BUK Biology 2014/2015 Past Questions

Practice each question, then open it to see the full details.

The main difference between Gram positive and Gram negative bacteria is

A.Cell membrane
B.Cell wall
C.Ribosome
D.Mitichondria

Lactase hydrolyses lactose into

A.Glucose
B.Glucose and galactose
C.Fructose
D.Glucose and fructose

When oxygen supply to the tissue is inadequate, the condition is

A.Dyspnea
B.Hypoxia
C.Asyphyxia
D.Apnea

Who wrote the famous book 'Origin of species'?

A.Lamarck
B.Darwin
C.De Vries
D.Mendel

A flower which can be divided into two equal halves by only one plane is

A.Zygomorphic
B.Actinomorphic
C.Regular
D.Perfect

Acid rain is caused by

A.NO₂
B.SO₂
C.SO₃
D.CO₂

A plant cell becomes turgid due to

A.Plasmolysis
B.Exosmosis
C.Endomosis
D.Electrolysis

Which function will be lost due to damage of the occipital hole

A.Hearing
B.Speech
C.Vision
D.Memory

Which of the following human cells do not contain mitochondria

A.Nerve cell
B.Red blood cell
C.Liver cell
D.White blood cell

A female anopheles mosquito can be recognised by

A.proboscis and palpi are long and more or less of equal length
B.proboscis long and palpi short
C.proboscis and palpi long
D.both proboscis an palpi are short

Pyramid of energy in ecosystem is

A.Always upright
B.Always inverted
C.Mostly upright
D.Mostly inverted

Which one of the following is mainly responsible for greenhouse effect

A.SO₂
B.CO₂
C.CO
D.O₂

Which stage of malaria parasite is infective to man

A.Gametocyte
B.Merozoite
C.Cryptomerozite
D.Sporozoite

Plants that grow in saline water are called

A.Halophytes
B.Hydrophytes
C.Mesophytes
D.Thallophytes

One of the following is not a function of bones

A.Place for muscles attachment
B.Protection of vital organs
C.Secretion of hormones for calcium regulation in blood vessels
D.Production of blood corpuscles

Photosynthesis takes place faster in

A.Yellow light
B.White light
C.Red light
D.Darkness

Ordinary table salt is sodium chloride. What is baking soda

A.Potassium Chloride
B.Potassium Carbonate
C.Potassium Hydroxide
D.Sodium Bicarbonate

Ozone hole refers to:

A.Hole in ozone layer
B.Decrease in ozone layer troposphere
C.Decrease in the thickness of the ozone layer in troposphere
D.Increase in the thickness of the ozone layer in troposphere

Pollination is best defined as

A.Transfer of pollen from anther to stigma
B.Germination of pollen grains
C.Growth of pollen tube in ovule
D.Visiting flowers by insects

Plants receive their nutrients mainly from

A.Chlorophyll
B.Atmosphere
C.Light
D.Soil

Most of your important crop plants come from the ....... family of plants

A.Grass
B.Orchid
C.Rose
D.Bromeliad

Which of the following organisms are multicellular

A.Euglena
B.Amoeba
C.Spirogyra
D.Chlamydomonas

Which of the following is instruments used in measuring atmospheric pressure

A.Barometer
B.Hydrometer
C.Hygrometer
D.Thermometer

An example of poikilothermic organism is

A.Bird
B.Lizard
C.Cockroach
D.Rabbit

The soil with the highest water retaining capacity is

A.Loamy soil
B.Clay soil
C.Sandy soil
D.Stoney soil