Question # 1

The optimum pH of enzyme pepsin is

Choose an answer

2

6.8

7

9

Chemical nature of most cellular secretions is.

Choose an answer

Proteins

Lipids

Glyco proteins

Carbohydrates

Which of the following is a protein

Choose an answer

Cellulose

Cholesterol

ATP

Insulin

Which structure of bacteria help in DNA replication.

Choose an answer

Plasmid

Mesosomas

cyst

Nucleoid

Which one of the following is true about chloroplast

Choose an answer

Found in underground parts of plants

Help in pollination and dispersal of seeds

Self replicating organelles

Involve in protein synthesis

A group of living organisms of the same species located in the same place and time is called.

Choose an answer

Community

Population

Induvial

Biome

Chimpanzee had the chromosomes

Choose an answer

48

46

36

12

The sexual process exhibited by most ciliates is called

Choose an answer

Oogamy

Binary fission

Conjugation

Fertilization

During breathing no stale of air remains in the lungs of.

Choose an answer

Mammals

Amphibian

Birds

Sarracenia

In annelids the organs for excretion are

Choose an answer

Flame cells

Nephridia

Protonephridia

Kidneys

A structure within a cell that perform specific function is called

Choose an answer

Molecule

Atom

Organelle

Element

Repeating units of DNA are called.

Choose an answer

Histones

Nucleosides

Nucleotides

Amino acids

During which stage chromosomes are doubling

Choose an answer

G2 Phase

G1 phase

S-Phase

G0 Phase

In the double helix of DNA adenine forms two hydrogen bonds with

Choose an answer

Thymine

Guanine

Cytosine

Uracil

Which of the following is a 'start' codon

Choose an answer

AUG

UAG

UAA

UGA

In Meselson ansd stahl experiment, the DNA from sample at 20 minutes, after centrifugatioon it made sediments at the :

Choose an answer

Top

Bottom

Intermediate

Top & intermediate

The funnction of the tubules in muscle contraction is to:

Choose an answer

Make and store glycogen

Release Ca⁺²into the cell interior and then pick it up again

Make the action potential deep into the muscle cells:

To hamper the nerve impulse

The word tropic is derived from greek word 'tropos' meaning.

Choose an answer

Sticky

Turn

Attractive

Growth

Maximum speed of nerve impulse transmission is

Choose an answer

100 m/s

110 m/s

120 m/s

130 m/s

Alzheimer's disease is characterized by the decline in the function of.

Choose an answer

Brain

Kidney

Liver

Stomach

The study of hman populations and things that affect them is called:

Choose an answer

Angiography

Demography

Mammography

Homography

In the zone of elongation, the volume of the cells increase upto.

Choose an answer

100 times

150 times

200 times

250 times

More Classes

Other Links

Biology Life Science Test Medium Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer