BUK Biology 2015/2016 Past Questions

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

Which of the following is a tissue

A.volvox
B.chlamydomonas
C.epidermis
D.paramecium

Which of the following phenomena affects plant growth in an alkaline soil?

A.excessive plasmolysis
B.excessive transpiration
C.excessive sunlight
D.poor damage

Which of the following is the function of the iris of the mammalian eye

A.closes and opens the eye
B.absorbs dangerous rays from sunlight
C.regulate the amount of light entering the eye
D.bringing light rays to focus on the retina

Placentation of plant is best described as the

A.arrangement of ovules in the ovary
B.arrangement of fruits in the branches
C.development of ovules in the ovary
D.formation of the pericarp from the ovary wall

A flowering plant having both the male and female flowers on the same plant is said to be

A.regular
B.monoecious
C.irregular
D.dioecious

In the test for starch the leaf is first placed in boiling water to

A.remove the chlorophyll
B.dissolve the waxy cuticle
C.kill and make the leaf permeable
D.turn it to blue black

Which of the following statement about water in humans is not correct? it:

A.plays an important role in temperature regulation
B.acts as solvent for substances
C.plays a role in the formation of vitamin D
D.is needed for many life processes

Which of the following groups embraces the rest

A.class
B.kingdom
C.phylum
D.species

The group molusca is characterized by the presence of

A.jointed appendages
B.star shaped bodies
C.backbones
D.soft non segmented bodies

A virus can sometimes be regarded as a living organism because it

A.causes diseases in plants and animals
B.exists in a variety of shapes
C.reproduces in living cells
D.is easily visible with the aid of an electron microscope

A major difference between plants and animals is that

A.there is free movement in animals while this is limited in plants
B.there is indefinite growth in animals only
C.animals consume inorganic materials as food while plants consume organic materials
D.animals give off carbon dioxide as a waste product of respiration while plants do not

Which of the following adaptations is not found in fruits and seeds dispersed by the wind?

A.small and light body
B.spongy coats
C.turfs of hair
D.wings and pericarp

The main similarity between unicellular and multicellular organisms is that both

A.perform all life activities
B.exist as filaments
C.are plants
D.exists as colonies

One important characteristic of green plants is that they

A.possess specialized sense organs
B.are usually motile
C.are autotrophic
D.respond slowly to stimuli

A serious disadvantage of complexity in higher organisms is

A.high demand for food and energy
B.ability to function in many specialized roles
C.little amount of energy dissipated in functioning
D.specialization of parts of organisms