JAMB Biology Past Questions & Answers - Page 412

2,056.

Which of the following is not an excretory organ in animals?

A.

Lungs

B.

Kidney

C.

Leaf

D.

Large intestine

E.

 Skin

Correct answer is C

Organs of excretion make up the excretory system. They include the kidneys, large intestine, liver, skin, and lungs. The kidneys filter blood and form urine. They are part of the urinary system, which also includes the ureters, bladder, and urethra.

2,057.

Which of these statement below is not a characteristic of wind pollinated flower?

A.

Stigmas are usually large and feathery

B.

Nectar is usually absent

C.

The pollen grains have rough spiny surfaces

D.

The flowers are not scented

E.

The pollen is light and smooth

Correct answer is C

No explanation has been provided for this answer.

2,058.

The region of cell division in a root is

A.

Root cap

B.

Endodermis

C.

Xylem

D.

Piliferous layer

E.

Meristem

Correct answer is E

No explanation has been provided for this answer.

2,059.

Which of these is not an enzyme?

A.

Pepsin

B.

Gastrin

C.

Amylase

D.

Chymotrypsin

E.

Trypsin

Correct answer is B

Gastrin is a hormone that is produced by 'G' cells in the lining of the stomach and upper small intestine, and released into the blood circulation.

2,060.

Which one of the following option is not true for mucor of Rhizophus? it

A.

Grows on moist dead organic matter

B.

Is a plant

C.

Has cellulose cell-wall

D.

Reproduce asexually by producing a spore

E.

Has no chlorophyll

Correct answer is C

No explanation has been provided for this answer.