Problem 199
Assertion: Polysomes are found in prokaryote as well as eukaryotes Reason: Polysomes use to produce more protein replica from single mRNA.
Problem 200
Assertion: Ribosomes are found in both prokaryote and eukaryotes. Reason: Ribosomes are protein factories which is required for both types of cells.
Problem 201
Assertion: In lipid bilayer in membrane, lipid are arranged with polar head towards outer side and the hydrophobic tail towards the inner part Reason: This ensures that the nonpolar tail of saturated hydrocarbon is protected from aqueous environment.
Problem 202
Assertion: Integral proteins can't be extracted easily from plasma membrane Reason: Integral proteins are partially or totally embedded in the membrane.
Problem 203
Assertion: RER is rough. Reason: This endoplasmic reticulum bears ribosomes.
Problem 204
Assertion: Golgi apparatus remain in close association with the endoplasmic reticulum. Reason: Material to be packaged in form of vesicle from the ER fuse with the cis face of the Golgi apparatus and move towards maturing face.
Problem 205
Assertion: Lysosomes are capable of digesting carbohydrate, protein, lipids and nucleic acids. Reason: Lysosomes contain almost all type of hydrolytic enzymes.
Problem 206
Assertion: Some ion concentration is higher in the vacuole than in the cytoplasm of plant cell. Reason: In the plant tonoplast facilitate the transport of some ions against concentration gradient into the vacuole.
Problem 207
Assertion: Chloroplast can synthesize proteins Reason: Chloroplast contains ribosomes.
Problem 208
Assertion: Ribosomes were discovered after discovery of electron microscope. Reason: Ribosomes can be observed by electron-microscope.
