Absorption of Minerals

Q.

If one chamber has a psi of 2000kPa and the other 1000kPa, which is the chamber that has the higher psi?

Q. If a solute undergoes dimerization and trimerization the minimum value of vent Hoff factor is

Q. What is a tonoplast?

1. Outer membrane of mitochondria
2. Membrane boundary of the vacuole of plant cells
3. Cell membrane of a plant cell
4. Inner membrane of chloroplast

Q.

Name two structures found only in animal cells and not in plant cells.

Q. Mineral ions & water are translocated via _______ , which is pulled by _______.

1. phloem, root pressure
2. xylem, transpiration stream
3. xylem, root pressure
4. phloem, transpiration stream

Q.

What Is The Basis On Which Membrane Proteins Are Classified?

Q. Smaller, lipid soluble molecules diffuse faster through the cell membrane, but the movement of hydrophilic substances are facilitated by certain transporters which are chemically

Q. Depending on the ease of extraction, membrane proteins can be classified as

Q.

Differentiate between plant cell and animal cell.

Q. The inward movement of ions inside the cell is called whereas the outward movement is called .

1. influx
2. flux
3. outflux
4. efflux

Q. The process of absorption of ions into a cell involves

1. Initial rapid uptake of ions into apoplast

2. Slow uptake of ions into symplast

3. Both A and B

4. Active uptake into outer space and passive uptake into inner space

Q.

The structure present in animal cell but not in plant cell is this.

1. Golgi body
   

2. . Vacuole
   

3. Ribosome

4. Centrosome

Q.

Name the following.

Pressure exerted by the protoplasm against the cell wall in the cell.

Q.

Give three important functions of each of the following:

1. ER 2.Lysosomes 3. Golgi Bodies 4. Plastids 5. Nucleus 6. Mitochondria

Q. Facilitated diffusion

1. does not require special proteins
2. requires special proteins
3. works against concentration gradient
4. requires input of energy

Q.

The observation that can be made in Onion peel cell and not in cheek cells.

1. Presence of a cell wall, vacuole, rectangular cells.

2. Presence of ribosomes, cell wall, polygonal cells

3. Presence of chloroplasts, vacuoles, polygonal cells.

4. All the above.

Q. The movement of ions across membranes is called __.

Q. Which of the following cells does not exhibit phagocytic activity?

1. Basophil
2. Neutrophil

3. Macrophage

4. Monocyte

Q.

Why is active transport called an uphill transport?

Q. Identify a type of molecular movement which is highly selective and requires special membrane proteins, but does not require energy.

Q. The uptake of ions by apoplastic pathway is a/an process while by symplastic pathway is a/an process .

1. active
2. flux
3. efflux
4. passive

Q.

Vacuoles are surrounded by a single membrane called ________.

Q.

Seeds when placed in water swell because of

1. osmosis

2. root pressure

3. imbibition

4. diffusion

Q. Active absorption occurs the concentration gradient whereas passive absorption occurs the concentration gradient.

1. against
2. towards
3. inside
4. outside

Q. Various types of transport mechanisms are needed to fulfil the mineral requirements of a plant. Why are they not fulfilled by diffusion alone?

Q. Fill up the blanks with the terms given below in the box.
Animal cells have no cell .

1. pigments
2. wall
3. pre-existing
4. vacuoles
5. cell

Q.

What is the inward movement of ions into cells called?

Q. Transpiration (loss of water) from aerial parts of the plants would facilitate

1. Both apoplastic and symplastic movement

2. None of the above

3. Apoplastic movement of ions only

4. Symplastic movement of ions only

Q.

The cell body of each neurons contain Nissls granules.

1. True
2. False

Q. Difference between apoplst and symplast.