IGCSE Biology Paper-1: Specimen Questions with Answers 56 - 59 of 208

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Passage

Study the diagram below and answer the questions.

Diagram of Urinary System

Question 56 (1 of 2 Based on Passage)

Question

MCQ▾

In upper diagram what is c?

Choices

Choice (4)

a.

Renal artery

b.

Ureter

c.

Urinary bladder

d.

Urethra

Answer

c.

Explanation

urinary bladder is the short-term stock house of urine which gets emptied by urethra.

Question 57 (2 of 2 Based on Passage)

Question

MCQ▾

The diagram shows structures associated with the human urinary system. Which structure is the ureter?

Choices

Choice (4)

a.

a

b.

b

c.

d

d.

c

Answer

b.

Explanation

ureter is present in a pair. These are narrow, thick walled muscular tubes which convey urine from kidney to the urinary bladder.

Question 58

Question

MCQ▾

In this figure placenta is connected with body via?

Diagram of Placental Attachment

Choices

Choice (4)

a.

Fetal blood vessels

b.

Umbilical cord

c.

fetus

d.

Question does not provide sufficient data or is vague

Answer

b.

Explanation

The umbilical cord links a baby in the womb to its mother. It runs from an opening in infant՚s stomach to the placenta . The average umbilical cord is about 20 inches long.

Question 59

Question

MCQ▾

What is the main source of gas exchange in annelids (class polychaeta) ?

Choices

Choice (4)

a.

Lungs

b.

Stomata

c.

Gills

d.

Alveoli

Answer

c.

Explanation

Water like annelids in class Polychaeta, have gills to breathe. Some annelids use their skin to exchange gas. They get oxygen from the land and release CO2 from their skins. After getting oxygen, they exchange gas in their body by circulatory system. So their skins need to keep wet to make gas exchange possibly.

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