Animal cell - class-VII

• Animal cells are typical of the eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and organelles like ribosomes, mitochondria etc. 
• Unlike the eukaryotic cells of plants and fungi, animal cells do not have a cell wall. 
• Hence, The correct combination of terms with reference to an animal cell is cell membrane, ribosome, mitochondria, chromosome.
• So, the correct answer is 'cell membrane, ribosome, mitochondria, chromosome'.

Plants don't have excretory system, thus possess larger vacuole to store their waste metabolites. Whereas animals have comparatively smaller vacuoles used for storage's of food materials.

Human body has eight type of cells based on the tissues formed by them. They are as followed:

Plant cell is surrounded by cell wal while the animal cell is starts with plasma membrane. The vacuoles are dispersed in animal cell while the plant cell has a large central vacuole.

When animal cells are placed in pure water (Which is as good as a hypotonic solution) they will take in water due to osmosis. The intake of water will make the cells swell up and eventually burst as the cell membrane is weak and it is unable to take the pressure.
Thus, the correct answer is option A.

Microvilli are microscopic cellular membrane protrusions that increase the surface area of cells and are involved in a wide variety of functions including absorption, secretion, cellular adhesion and mechanotransduction.

Animal cell lacks a cell wall, that is why it has no particular shape. It has other organelles like cell membrane and nucleus inside its cell.

Animal cells are typical of the eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and organelles. Unlike the eukaryotic cells of plants and fungi, animal cells do not have a cell wall.

Hormones bring about their characteristic effects on target cells by modifying cellular activities. The given experiment shows that the hormone is a releasing hormone which has increased the secretion of protein product in the target cell.

Desmosomes are circular regions where adjacent membranes possess disc-shaped thickening on the inner side, a number of tonofibrils and transmembrane linkers embedded in the dense intercellular material. Desmosomes act as 'spot welds' and keep the cells firmly together. They occur in epithelia subjected to disruption. 

Plants, fungi, some protozoa and some bacteria unlike animal cells have a distinct structure called a cell wall.