BIO111 Week 3

What is the unified cell theory?

• All cells have a true nucleus

• All organisms are composed of one or more cells

• Prokaryotic cells are larger than eukaryotic cells

• Eukaryotic cells lack membrane-bound organelles

What is the main difference between prokaryotic and eukaryotic cells?

• Eukaryotic cells are typically smaller

• Prokaryotic cells have a true nucleus

• Prokaryotic cells lack a plasma membrane

• Eukaryotic cells have membrane-bound organelles

What is the function of the nucleolus in a eukaryotic cell?

• DNA replication

• Ribosome assemble

• Protein synthesis

• ATP production

What is the primary component of the plant cell wall?

(a)  

• Cholesterol

• Cellulose
• Phospholipids

• Ribosomes

What is the modern understanding of the plasma membrane referred to as?

(a)  

• Static model

• Rigid model

• Fluid mosaic model
• Mosaic model

What process moves material from areas of high concentration to areas of low concentration?

(a)  

• Osmosis

• Endocytosis

• Diffusion
• Active transport

What type of transport uses energy stored in ATP to fuel the movement of substances?

(a)  

• Exocytosis

• Active transport
• Endocytosis

• Passive transport

What is the process in which a portion of the membrane invaginates and flows around a particle?

What is the function of lysosomes in animal cells?

• Protein synthesis

• DNA replication

• Digestion

• ATP production

What is the primary function of chloroplasts in plant cells?

(a)  

• Digestion

• Cellular respiration

• ATP production

• Photosynthesis