•  The cell is a functional unit of living organisms because

A) multicellular organisms are made up of cells

B) all cells in a multicellular organism function as a single cell

C) the function of a multicellular organism is the sum total of the functions of its constituent cells

D) the function of a single cell is superior to that of the multicellular organism

E) the cells of a multicelullar organism are similar in structure

• The organelle which eliminate water from the body of protozoa is

A) plasma membrane

B) contractile vacuole

C) cell wall

D) protoplasm

E) nucleus

•  Spirogyra is regarded as a multicellular plant because

A) its cells are linked together by cytoplasmic strands

B) its cells are joined to form organs

C) the cylindrical cells are linked end to end

D) the filaments consist of one cell only

E) it is an algea containing large vacuoles

•  The mechanism of gaseous exchange in living organisms is essentially by

A) osmosis

B) inhalation

C) diffusion

D) exhalation

E) breathing

• Which of the following statement is correct about diffusion?

A) it involves movement of water molecules only

B) Molecules move from a region of higher concentration to a region of lower concentration

C) differentially permeable membrane must be present for diffusion to occur

D) It involves when a solute can no longer dissolve in a solvent of only solute molecules into the Bowman’s capsule

E) It occurs when a solute can no longer dissolve in a solvent

• Which of the following food substances is digested in the stomach?

A) Carbohydrate

B) Fats and oil

C) Fats and proteins

D) Proteins

E) Carbohydrates and fats

• The conversion of excess amino acids into urea occurs in the

A) Kidney

B) pancreas

C) villi

D) liver

E) spleen

•  For pollination and fruit formation, the essential part(s) of the flower should be the

A) corolla

B) ovary

C) pistil(gynoecium)

D) ovules

E) receptacle

• Which one of the following parts of the mammalian body is most closely associated with the production of urine?

A) Malpighian capsule

B) Urinary bladder

C) Ureter

D) Vas deferens

E) Urethra

• A potometer is used to determine the rate at which a shoot

A) respires

B) sucks air bubbles

C) loses weight

D) absorbs water

E) transpires

•  A green plant growing in a compost pit is feeding

A) holozoically

B) parasitically

C) saprophytically

D) holophytically

E) in none of the above ways

• The part of the cell solely responsible for respiration is the

A) nucleus

B) nucleolus

C) mitochondria

D) golgi apparatus

E) endoplasmic reticulum

• In anaerobic respiration, glucose is converted to one of the following

A) Carbon dioxide and water

B) Carbon dioxide only

C) Carbon dioxide and alcohol

D) Alcohol and water

E) water and acetic acid

• During excretion of urea there is also a corresponding re-absorption of water into the blood. This re-absorption takes place in the

A) uriniferous 

C) glomerulus

D) malpighian capsule

E) renal artery

• If the bark and phloem tissue of a woody shoot are peeled off by ringing, the whole plant will eventually die because

A) water does not reach the leaves

B) water and salts remained below the ring portion

C) there is a withdrawal of water from the root by soil

D) manufactured food does not reach the roots

E) the roots store too much water

•  The process of anearobic respiration of yeast in sugar solution is known as

A) oxidation

B) fermentation

C) tissue respiration

D) alcohol production

E) decomposition

• The following are functions of the skeleton except

A) providing support for the body

B) protection of delicate internal organs

C) maintenance of the shape of the body

D) providing attachment for muscles

E) controlling growth rate in animals

• Muscles are attached to bones by means of

A) ligament

B) cartilage

C) synovial membrane

D) tendons

E) connective tissue

• Which of the following tissues is not found in the stem and root of monocotyledons?

A) Xylem

B) Cambium

C) Pith

D) Cortex

E) Pericycle

• The pulmonary vein carries

A) oxygenated blood from right ventricles to the lungs

B) oxygenated blood from lungs to the left auricle

C) deoxygenated blood from the lungs

D) oxygenated blood from lungs to the right auricle

E) deoxygenated blood from the right ventricle to the lungs