Question # 1

Daily rhythmic opening and closing of stomata is.

Choose an answer

Internal clock

External clock

Both internal and external clock

None of these

African sleeping sickness is caused by

Choose an answer

Entamoeba

Trypanosoma

Pelomyxa

Stentor

Hemoglobin Molecule in most cases, does not have beta chain in it, instead F chain is present in

Choose an answer

Oedema

Lecuaemia

Thalasemia

Anaemia

Energy poor inorganic oxidized compounds are reduced to energy rich carbohydrates during.

Choose an answer

Respiration

Photosynthesis

Growth

Development

The optimum pH of salivary amylase is.

Choose an answer

2.80

4.80

6.80

8.80

Length of the duodenum is.

Choose an answer

15-20 cm

20-25 cm

30-35 cm

10-15 cm

The animals which eat both plants and animals are called.

Choose an answer

Herbivores

Carnivores

Omnivores

Filter feeders

The kingdom protista contain ...... major groups of eukaryotic organisms

Choose an answer

Three

Four

Five

Two

When deprived of oxygen, yeast cells obtain energy by fermentation, producing carbon dioxide, ATP, and

Choose an answer

Acetyl CoA

Ethyl alcohol

Lactate

Pyruvate

Water is more viscous than air.

Choose an answer

10 times

20 times

50 times

100 times

The specific heat of vaporization of water is.

Choose an answer

457 kcal/kg

574 kcl/kg

580 kcal/kg

570 kcal/kg

The leaves with very small surface area, are found in.

Choose an answer

Hydrophytes

Xerophytes

Sciophytes

Mesophytes

Pathway of passage of impulse during reflex action is called.

Choose an answer

Reflex

Reflex arc

Stimulus

Membrane potential

Histones are positively charged due to an abundance of the basic amino acids

Choose an answer

Arginine

Lysine

Both a & c

Alanine

MN blood group is example of

Choose an answer

Complete dominance

Co- dominance

Over dominance

Incomplete dominance

Monqolism is the other name of.

Choose an answer

Mongolism

Kline felter syndrome

Down's syndrome

Turner's syndrome

The sites where nerve impulse is transmitted from the nerve endings to the skeleton muscle cell membranes are the:

Choose an answer

Neucromuscular junctions

Sarcomeres

Myofilaments

Z discs

Neural plate is formed from

Choose an answer

Ectoderm

Endoderm

Mesoderm

Notochord

Alpha cells of pancreas secrete

Choose an answer

Insulin

Glucagon

Secretin

Pancreatic juice

An ordered sequence of irrversible steps with each step setting up the necessary conditions for the next step is

Choose an answer

Embryology

Growth

Development

None of these

Genes are located at specific loci on

Choose an answer

Chromatids

Chromosomes

Centromeres

Homologues

Which hormone induces labour pain

Choose an answer

LTH

LH

Oxytocirl

Lactogen

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