Endocytosis

Q. The process in which amoeba engulf prey is

1. Exocytosis
2. Phagocytosis
3. Osmosis
4. Pinocytosis

Q. What is a cell sap?

1. Living contents of cell
2. Non living contents of protoplasm
3. Non living contents of vacuole
4. Living content of cytoplasm

Q. Write a note on exocytosis and endocytosis.

Q. Define Phagocytosis/ Pinocytosis/ Exocytosis ?

Q. Assertion (A): Endocytosis takes place only in animal cells.

Reason (R): Animal cell does not possess cell wall.

Q. Endocytosis is

1. Animals engulf food and other substances from external medium by plasma membrane.
2. Animals engulf food and other substances from internal medium by plasma membrane.
3. Plants engulf food and other substances from internal medium by plasma membrane.
4. None of these

Q.

Cell taking in some fluid by an infolding of the membrane is called as ___ .

Q. Only passive type of transport takes place by:

1. Na${}^{+}$/K${}^{+}$ pump
2. Carriers
3. Channels
4. All pumps

Q. When the cell membrane wraps around particles and merges with the rest of the cell membrane to allow the particles inside the cell is called

1. Exocytosis
2. Endocytosis
3. None of the above
4. Pinocytosis

Q. Briefly describe pinocytosis and phagocytosis. Differentiate between the two.

Q. During endocytosis

1. The cell divides its cytoplasm during mitosis.
2. The cell engulfs and internalises materials using its membrane.
3. The cell digests itself.
4. The cell enables the extracellular digestion of large molecules.

Q. Which of the following is a type of endocytosis

1. Phagocytosis
2. Receptor-mediated endocytosis
3. Pinocytosis
4. All of the above

Q. (a) Why is transport of materials necessary in an organism (plant or animal) ?

Q. Molecules that are too large to pass through the pores of a cell membrane may enter the cell by a process known as

1. cyclosis
2. pinocytosis
3. hydrolysis
4. synthesis

Q. Which of the following is a type of endocytosis

1. Receptor-mediated endocytosis
2. Pinocytosis
3. Phagocytosis
4. All of the above

Q. When lysosomes burst, they release their enzymes and digest entire cell. It is called

1. Autophagy
2. Autolysis
3. Endocytosis
4. Exocytosis

Q. In endocytosis, the cell

1. Digests itself
2. Divides cytoplasm in mitosis
3. Engulfs and internalises materials with its membrane
4. Enable extracellular digestion of larger molecules

Q. Infolding of membrane to allow a large molecule to enter the cell is called

1. phagocytosis
2. endocytosis
3. exocytosis
4. pinocytosis

Q. Carrier ions like Na+ facilitate the absorption of substances, such as

1. Glucose and amino acids
2. Glucose and fatty acids
3. Glucose and fructose
4. fatty acids

Q. Distinguish between exocytosis and endocytosis.

Q. Which of the following is a type of endocytosis

1. Phagocytosis
2. Receptor-mediated endocytosis
3. Pinocytosis
4. All of the above

Q. Large substances can move across the cell membrane by bulk transport either into or out of the cell. What is the name of the process a cell uses to surround and engulf a particle to create a vesicle to bring it into the cell?

1. Exocytosis
2. Endocytosis
3. Simple diffusion
4. Facilitated diffusion
5. Osmosis

Q. Infolding of membrane to allow a large molecule to enter the cell is called

1. phagocytosis
2. endocytosis
3. exocytosis
4. pinocytosis

Q. Ingestion of solid or liquid substances into cell is referred to as

1. Endcytosis
2. Diffusion
3. Osmosis
4. Exocytosis

Q. Differentiate between the following
(i) Endocytosis and exocytosis.