Answers posted by suganyadevi.p

0 votes

compaction of chromosomes occurs during ____ stage of meiosis

answered Nov 23, 2016

Ans: (A) leptotene

0 votes

the proteinaceous components of the cell that aid in cell division are called

answered Nov 23, 2016

Ans: (C) microtubules

0 votes

The chromosomes are best visualised in ___

answered Nov 23, 2016

Ans: (A) Metaphase

0 votes

Stages of mitosis in order: a. prophase b. anaphase c. metaphase d. telophase

answered Nov 23, 2016

Ans: (D) a,c,b,d

0 votes

Actin filaments and microtubules share all of the following properties except

answered Nov 23, 2016

Ans: ( A ) they are assembled from subunits that are heterodimers

0 votes

In the G1 phase of cell cycle: a. cell is metabolically active b. cell is undergoing DNA replication c. no. of chromosome doubles d. Amount of DNA doubles

answered Nov 23, 2016

Ans: (A) a only

0 votes

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

answered Nov 23, 2016

Ans: ( A ) golgi complex

0 votes

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

answered Nov 23, 2016

Ans: ( B ) telomeres

0 votes

___ is the precursor for cell wall in a plant cell

answered Nov 23, 2016

Ans: (C) Cell Plate

0 votes

plant cells show mitosis in

answered Nov 23, 2016

Ans: (D) haploid and diploid cells

0 votes

Nuclear division is also called

answered Nov 23, 2016

Ans: (C) karyokinesis

0 votes

cell division in humans approximately occurs every __

answered Nov 23, 2016

Ans: (B) 24 hrs

0 votes

The process of genome duplication to cell consistituent synthesis to cell division is called

answered Nov 23, 2016

Ans: (C) Cell cycle

0 votes

Amino acids are linked by a ___ bond while the monosaccharides are held by ___ bond

answered Nov 23, 2016

Ans: (D) peptide,glycosidic

0 votes

Competitive inhibitor of succinate dehydrogenase is ___

answered Nov 23, 2016

Ans: (D) succinate

0 votes

The activity of enzyme depends on

answered Nov 23, 2016

Ans: (D) All the above

0 votes

nucleic acids that behave like enzymes are called

answered Nov 23, 2016

Ans: (B) ribozymes

0 votes

Biosynthetic pathways are ___ while degradative pathways are ___

answered Nov 23, 2016

Ans: (D) anabolic, catabolic

0 votes

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

answered Nov 23, 2016

Ans: (C) TetrapyrolesTetrapyrroles are a class of chemical compounds whose molecules contain four py...

0 votes

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

answered Nov 23, 2016

Ans: (A) Negative

0 votes

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

answered Nov 23, 2016

Ans: ( C ) Lactate dehydrogenase

0 votes

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

answered Nov 23, 2016

Ans: ( A ) primary structure of protein

0 votes

An enzyme that catalyzes the reaction, AB changes the

answered Nov 23, 2016

Ans: ( B ) rate of both forward and reverse reactions

0 votes

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

answered Nov 23, 2016

Ans: ( D ) inner mitochondrial membrane

0 votes

Enzymes that catalyse removal of groups from substrates by mechanisms other than hydrolysis are

answered Nov 23, 2016

Ans: (C) Lyases

0 votes

The inhibitor that resembles the substrate in its structure is called

answered Nov 23, 2016

Ans: (D) competitve inhibitor

0 votes

All enzymes enhance the rate of the reaction by

answered Nov 23, 2016

Ans: (C) reducing the activation energy

0 votes

The differnce in the average energy content of the substrate from the that transition state is called

answered Nov 23, 2016

Ans: (B) Activation Energy

0 votes

The catalytic site in an enzyme is called ___

answered Nov 23, 2016

Ans: (B) Active site

0 votes

____ is called the energy currency of the living systems

answered Nov 23, 2016

Ans: (D) ATP

0 votes

Anabolic pathways___ while catabolic pathways__

answered Nov 23, 2016

Ans: (A) consume energy, release energy

0 votes

Proteins that catalyse biological reactions are called

answered Nov 23, 2016

Ans: (B) Enzymes

0 votes

A and T are linked by __ hydrogen bonds and G and C have ___ Hydrogen bonds between them

answered Nov 23, 2016

Ans: (C) 2, 3

0 votes

The backbone of the DNA is made of

answered Nov 23, 2016

Ans: (B) sugar and phosphate

0 votes

In a nucleic acid, bond between the phosphate and hydroxyl group of sugar is a/an ___ bond

answered Nov 23, 2016

Ans: (A) Ester

0 votes

Adult Hemoglobin has ____ subunits

answered Nov 23, 2016

Ans: (D) 4 sub units

0 votes

protein helices are ___

answered Nov 23, 2016

Ans: (B) right handed

0 votes

nitrogenous base+ sugar=____ and nitrogenous base + sugar+ phopsphate=______

answered Nov 23, 2016

Ans: (B) nucleoside, nucleotide

0 votes

adenine, guanine are ____ while cytosine, thymine and uracil are ___

answered Nov 23, 2016

Ans: (C) purines, pyramidines

0 votes

What percentage of the cellular mass is water

answered Nov 22, 2016

Ans: (d) 70- 90%

0 votes

_____ is not an example of secondary metabolite

answered Nov 22, 2016

Ans: (C) UridineIt is a nucleoside found in RNA

0 votes

cytidine is a

answered Nov 22, 2016

Ans: (B) NucleosideNitrogenous base + Sugar --> Nucleoside

0 votes

which of the following is not an aromatic amino acid

answered Nov 22, 2016

Ans: (A) Proline

0 votes

Amino acids are substituted on the ____ carbon

answered Nov 22, 2016

Ans: (C) Alpha

0 votes

In the golgi complex, the cis-is the _______ face while the trans is ______face. a.forming,maturing b. convex,concave c.maturing , forming d.concave,convex

answered Nov 22, 2016

Ans: (A) Forming, maturing

0 votes

Match the following: 1. Passive transport--a. Energy independent transport 2. Activ e transport--b. Energy dependent transport 3. Osmosis-- c. movement of water from higher to lower solute concentration 4. Diffusion---d. movement of neutral solutes from region of their higher to lower concentration ---e. movement of neutral solutes from region of their lower to higher concentration

answered Nov 22, 2016

Ans: (B) 1-a,2-b,3-c, 4-d,

0 votes

Mycoplasma is placed in

answered Nov 22, 2016

Ans: (D) Both are correct

0 votes

Mycoplasma: Assertion (A): Mycoplasma can pass through bacterial filters Reason (R): Due to their plasticity Regarding (A) and (R):

answered Nov 22, 2016

Ans: (D) Both A and R are correct & R is the correct explanation for A

0 votes

Bacteria and yeasts store glucose as polysaccharide called

answered Nov 22, 2016

Ans : ( C ) dextran

0 votes

Epithelial tissues perform the following functions

answered Nov 22, 2016

(D) Is the right answerEpithelial cells are involved in sensation, secretion and absorption

Ask Questions, Get Answers