The fundamental unit of life

Which of the following statement marks as a difference between plant cell and animal cell?

• Plant cells have cell wall which animal cells do not.

• Plant cells do not have vacuole while animal cells do have

• Plant cells have only cell membrane while animal cells have both cell wall as well as cell membrane.

• Plant cells have more plastids while animal cells have few plastids.

The proteins and lipids, essential for building the cell membrane, are manufactured by:

• Golgi apparatus

• Endoplasmic reticulum

• Mitochondria

A cell will swell up if

• the concentration of water molecules in the cell is higher than the concentration of water molecules in the surrounding medium.

• the concentration of water molecules in the surrounding medium is higher than water molecules concentration in the cell.

• the concentration of water molecules is same in the cell and in the surrounding medium

• concentration of water molecules does not matter

Chromosomes are made up of

• DNA

• Protein

• DNA and protein

• RNA

Plasmolysis in a plant cell is defined as

• breakdown (lysis) of plasma membrane in hypotonie medium

• shrinkage of cytoplasm in hypertonic medium

• shrinkage of nucleoplasm

• none of them

Which of the following are covered by a single membrane?

• Mitochondria

• Lysosome

• Plastid

• Vacuole

The undefined nuclear region of prokaryotes is also known as

• nucleus

• nucleoid

• nucleolus

• nucleic acid

Kitchen of the cell is

• golgi apparatus

• endoplasmic reticulum

• chioroplast

• mitochondria

Cell arises from pre-existing cell was stated by

• Virchow

• Hooke

• Schleiden

Organelle without a cell membrane is

• ribosome

• golgi apparatus

• chioroplast

• nucleus