Endocytosis

Q.

What is endocytosis ?

Q.

What do you mean by Endocytosis? Explain with the help of a diagram
Hence explain how an Amoeba obtains its food with the help of a diagram. [5 MARKS]

Q.

Write a note a endocytosis.

Q. Which are the true statements regarding Active transport?

1. Energy dependent process.
2. Occurs across the plasma membrane against the concentration gradient
3. Faciliated transport is a type of Active transport.
4. Diffusion is a type of Active transport.
5. Osmosis is a type of Active transport.

Q.

Are carrier proteins active or passive?

Q.

What are the different types of transport across cell membranes?

Q. what is endocytosis?one example for that.

Q. Amoeba takes its food by the process of:

1. Exocytosis
2. Plasmolysis
3. Egestion
4. Endocytosis

Q.

What are the different types of mechanism of transport across plasma membrane?

Q. The process of ingestion of liquid food particles or materials by the cells through the plasma membrane is called_______.

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

Q. Which of the following statements are correct about the application of transport across the Plasma membrane?

1. Unicellular freshwater organisms and most plant cells tend to gain water through diffusion.
2. Phagocytosis occurs in WBCs.
3. Diffusion occurs in plants and animals.
4. Unicellular freshwater organisms and most plant cells tend to gain water through bulk transport.
5. Unicellular freshwater organisms and most plant cells tend to gain water through osmosis.

Q.

Are carrier proteins required for active transport?

Q.

Phagocytosis is carried out by ______.

Q.

Which is the best example of active transport?

Q.

Is osmosis active or passive?

Q.

Does facilitated transport require energy?

Q. What is endocytosis

Q.

Is transport a function of proteins?

Q. Amoeba acquires its food by the process of

1. Endocytosis
2. Plasmolysis
3. Osmosis
4. Phagocytosis

Q.

Question 16
Amoeba acquires its food through a process called:

(a) Exocytosis
(b) Endocytosis
(c) Plasmolysis
(d) Exocytosis and endocytosis both

Q.

Write down the names of three types of endocytosis.

Q. Why is endocytosis found in animals only?

1. Cell wall is absent in animal cells.
2. Cell wall is present in animal cells.
3. Cell membrane is absent in animal cells.
4. None of these

Q. Identify the process by which substances are transported across cell membranes by means of protein carrier molecules?

1. Ion Pump
2. Passive Transport
3. Bulk Transport
4. Faciliated Transport

Q.

Is a protein pump active or passive?

Q. In a laboratory a normal animal cell is placed into a solution. After some time the cell becomes shrinked. What kind of solution is it?

1. Hypotonic Solution
2. Hypertonic Solution
3. Isotonic Solution
4. Mesotonic Solution

Q.

Active transport is responsible in the removal of harmful materials.

1. True
2. False

Q.

What is active transport ?

Q.

Question 16
Amoeba acquires its food through a process called:

(a) Exocytosis
(b) Endocytosis
(c) Plasmolysis
(d) Exocytosis and endocytosis both

Q. Which of the following process is distinctly different from the other three?

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

Q.

The energy necessary for active transport across cytoplasmic membranes is believed to come from

1. ATP

2. diffusion

3. osmosis

4. kinetic energy