Cell: UOL BIOLOGY 11th Flashcards
(97 cards)
What are Unicellular Org.s Capable of?
- Independant Existance.
- Performing essential life processes.
When was Electron Microscope Invented?
1950s
Who invented Electron Microscope?
Knoll and Ruska
Term Plasma lemma was coined by :
1. Crammer
2. Dujardin
3. Purkinje
4. Plow E
- Plow E
Term Plasma Membrane was Coined :
1. Knoll And Ruska
2. Schleiden And Schwann
3. Crammer And Nageli
4. Singer And NIcoleson
- Crammer And Nageli
Ultra Structure of Plasma Membrane was studied in:
1. 1950
2. 1949
3. 1951
4. 1953
- 1951
the Best Model of PM was Proposed in the year :
1. 1969
2. 1972
3. 1978
4. 1974
- 1972
who proposed the Best Model of PM :
1. Crammer and Nageli
2. Knoll and Ruska
3. Marie and Linnaeus
4. Singer and Nicoleson
Etne Models mai Attension Singing karke mila jiski wajah se inko waha se Nicole dia.
- Singer and Nicoleson
Theodore Schwann Was an :
1. German Biologist
2. German Botanist
3. British Biologist
4. British Zoologist
- British Zoologist
When did Schleiden Observe that all plants were made out of cells :
1. 1839
2. 1838
3. 1836
4. 1837
- 1838
When did Schwann Observe that all animals were made out of cells :
1. 1839
2. 1838
3. 1836
4. 1837
- 1839
who proposed hypothesis that Outer PM and CW is Unique Feature of Animal and Plant Cells , Repectively :
1. Schwann
2. Schleiden
3. VIrchow
4. Schleiden & Schwann
- Schwann
When did Virchow Gave his Statement :
1. 1873
2. 1855
3. 1839
4. 1838
- 1855
What is an Exception to cell theory ?
Viruses
what is measured as Fluidity in Plasma Membrane?
the Qasi Fluid Nature of Lipid enables lateral movement of proteins within the overall bilayer. this ability to move within the membrane is measured as Fluidity
Non Membrane bound Orgemelles are ?
Ribosomes & Centrioles
Non Membrane bound Structure?
Inclusion Bodies
Ribosome is made of ?
rRNA and Proteins
where is Ribosome found in Cell?
- Plastid
- Mitochondria
- RER
Centrosome Helps in ?
Cell Division
only found in animals
Length of Mycoplasma?
0.3 um
Length of Bacteria :
1. 2-5 um
2. 3-5 um
3. 2-3 um
4. 1-2 um
- 3-5 um
What is radius of Erythrocytes ?
1. 7 um
2. 6 um
3. 3 um
4. 3.5 um
- 3.5 um
What is the ratio of size of typical eukaryote and prokaryote :
1. 10:1
2. 1:10
3. 20: 1
4. 20:1
- 10:1