Biology, 2010, JAMB Exam, Exam, Paper 1 | Objectives

Paper Info

Year :

2010

Title :

Biology

Exam :

JAMB Exam

Paper 1 | Objectives

11 - 20 of 49 Questions

#	Question	Ans
11.	Circulation of blood to all parts of the body except the lungs is through? A. the pulmonary artery B. systemic circulation C. the lymphatic system D. pulmonary circulation Show Content Detailed Solution The systemic circulation is the part of the vascular system that carries blood from the left ventricle to organs and tissues of the body. Pulmonary circulation moves blood between the heart and the lungs. It transports deoxygenated blood to the lungs to absorb oxygen and release carbon dioxide. There is an explanation video available below.	B
12.	Yeast respires anaerobically to convert simple sugar to carbon (IV) oxide and? A. alcohol B. acid C. oxygen D. water Show Content Detailed Solution There is an explanation video available below.	A
13.	The sheet of muscle that separates the thoracic and the abdominal cavities is the? A. diaphragm B. intercostal muscle C. pleural memberane D. pericardium Show Content Detailed Solution There is an explanation video available below.	A
14.	The oily substance that lubricates the mammalian hair to keep it flexible and water repellent is secreted by the? A. sweat glands B. sebaceous glands C. fatty cells D. granular layer Show Content Detailed Solution The normal function of sebaceous glands is to produce and secrete sebum, a group of complex oils including triglycerides and fatty acid breakdown products, wax esters, squalene, cholesterol esters and cholesterol. Sebum lubricates the skin to protect against friction and makes it more impervious to moisture. There is an explanation video available below.	B
15.	The outer layer of the kidney where the Bowman's capsules are found is the? A. cortex B. pelvis C. medulla D. pyramid Show Content Detailed Solution Each urinary tubule begins in the CORTEX as a cup-like structure known as the Bowman's capsule. There is an explanation video available below.	A
16.	Which of the following stimuli is likely to elicit a nastic response in an organism? A. Wound lesion B. Light intensity C. Chemical substances D. Gravity Show Content Detailed Solution There is an explanation video available below.	B
17.	In the male reproductive system of a mammal, sperm is stored in the? A. van deferens B. urethra C. epididymis D. seminiferous tubules Show Content Detailed Solution There is an explanation video available below.	C
18.	Chemosynthetic organisms are capable of manufacturing their food from simple inorganic substances through the process of? A. oxidation B. denitrification C. reduction D. phosphorylation Show Content Detailed Solution 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. There is an explanation video available below.	A
19.	The part of the human gut that has an acidic content is the? A. stomach B. duodenum C. ileum D. colon Show Content Detailed Solution - The stomach is very acidic, with a pH of 3.5 or below, so it can break down food. There is an explanation video available below.	A
20.	I. Stomata → Spirogyra 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? A. lll B. ll C. l D. IV Show Content Detailed Solution Ameoba and paramecium are examples of Protozoa. An Ameoba gets rid of excess water that enters its cell by using a Contractile Vacoule. There is an explanation video available below.	D

11.	Circulation of blood to all parts of the body except the lungs is through? A. the pulmonary artery B. systemic circulation C. the lymphatic system D. pulmonary circulation Show Content Detailed Solution The systemic circulation is the part of the vascular system that carries blood from the left ventricle to organs and tissues of the body. Pulmonary circulation moves blood between the heart and the lungs. It transports deoxygenated blood to the lungs to absorb oxygen and release carbon dioxide. There is an explanation video available below.	B
12.	Yeast respires anaerobically to convert simple sugar to carbon (IV) oxide and? A. alcohol B. acid C. oxygen D. water Show Content Detailed Solution There is an explanation video available below.	A
13.	The sheet of muscle that separates the thoracic and the abdominal cavities is the? A. diaphragm B. intercostal muscle C. pleural memberane D. pericardium Show Content Detailed Solution There is an explanation video available below.	A
14.	The oily substance that lubricates the mammalian hair to keep it flexible and water repellent is secreted by the? A. sweat glands B. sebaceous glands C. fatty cells D. granular layer Show Content Detailed Solution The normal function of sebaceous glands is to produce and secrete sebum, a group of complex oils including triglycerides and fatty acid breakdown products, wax esters, squalene, cholesterol esters and cholesterol. Sebum lubricates the skin to protect against friction and makes it more impervious to moisture. There is an explanation video available below.	B
15.	The outer layer of the kidney where the Bowman's capsules are found is the? A. cortex B. pelvis C. medulla D. pyramid Show Content Detailed Solution Each urinary tubule begins in the CORTEX as a cup-like structure known as the Bowman's capsule. There is an explanation video available below.	A

16.	Which of the following stimuli is likely to elicit a nastic response in an organism? A. Wound lesion B. Light intensity C. Chemical substances D. Gravity Show Content Detailed Solution There is an explanation video available below.	B
17.	In the male reproductive system of a mammal, sperm is stored in the? A. van deferens B. urethra C. epididymis D. seminiferous tubules Show Content Detailed Solution There is an explanation video available below.	C
18.	Chemosynthetic organisms are capable of manufacturing their food from simple inorganic substances through the process of? A. oxidation B. denitrification C. reduction D. phosphorylation Show Content Detailed Solution 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. There is an explanation video available below.	A
19.	The part of the human gut that has an acidic content is the? A. stomach B. duodenum C. ileum D. colon Show Content Detailed Solution - The stomach is very acidic, with a pH of 3.5 or below, so it can break down food. There is an explanation video available below.	A
20.	I. Stomata → Spirogyra 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? A. lll B. ll C. l D. IV Show Content Detailed Solution Ameoba and paramecium are examples of Protozoa. An Ameoba gets rid of excess water that enters its cell by using a Contractile Vacoule. There is an explanation video available below.	D