DELSU Biology 2021/2022 Past Questions

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

Which of the following parts of a cell is living?

A.cell wall
B.calcium oxalate
C.food vacuole
D.mitochondria

Cells without an organized nucleus are called

A.heterokaryote
B.eukaryote
C.Prokaryote
D.Synkaryote

The sites for energy transfer within a cell are known as

A.Golgi apparatus
B.Parenchyma
C.mitochondria
D.nucleolus

The pigment in the Malpighian layer responsible for skin colouration is

A.haemoglobin
B.haornocyanin
C.chlorocruorin
D.melanin

Coordination is achieved in the body of mammals through the action of the

A.endocrine and nervous systems
B.skeletal and nervous systems
C.muscular and nervous systems.
D.circulatory and nervous systems

Which of the following statements is correct of hormones? Hormones are

A.secreted into the blood through ducts
B.secreted directly into the blood stream
C.chemical substances in the blood stream
D.non-specific in their mode of operation

From the following list of type of mutation, identify the one that is hereditary:

A.genetic mutation
B.somatic mutation
C.germinal mutation
D.gametic mutation

Which of these would be a limiting factor in photosynthesis

A.O₂
B.CO₂
C.Chlorophyll
D.light

In a cell digestive enzymes mostly occur in

A.ribosome
B.lysosome
C.mitochondria
D.plastids

Which of these types of skeleton is most appropriate to the cockroach

A.hydrostatic skeleton
B.exoskeleton
C.endoskeleton
D.cartilaginous skeleton

The anal and dorsal fins of fish are used for:

A.steering
B.buoyancy
C.upward movement
D.controlling rolling movement
E.downward movement