The main types of plastids are:
A. Chloroplasts
B. Chromoplasts
C. Leucoplasts
D. All a,b,c
Arif Khan
The biggest cell in the world is the egg of:
A. Ostrich
B. Kiwi
C. Turtle
D. Elephant
When and electron pair is shared between two atoms, the resultant bond is
A. Ionic bond
B. Peptide bond
C. Covalent bond
D. None of these
Mitochondrial matrix supports which of these processes
A. Krebs cycle
B. Anaerobic respiration
C. Amino acid metabolism
D. All of these
Glucose is synthesized in the:
A. The granum of chloroplast
B. The thylakoids of the chloroplast
C. The interregnum of the chloroplast
D. The stroma of the chloroplast
The proteins or enzymes which have to be transported out of the cell pass through the:
A. Endoplasmic reticulum
B. Golgi Complex
C. Vacuoles
D. Exocytosis
The source of illumination in a typical laboratory microscope is
A. Visible light
B. Beam of electrons
C. Beam of photons
D. The beam of blue and red light
The movement of material across a selectively permeable membrane can take place by
A. Passive transport
B. Active transport
C. None of these
D. Both a and b
Crossing over and the random assortment of chromosomes are tow significant happenings of
A. Mitosis
B. Amitosis
C. Meiosis
D. All a, b, c
Each centriole contains:
A. 27 microtubules
B. 6 microtubules
C. 9 microtubules
D. 10 microtubules