Podcast
Questions and Answers
What is the key difference between facilitated diffusion and simple diffusion?
What is the key difference between facilitated diffusion and simple diffusion?
- Requires energy in simple diffusion
- Faster rate of transport in simple diffusion
- Higher specificity in facilitated diffusion
- Presence of carrier proteins in facilitated diffusion (correct)
In passive transport, which of the following statements is true?
In passive transport, which of the following statements is true?
- Transport rate is usually slow (correct)
- Energy is required for the movement of molecules
- Specificity for substrate is high
- There is active participation by carrier proteins
What characteristic distinguishes active transport from passive transport?
What characteristic distinguishes active transport from passive transport?
- Requires energy input (correct)
- Has a slow transport rate
- High specificity for substrates
- Does not involve carrier proteins
Which of the following is a feature of secondary active transport?
Which of the following is a feature of secondary active transport?
How does the saturation of a transporter differ from that of a channel?
How does the saturation of a transporter differ from that of a channel?
Which type of transport is characterized by the movement of molecules across a membrane down a concentration gradient, without the requirement of energy?
Which type of transport is characterized by the movement of molecules across a membrane down a concentration gradient, without the requirement of energy?
What is the main difference between facilitated diffusion and simple diffusion?
What is the main difference between facilitated diffusion and simple diffusion?
Which form of transport is considered a passive process due to the lack of energy expenditure?
Which form of transport is considered a passive process due to the lack of energy expenditure?
In which type of transport do molecules move across a membrane with the help of specific carrier proteins but do not proceed against a concentration gradient?
In which type of transport do molecules move across a membrane with the help of specific carrier proteins but do not proceed against a concentration gradient?
What distinguishes active transport from passive transport mechanisms?
What distinguishes active transport from passive transport mechanisms?
Which method of transport involves the cell engulfing particles or fluids from its surroundings?
Which method of transport involves the cell engulfing particles or fluids from its surroundings?
Which type of transport move substances from an area of higher concentration to an area of lower concentration without requiring chemical energy like ATP or GTP?
Which type of transport move substances from an area of higher concentration to an area of lower concentration without requiring chemical energy like ATP or GTP?
Which type of transport relies on transport proteins for moving substances across the membrane?
Which type of transport relies on transport proteins for moving substances across the membrane?
What is a characteristic of simple diffusion in comparison to facilitated diffusion?
What is a characteristic of simple diffusion in comparison to facilitated diffusion?
Which type of transport has a rate that may be affected by factors like temperature and types of membrane proteins involved?
Which type of transport has a rate that may be affected by factors like temperature and types of membrane proteins involved?
In which type of transport do substances move from an area of higher concentration to an area of lower concentration?
In which type of transport do substances move from an area of higher concentration to an area of lower concentration?
Which mechanism of transport directly requires the input of chemical energy like ATP or GTP?
Which mechanism of transport directly requires the input of chemical energy like ATP or GTP?
