Asked by Shreya Singh on Jun 25, 2024
Verified
The number of mitochondria in a cell would be a general indicator of the extent of
A) diffusion.
B) facilitated transport.
C) active transport.
D) osmosis.
E) both osmosis and diffusion.
Mitochondria
Membrane-bound organelles found in the cytoplasm of almost all eukaryotic cells, essential for producing energy via the process of oxidative phosphorylation.
Active Transport
The movement of molecules across a cell membrane from a region of lower concentration to one of higher concentration, requiring energy.
Facilitated Transport
A process of passive transport, mediated by carrier proteins, that allows substances to move across cell membranes without expending energy.
- Distinguish between active and passive transport processes, such as facilitated diffusion, and understand their critical role in cellular activities.
- Gain insight into the utilization of ATP by cells in transport mechanisms and understand the impact of ATP blockade on cellular activities.
Verified Answer
LN
leonardo nunezJun 26, 2024
Final Answer :
C
Explanation :
The number of mitochondria in a cell is an indicator of the extent of active transport. Mitochondria are responsible for generating ATP, the energy currency of the cell, through a process called oxidative phosphorylation which requires the active transport of ions such as H+ across the inner mitochondrial membrane. Therefore, the more mitochondria a cell has, the greater its capacity for active transport. Diffusion, facilitated transport, and osmosis do not rely on mitochondria for their mechanisms.
Learning Objectives
- Distinguish between active and passive transport processes, such as facilitated diffusion, and understand their critical role in cellular activities.
- Gain insight into the utilization of ATP by cells in transport mechanisms and understand the impact of ATP blockade on cellular activities.