Which of the following is correct with respect to Facilitated Diffusion?
1. Some channels are always open while others can be controlled
2. All channels are always open
3. Some channels are closed while others are always open
4. No regulation of channels as such.
Molecules move in opposite direction across the membrane by the means of a transport protein, such movement is called
Molecules moves across a membrane independent of other molecules, by the means of membrane protein, the process is called
Which of the following is wrong?
1. Uses energy to transport
2. Uses energy to pump molecules against a concentration gradient
3. Carried out by specific membrane proteins
4. Substances are transported from a high concentration to low concentration
Membrane proteins are for
1. Uphill transport
2. Downhill transport
3. Uphill as well as downhill transport only
4. For Facilitated Diffusion only
Transport proteins are
2. Sensitive to inhibitors
3. Show saturation
4. All of these
Which of the following is not a common characteristic between Active transport and Facilitated Transport?
1. Use of ATP
2. Highly selective
3. Liable to saturate
4. Under Hormonal Regulation
Which one is wrong for Water.
1. Provides a medium in which different substances are dissolved
2. Makes 92% part of watermelon
3. Makes 30-45% part of most herbaceous plants
4. Present in dry seeds as well
1. Loss of water in soil
2. Loss of minerals in soil
3. Loss of water to the air from the leaves
4. Loss of organic substances because of photorespiration
A mature corn plant absorbs…….. of water in a day while a mustard plant absorbs water equal to its own weight in about……..
1. 5L, 3hours
2. 3L, 5 hours
3. 5L, 5 hours
4. 3L, 3 hours