Recent questions tagged cell structure and function

Which of the following is highly soluble in water and solvated entirely by hydrogen bonding ?

asked Apr 3, 2014 by pady_1

0 answers

During cytokinesis in plant cells, the cell plate is formed by the fusion of vesicles derived from which of the following ?

asked Apr 3, 2014 by pady_1

1 answer

Which of the following pairs of compounds are interconvertible in the liver by a single polypeptide chain containing two different catalytic sites ?

asked Apr 3, 2014 by pady_1

1 answer

Actin filaments and microtubules share all of the following properties except

asked Apr 3, 2014 by pady_1

1 answer

the specialized structures located at the ends of eukaryotic chromosomes are called

asked Apr 3, 2014 by pady_1

1 answer

In which of the following process, type-B cyclin proteins are not required ?

asked Apr 3, 2014 by pady_1

1 answer

The rate limiting step of fatty acid synthesis is catalyzed by

asked Apr 3, 2014 by pady_1

1 answer

Eukaryotic ribosome has a sedimentation coefficient of 80S with subunits of _______.

asked Apr 3, 2014 by pady_1

0 answers

Which enzyme is able to degrade cellulose that are absent in mammals but are produced by some bacteria, fungi and protozoa ?

asked Apr 3, 2014 by pady_1

1 answer

Which genetic disease is caused by an inability to convert galactose to glucose ?

asked Apr 3, 2014 by pady_1

1 answer

Sucrose is (a) non reducing sugar and (b) disaccharide.

asked Apr 3, 2014 by pady_1

0 answers

In glycolysis, glucose is phosphorylated by ATP to form glucose 6-phosphate and ADP. This reaction is catalyzed by which enzyme ?

asked Apr 3, 2014 by pady_1

1 answer

Starch is the mixture of two polysaccharide forms called

asked Apr 3, 2014 by pady_1

1 answer

Which bond is formed between the anomeric carbon of the sugar and a nitrogen atom of the base of an ATP molecule ?

asked Apr 3, 2014 by pady_1

0 answers

D-glucose and D-galactose differ only in their configuration at C-4, thus called

asked Apr 3, 2014 by pady_1

0 answers

Fluid mosaic model of biological membranes was proposed by

asked Apr 3, 2014 by pady_1

0 answers

Which bond between the carbon and nitrogen exhibits partial double bond character ?

asked Apr 3, 2014 by pady_1

0 answers

Which of the oxygen-binding protein stores the oxygen in the muscles ?

asked Apr 3, 2014 by pady_1

0 answers

Disorders like porphyrias occur due to

asked Apr 3, 2014 by pady_1

1 answer

Hemes and chlorophylls are both members of the family of pigments called

asked Apr 3, 2014 by pady_1

1 answer

In fireflies, the generation of a light flash requires activation of luciferin by an enzymatic reaction involving pyrophosphate cleavage of which molecule to form luciferyl adenylate ?

asked Apr 3, 2014 by pady_1

1 answer

Flavoproteins in cryptochromes and photolyases also serve as

asked Apr 3, 2014 by pady_1

0 answers

NAD and NADP are bound to dehydrogenases in a widely conserved structural motif called the

asked Apr 3, 2014 by pady_1

0 answers

If equilibrium constant K'eq of a given chemical reaction is 1.0, the standard free energy change G' o of that reaction is

asked Apr 3, 2014 by pady_1

0 answers

The free-energy change G, a spontaneously reacting system is always

asked Apr 3, 2014 by pady_1

1 answer

Katal (kat) is the unit of

asked Apr 3, 2014 by pady_1

1 answer

Pyruvate produced by glycolysis in muscle is converted to lactate by which enzyme ?

asked Apr 3, 2014 by pady_1

1 answer

The disorder, alkaptonuria is caused by the absence of which enzyme ?

asked Apr 3, 2014 by pady_1

1 answer

Very low density lipoproteins (VLDLs) transport endogenous triacylglycerols and cholesterol from

asked Apr 3, 2014 by pady_1

0 answers

Apoptosis or programmed cell death, is executed by a group of proteases called

asked Apr 3, 2014 by pady_1

1 answer

Name the coenzyme for pantothenic acid and its deficiency disease

asked Apr 3, 2014 by pady_1

0 answers

One collagen deficiency disease, that occurs due deficiency in lysyl oxidase and results in hypermobile joints and hyperextensibility of the skin is

asked Apr 3, 2014 by pady_1

1 answer

The linear sequence of amino acids joined together by peptide bonds is termed as the

asked Apr 3, 2014 by pady_1

1 answer

Membrane and secretory proteins are sorted and packaged in which part of the cell before they are secreted ?

asked Apr 3, 2014 by pady_1

1 answer

Diacylglycerol activates which of the following enzyme ?

asked Apr 3, 2014 by pady_1

1 answer

An enzyme that catalyzes the reaction, AB changes the

asked Apr 3, 2014 by pady_1

1 answer

During oxidative phosphorylation in mitochondria which of the following takes place ?

asked Apr 3, 2014 by pady_1

0 answers

ATP synthase that carries out the synthesis of ATP is located in _______ .

asked Apr 3, 2014 by pady_1

1 answer

In the first step of fatty acid biosynthesis, the carboxylation of acetyl CoA to fom malonyl CoA is catalyzed by the enzyme acetyl CoA carboxylase, that has _______ as a cofactor.

asked Apr 3, 2014 by pady_1

0 answers

Regarding Cell Envelope : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

1 answer

Regarding size of cells : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

1 answer

Describe A and B :

asked Mar 24, 2014 by pady_1

0 answers

which of the following is true? Mitosis a. is associated with cell repair b. occurs in the apical and lateral cambium of a plant c. functions to restore the nuclear-cytoplasmic ratio d. it occurs during gametogenesis in both plants and animals

asked Mar 24, 2014 by pady_1

1 answer

During a cell division ___ takes place

asked Mar 24, 2014 by pady_1

1 answer

protein helices are ___

asked Mar 24, 2014 by pady_1

1 answer

Amino acids are substituted on the ____ carbon

asked Mar 24, 2014 by pady_1

1 answer

ribosomes in prokaryotes are associated with

asked Mar 24, 2014 by pady_1

0 answers

1. Mycoplasma are a group of fungus. 2. They are devoid of cell walls 3. They are highly pleomorphic, with fixed shape and size.

asked Mar 20, 2014 by pady_1

1 answer

1. Bacteria show a range in the number and arrangement of flagella. 2. Bacterial flagellum is composed of three parts – filament, hook and basal body. 3. The filament is the longest portion and extends from the cell surface to the outside. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

1 answer

Which of the following statements is true about Glycocalyx?

asked Mar 20, 2014 by pady_1

1 answer

Ask Questions, Get Answers