Botany: Cell the unit of life

Glycocalyx, Cell wall, Plasma membrane

What are the 3 layered structure of prokaryotes

Polysaccharides but may contain proteins too

What is the capsule and slime layer made up of?

Chromatophores

What other membraneous structure are found in cyanobacteria and purple bacteria

Mesosome

What membranous structure is found in gram positive bacteria

Vesicles, tubules and lamellae

What extensions does mesosome have

Gram negative bacteria

True pilin is found in which type of bacteria

Pilin

What type of protein is found in pili

50 and 30 S subunit; 70 S type

What are the subunits and unit found in Ribosomes of prokaryotes

Blue-green algae, purple and photosynthetic bacteria

Gas vacuoles are found in what bacteria

Phosphate granules, cyanophycean granules and glycogen granules

Where are inclusion bodies found

poly-beta-hydroxybutyrate granules, Sulphur granules and gas vacuoles

What inclusion bodies are surrounded by non unit membrane

80 S

What are the unit found in Ribosomes of eukaryote

70 S

What are the unit found in mitochondria and plastids

52% lipids and 40% proteins

In human RBC what is the percentage of the protein and lipids

Singer and Nicolson; Fluid Mosaic Mode

Who proposed an improved model of cell membrane and what was it named

LAteral movement of proteins and lipids

What did the fluid mosaic model propose?

Chitin, a polymer of N-acetylglucosmaine(NAG) units

What is the fungal cell wall made up of?

Cellulose, galactans, mannans and minerals like calcium carbonate

What is the Algal cell wall made up of?

insoluble pollysaccharides, hemicellulose, pectin and proteins

What is the Plant cell wall made up of?

Calcium and magnesium pectate

What is the middle lamellae made up of

Meristematic and parenchymatous cells

What cells have only primary cell wall

60 S

What type of unit is present in cisternae

Lipids and sterol

What do tubules synthesize

Vesicles

What is the only ER structure found in spermatocytes

What types of pr

1.Detoxification of drugs

2.Associated with muscle contraction by release of and uptake of Ca2+

3.specialised in the synthesis of lipids and sterols

What are the functions of SER

Mature seive tubes

Gologi apparatus is seen everywhere except for in

Trans face

From which “face” of the golgi is stuff released

Glycoproteins and glycolipids

Golgi apparatus is important site for formation of

Inactive enzyme

What type of enzyme do Primary lysosome have

Tonoplast

What is the vacoule membrane called

40% lipid and 60% proteins

What is the outer membrane of the mitochondria made up of?

80% protein and 20% lipids and is rich in cardiolipins

What is the inner membrane of the mitochondria made up of?

70S ribososmes, dsDNA molecule, enzymes for TCA and components required for synthesis of proteins

What is the matrix of the mitochondria made up of

Amyloplast: Starch containing

Elaioplast :Store fats and oils

Aleuroplast :Store proteins

What are the three types of leucoplast

Granum is absent

What is absent in leucoplast

70S

What type of ribosome is present in chloroplast

Synthesis of carbs and proteins. It also contains dsDNA and ribososmes

Stroma of chloroplast contains enzymees required for

MG+2 ions

Which is the ion due to which eh ribosomes are connected

60:40

The ribosomes are made of ribonucleoproteins in teh ratio (for 70S)

40:60

The ribosomes are made of ribonucleoproteins in teh ratio (for 80S)

1. 30S smaller subunit: 21 proteins and 16S rRNA

2. 50S larger subunit: 34 proteins and 23S and 5S rRNa

What does the 70S ribosome contain

1. 40S smaller subunit: 33 proteins and 18 S rRNA

2. 60S larger subunit: 40 protein molecules and 28S,5.8S and 5S rRNA

What does the 80S ribosome contain

13 parallel protofilaments

What is the boundary of the microtubules made up of

alpha and beta subunit of tubulin protein

What is each protofilament made up of

1. Helps in spindle and astral rays formation during spindle formation

2. Form cytoskeleton of cilia and flagella

What are the functions of microtubules