Biology 2010 | Study Mode

Join Discuss Share to WhatsApp

Question 11

Circulation of blood to all parts of the body except the lungs is through

the pulmonary artery

systemic circulation

the lympahatic system

pulmonary circulation

Explanation

Explanation not provided, please join discuss, your contributions are welcomed

Correct option: B

Join Discuss Share to WhatsApp

Question 12

Yeast respires anaerobically to convert simple sugar to carbon (IV) oxide and

alcohol

acid

oxygen

water

Explanation

Explanation not provided, please join discuss, your contributions are welcomed

Correct option: A

Join Discuss Share to WhatsApp

Question 13

The sheet of muscle that separates the thoracic and the abdominal cavities is the

diaphragm

intercostal muscle

pleural memberane

pericardium

Explanation

Explanation not provided, please join discuss, your contributions are welcomed

Correct option: A

Join Discuss Share to WhatsApp

Question 14

The oily substance that lubricates the mammalian hair to keep it flexible and water repellent is secreted by the

sweet glands

sebaceous glands

fatty cells

granular layer

Explanation

Explanation not provided, please join discuss, your contributions are welcomed

Correct option: B

Join Discuss Share to WhatsApp

Question 15

The outer layer of the kidney where the Bowman's capsules are found is the

cortex

peivis

medulla

pyramid

Explanation

Each urinary tubule begins in the CORTEX as a cup-like structure known as the Bowman's capsule.

Correct option: A

Join Discuss Share to WhatsApp

Question 16

Which of the following stimuli is likely to elicit a nastic response in an organism?

Touch

Light intensity

Chemical substances

Gravity

Explanation

Nastic movements are non-directional responses to stimuli (e.g. temperature, humidity, light irradiance), and are usually associated with plants. The movement can be due to changes in turgor or changes in growth. Decrease in turgor pressure causes shrinkage while increase in turgor pressure brings about swelling

Correct option: B

Join Discuss Share to WhatsApp

Question 17

In the male reproductive system of a mammal, sperm is stored in the

van deferens

urethra

epididymis

seminiferous tubules

Explanation

Explanation not provided, please join discuss, your contributions are welcomed

Correct option: C

Join Discuss Share to WhatsApp

Question 18

Chemosynthetic organisms are capable of manufacturing their food from simple inorganic substances through the process of

oxidation

denitrification

reduction

phosphorylation

Explanation

In biochemistry, chemosynthesis is the biological conversion of one or more carbon molecules (usually carbon dioxide or methane) and nutrients into organic matter using the oxidation of inorganic (e.g. hydrogen gas, hydrogen sulfide) or methane as a source of energy, rather than sunlight, as in photosynthesis.

Correct option: A

Join Discuss Share to WhatsApp

Question 19

The part of the human gut that has an acidic content is the

stomach

duodenum

ileum

colon

Explanation

Explanation not provided, please join discuss, your contributions are welcomed

Correct option: A

Join Discuss Share to WhatsApp

Question 20

I. Stomata Spirogyro II. Alveoli Earthworm III. Malpighian tubule Mammal IV. Contractile vacuole Protozoa.
Which of the above structures is correctly matched with the organisms in which it is found?

lll