Mitochondria is the power houses of the cell because

1. ATP is  synthesised here

2. ATP is consumed here

3. Asimmilatory power is consumed here

4. All of the above

Which of the following is  present in matrix of mitochondria

1. ribosomes

2. RNA

3. DNA

4. All of the above

Cristae is formed through

(1)infoldings of inner membrane

(2)infoldings of outer membrane

(3)through deposition of intracellular lipids

(4)All of the above

ETS takes place in which of the following compartment of mitochondria

1. inner compartment

2. outer compartment

3. matrix

4. Both A and C

The following are true about mitochondria except

(1) easily visualised under microscope without staining

(2) It’s number in the cell depends on the physiological activity of the cell

(3)It is highly variable in their shape and size

(4)Double membranous structure

Endoplasmic reticulumn bearing ribosomes on their surface is called

(1)Rough endoplasmic reticulumn

(2)Smooth endoplasmic reticulumn

(3)Lomasomes

(4)None of these

Which of the following is true about SER (smooth endoplasmic reticulum), except

1. Ribosomes are absent

2. Actively involved in protein synthesis

3. Steroidal hormone synthesis site

4. Both A and C

Which of the following is not a modification of endoplasmic reticulum

1. Sarcoplasmic reticulum

2. Nissl’s granules

3. myeloid bodies

4. None of these

Ergastoplasm is a modification of

1. RER

2. SER

3. GB

4. None of these

Plastids are present in

1. Plants

2. Euglenoides

3. Both A and B

4. all protists