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Glucose is taken back from glomerular filtrate through 

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Important Questions on Cell Membranes and Transport

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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Which one of the following is not applicable to RNA?
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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Identify the correct order of organization of genetic material from largest to smallest :
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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
If you suspect major deficiency of antibodies in a person, to which of the following would you like for confirmation evidence?
MEDIUM
Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
The molecular weight of E coil. DNA is 3.1×109 g/mol. The average molecular weight of the nucleotide pair is 660 g/mol and each nucleotide pair contributes to 0.34 nm to the length of DNA. The length of E coli DNA molecule will be approximately:
MEDIUM
Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Fertilization in humans is practically feasible only if:
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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Proteins P, Q, and R are associated with an intact organellar membrane in a cell. If the intact organelle is treated with a high ionic strength buffer, only protein R remained associated with the membrane fraction. Based on this, one could conclude that:
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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Chromatophores take part in:
HARD
Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Gene regulation governing lactose operon of E. coli that involves the lac I gene product is:
MEDIUM
Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Microtubules are the constituents of:
MEDIUM
Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes

Mitochondria and chloroplast are:

(i) Semi - autonomous organelles

(ii) Formed by the division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery

Which one of the following option is correct?

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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
The schematic below describes the states of the lac operon in the absence of lactose. Which ONE of the following happens when lactose is present in the cell?
Question Image
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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
In simple organisms, exchange of gases and excretion occurs through –
HARD
Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Nuclear envelope is a derivative of:
MEDIUM
Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Match the columns and identify the correct option.
 
  Column I   Column II
A Thylakoids (i) Disc-shaped sacs in Golgi apparatus
B Cristae (ii) Condensed structure of DNA
C Cisternae (iii) Flat membranous sacs in stroma
D Chromatin (iv) Infoldings in mitochondria
MEDIUM
Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
In sea urchin DNA, which is double-stranded, 17% of the bases were shown to be cytosine. What are the percentages of other three bases expected to be present in this DNA?
EASY
Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Which one of the following is not an inclusion body found in prokaryotes?
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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Select the correct matching in the following pairs:
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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
Root pressure is usually acidic because:
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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
The movement of molecules during diffusion can be described through all of the following except - 
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Biology>Cell Biology P1>Cell Membranes and Transport>Movement of Substances Across Membranes
The plasma membrane (pm) forms the boundary of lung cells. Which of the following statements is true for the pm?
A. Plasma membrane is a semipermeable membrane
B. Water moves across the pm by osmosis.
C. O2 and CO2 can cross the pm by diffusion.
D. Na+ and K+ ions can pass the pm by diffusion.