7, A cell uses centrioles in the process of a) cell division b) energy generatio

Question

7, A cell uses centrioles in the process of a) cell division b) energy generation c) protein synthesis 6) RNA replication 8. The process by which cytoplasm divides during cell division is known es a) cytokinesis b) karyokinesis c) phegacytosis d) synthesization 9. The variaus types of epithelium are classified by the a) Size and shape af cell b) Shape of cell and number of cell layers c) Number of cell tayer and size of the celis d) Size and lacation of the celis 10. The dermis a) contains no blood vessels b) functions as padding or insulation c) is responsible for most of the skin's structural strength d) is divided into three distinct layers 11. Collagen, elastin, and reticular flbers in connective tissues are special types of a) phospholipid b) carbohydrate c) adipose tissue d) protein 12. From where do the ceills of the epidermis obtain oxygen and rutrients? a) From blood vessels in the epidermis b) Diffusion from blood vessels in the dermis c) Diffusion from the air d) From blood vessels in other epithelia) tissue 13. The perichondrium is a layer of fibrous connective tissue surrounding a) a bone b) most cartilage c) a blood vessel d)Pericardial cavity

Explanation / Answer

7.Correct answer is: a) cell division

Reason:Centrioles function in formation of spindle fibres required during cell division.

8.Correct answer is: a) cytokinesis

Reason: Cytoplasm division is also known as cytokinesis

9.Correct answer is:b) shape of cells and number of cell layers

Reason:Classification is based on number of cell layers and shape of the cells in the upper layer.

10.Correct answer is :c) responsible for most of the skin's structural strength

Reason:Collagen present in dermis provides strength.

11.Correct answer is: d) protein

Reason: all are proteins.

12.Correct answer is: b) Diffusion from blood vessels in the dermis

Reason:As blood vessels cant reach the epidermis, they get nutrient supply and oxygen from blood vessels in dermis.

13.Correct answer is: b) most cartilage

Reason:Perochondrium envelops cartilage where there is no joint.

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