Biology
Assertion (A): Epithelial tissues form a protective covering of cells, found only on the outer surface of the body.
Reason (R): Epithelial tissues are also found around internal organs, line inner body surfaces and perform various functions like absorption, secretion, etc.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Tissues
2 Likes
Answer
A is false but R is true.
Reason — A is false as epithelial tissue is not found only on the outer surface of the body. While it does form the outer skin layer, it is also present internally.
R is true as epithelial tissues also line internal organs and cavities (like lungs, intestine, blood vessels) and perform functions such as absorption, secretion, protection, and filtration.
Therefore, A is false but R is true is the correct option.
Answered By
2 Likes
Related Questions
Assertion (A): All organisms, whether unicellular or multicellular, start their life from a single celled structure called the zygote.
Reason (R): Zygote is formed by the fusion of two unicellular structures (gametes) during the process of fertilization among higher plants and animals.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Blood and lymph, both contain the same fluid (plasma) but they differ from each other in their cellular contents.
Reason (R): Blood contains red blood cells and platelets whereas lymph contains only white blood cells.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
State whether the following statement are True or False.
(i) A tissue is formed of only one type of cells.
(ii) Only one type of tissue forms an organ.
(iii) Permanent tissue is made up of undifferentiated and dividing cells.
(iv) Meristematic tissue is found at the growing tips of a plant.
(v) Phloem is formed of dead tubular cells.
Fill in the blanks by selecting suitable words from the list given below:
[thin-walled, collenchyma, vascular, tissues, conducting]
(i) A group of different …………… working together to perform a function is called an organ.
(ii) Xylem and phloem form the …………… tissue.
(iii) Conducting tissue is also called …………… tissue.
(iv) Cells are elongated and thick at the corners in …………… tissue.
(v) Parenchyma is composed of large …………… cells.