in phospholipid bilayer

• Fluid : Protein and phospholipid are able to move laterally or side by side

  Mosaic : Arrangement of different protein are embedded or attached in phospholipid

1.1.1. Define Endocytosis.

• the movement of large molecules from the inside of the cell to the outisde of the cell using channel proteins.

• the movement of large molecules from the inside of the cell to the outisde of the cell membrane vesciles.

• the movement of large molecules from the outside of the cell to the inside of the cell using membrane vesciles via active transport.

• the movement of large molecules from the outside of the cell to the inside of the cell using channel proteins.

1.1.1. Select the correct response to fill in the blanks:

Active transport _______ and is the movement of a substance from ___________________ concentration.

• requires energy, high to low

• requires no energy, low to high

• requires no energy, high to low

• requires energy, low to high

1.1.1. Select the answer that correctly describes when something goes "along" its concentration gradient.

• goes from an area of low concentration to an area of high concentration

• goes from an area of high concentration to an area of low concentration

1.1.1. Select True/False for the following:

One type of endocytosis is phagocytosis.

• True

• False

1.1.2. Determine which is true regarding prokaryotic and eukaryotic cells.

• Prokaryotic cells are larger than eukaryotic cells.

• Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.

• Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.

• Eukaryotic cells are simpler than prokaryotic cells.

1.1.2. From the following structures, which would distinguish between a prokaryote and a eukaryote.

• The presence of a ribosome

• The presence of a cell membrane

• The presence of DNA

• The presence of a nuclear membrane

1.1.2. Identify the organelle

• Golgi Apparatus

• Mitochondria

• Nucleus

• Ribosome

1.1.3. When a piece of liver is dropped into hydrogen peroxide, the peroxide bubbles vigorously as the hydrogen peroxide (H₂O₂) decomposes into water (H₂O) and oxygen (O₂).

Deduce what this rapid change in reaction rate suggests.

• that liver contains lots of germs

• the liver contains an enzyme that breaks down hydrogen peroxide

• that liver is a substrate for hydrogen peroxide

• that hydrogen peroxide is a powerful enzyme

1.1.3. Identify the the substance that is acted upon by an enzyme.

• Coenzyme

• Substrate

• Vitamin

• Polypeptide