Question
The head of a phospholipid is ______.
- Hydrophilic
- Hydrophobic
- Hydrophilic and hydrophobic
- Neutral
Hint:
The phospholipids consist of two parts, both containing variable properties.
The correct answer is: Hydrophilic
- The head of the phospholipid is hydrophilic in nature.
- The phospholipids are a group of lipid molecules that consist of two-part, one head and one tail. The head consists of a glycerol molecule bound to the phosphate group. It is hydrophilic in nature. Whereas the tail is composed of carbon and hydrogen atoms and is hydrophobic in nature.
- The word hydrophobic refers to water hating, and the word hydrophilic means water loving. Since the head consists of molecules that go well with water, it is hydrophilic in nature. Similarly, the carbon and hydrogen compounds present in the tail are soluble in oils and ester, but not in the water, thus they are hydrophobic in nature.
The phospholipids are present in the cell membrane. It helps to create pores and the movement of certain molecules across the membrane.
Related Questions to study
Without the cell, we cannot______.
The cells consist of a vast variety of organelles that help in the proper functioning of the body.
Without the cell, we cannot______.
The cells consist of a vast variety of organelles that help in the proper functioning of the body.
Plant and animal are ________.
The cells combine together to form tissues, and these tissues form organs which lead to the formation of the organ system.
Plant and animal are ________.
The cells combine together to form tissues, and these tissues form organs which lead to the formation of the organ system.
______ is also known as cell membrane.
The cell membrane is semi-permeable in nature. It only allows certain molecules to pass through it and resists the movement of other molecules.
______ is also known as cell membrane.
The cell membrane is semi-permeable in nature. It only allows certain molecules to pass through it and resists the movement of other molecules.
_____ is present between cytoplasm and cell wall in plant cell.
The plasma membrane consists of a lipid bilayer with integral proteins embedded in it.
_____ is present between cytoplasm and cell wall in plant cell.
The plasma membrane consists of a lipid bilayer with integral proteins embedded in it.
Which of the following proteins are embedded in the membrane?
The membrane proteins have two crucial roles, one structural and the other one is functional.
Which of the following proteins are embedded in the membrane?
The membrane proteins have two crucial roles, one structural and the other one is functional.
Transport proteins are ________ proteins.
Globular proteins also act as enzymes apart from being a part of transport proteins.
Transport proteins are ________ proteins.
Globular proteins also act as enzymes apart from being a part of transport proteins.
The organism which is made up of only one cell is called __________.
Unicellular organisms are like amoeba, paramecium, etc.
The organism which is made up of only one cell is called __________.
Unicellular organisms are like amoeba, paramecium, etc.
Which of the following helps in the transport of material across the membrane?
The cell membrane is also known as the plasma membrane or cytoplasmic membrane.
Which of the following helps in the transport of material across the membrane?
The cell membrane is also known as the plasma membrane or cytoplasmic membrane.
Cell membrane is a part of_________.
The cell membrane is a semi-permeable membrane. This means that it only allows selected substances or molecules to move across it and act as a barrier for the others.
Cell membrane is a part of_________.
The cell membrane is a semi-permeable membrane. This means that it only allows selected substances or molecules to move across it and act as a barrier for the others.
The air above the ocean and lakes is dry.
The air above the ocean and lakes is dry.
The amount of water vapor in the air is calculated as humidity.
The amount of water vapor in the air is calculated as humidity.
The amount of rainfall is measured by using a hygrometer.
The amount of rainfall is measured by using a hygrometer.
The humidity in deserts is typically very low.
The humidity in deserts is typically very low.
It is not easy to walk against the wind on a windy day.
It is not easy to walk against the wind on a windy day.
Jasmine carried out an experiment. She placed two bowls of sand and water in the sunlight. She took the temperatures after an hour. She then took both the bowls into her home and placed them in an area with no light. She took another temperature after an hour and conducted the following observations:
| Sand |
Water |
|
| Before placing the bowls in the sunlight |
370C |
300C |
| After keeping the bowls in the sunlight for one hour |
370C |
320C |
| After keeping the bowl inside the house for one hour |
310C |
310C |
Jasmine carried out an experiment. She placed two bowls of sand and water in the sunlight. She took the temperatures after an hour. She then took both the bowls into her home and placed them in an area with no light. She took another temperature after an hour and conducted the following observations:
| Sand |
Water |
|
| Before placing the bowls in the sunlight |
370C |
300C |
| After keeping the bowls in the sunlight for one hour |
370C |
320C |
| After keeping the bowl inside the house for one hour |
310C |
310C |
