71100 Lecture one

Multiple Choice

What is the function of the nucleus, as shown by the arrow?

• Breaks down glucose to make usable energy (ATP)

• Does photosynthesis to make glucose

• Controls what goes in and out of the cell

• Controls the cell processes and stores DNA/gentic material

Multiple Choice

What is the primary function of the nucleolus in the cell?

• To store DNA

• To form RNA for ribosomes

• To produce energy

• To regulate cell division

Multiple Choice

What is the function of nuclear pores in the cell?

• To regulate DNA

• To allow RNA movement

• To form the nuclear envelope

• To protect the nucleus

Multiple Choice

What is the primary function of the Granular Endoplasmic Reticulum (ER)?

• Synthesizing lipids

• Transporting proteins

• Storing calcium

• Packaging proteins

Multiple Choice

What is the primary function of endosomes in cellular transport?

• Sorting and modifying proteins

• Generating energy

• Synthesizing DNA

• Transporting oxygen

Multiple Choice

What is the primary function of the Golgi apparatus in cells?

• To synthesize proteins

• To modify and sort proteins

• To store genetic information

• To produce energy

Multiple Choice

What are the three main functions of lysosomes as shown in the image?

• Cleavage of organic substances

• Destruction of dead cell organelles

• Reabsorption of nutrients

• All of the above

Multiple Choice

What are the three main functions of peroxisomes as described in the image?

• Hydrogen peroxide metabolism

• Fatty acid oxidation

• Lipid biosynthesis

• Protein synthesis

Multiple Choice

What are the main components of the cytoskeleton as shown in the image?

• Microfilaments

• Intermediate filaments

• Microtubules

• All of the above

Multiple Select

Select all the functions of the cytoskeleton:

• make up the microtubules and filaments of the spindle apparatus

• help position the organelles in their correct location

• help transport vesicles throughout the cell

• help hold the cell's overall shape

• double the cells DNA

Multiple Choice

Examine the animal cell, what does number 8 represent?

• Smooth ER

• Rough ER

• Nucleus

• Golgi Apparatus

• Mitochondria

Open Ended

What is the difference between the two different types of membrane transport?

Multiple Choice

What is the function of the cholesterol of the cell membrane?

• allows large molecules to pass through the cell membrane

• allows small, non-polar molecules to pass through the cell membrane

• identifies the cell and allow for cell-to-cell communication

• stabilizes the fluidity of the cell membrane

Multiple Choice

What are the two regions of phospholipids in the membrane structure?

• Charged region and non-polar region

• Hydrophilic and hydrophobic regions

• Outer and inner layers

• Fatty acids and proteins

Multiple Choice

What is the result of the phospholipids not being bonded together in the membrane structure?

• The membrane is rigid

• The membrane is flexible

• The membrane cannot bend

• The membrane is impermeable

Multiple Choice

What is the function of the glycoprotein in the membrane surface?

• To provide structural support

• To enable cells to identify and interact with one another

• To transport substances across the membrane

• To store genetic information

Open Ended

Cell membranes are said to be selectively permeable. What is meant by the term 'selectively permeable'?

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident