Lesson: Chapter - 9

Review Questions of Organic and Biochemistr

1. A disease that causes a defect in the myelin sheath would be dangerous because
(A) action potentials would be conducted too slowly along the neurons
(B) muscles would not contract when stimulated
(C) the thyroid gland would not be able to produce thyroxine
(D) bone tissue would not be properly maintained
(E) the body would not be able to fight disease
2. All of the following are considered to be endocrine glands EXCEPT
(A) the pituitary gland
(B) the thyroid gland
(C) the salivary glands
(D) the ovaries
(E) the adrenal glands
3. Which of the following statements are true?
  I. Arteries have muscular walls that can regulate the flow of blood passing through them.  II. Arteries contain valves that prevent the flow of blood in the wrong direction. III. Veins have muscular walls that can regulate the flow of blood passing through them.
(A) I only
(B) III only
(C) I and II only
(D) I and III only
(E) I, II, and III
4. What is the primary advantage of the four-chambered heart?
(A) It increases blood pressure.
(B) It pumps blood to the lungs more often, so blood is better oxygenated.
(C) It separates oxygenated and deoxygenated blood.
(D) It lowers blood pressure and the threat of heart attacks.
(E) It supplies the brain with more blood for cognition.
5. The respiratory system is important in obtaining oxygen for the tissues and
(A) regulating pH of the blood by controlling how much oxygen is dissolved in the plasma
(B) regulating pH of the blood by controlling how much carbon dioxide is dissolved in the plasma
(C) regulating blood pressure by releasing hormones from the lungs that control heart rate
(D) playing a role in regulating the level of cholesterol in the blood
(E) obtaining some nutrients, such as vitamin K, from the atmosphere when supplies are limited
6. After the ovarian follicle releases the mature ovum into the Fallopian tube, the follicle
(A) dissolves within the ovary, ceasing to produce estrogen
(B) remains in the ovary, producing estrogen until the end of the ovarian cycle
(C) forms the corpeus luteum and begins to produce progesterone
(D) begins to support another developing oocyte
(E) is shed from the ovary and released in the menstrual fluid
7. A man goes swimming in a pond. As he walks back to his car, he notices that several newly hatched ducklings are following his moves. This is an example of
(A) tropism
(B) conditioning
(C) sympathetic nervous system
(D) associative learning
(E) imprinting
8. The elimination of carbon dioxide from the body is completed by the
  I. circulatory system  II. respiratory system III. excretory system
(A) I only
(B) II only
(C) III only
(D) I and II only
(E) I, II, and III
9. Which of the following contains the highest concentration of chloroplasts?
(A) Stomata
(B) Epidermal layer
(C) Palisade mesophyll
(D) Phloem
(E) Cuticle
10. During photosynthesis, carbohydrates are made
(A) during the light reaction
(B) from oxygen, water, and a three-carbon molecule
(C) in the grana
(D) in the stroma
(E) in order to begin the light reaction
Back Next

Next to display next topic in the chapter.

Practice Questions

Test Prep Lessons With Video Lessons and Explained MCQ

Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.

Quantitative Aptitude Reasoning English General Knowledge Picture Patterns
More for You
MCQ with question Explanations Scholarships and Financial Aid

Sentence Correction Advance

Learn to crack Sentence Correction section of the test

Reading Comprehension

Reading Comprehension strategies with practice questions

Biology for Test Preparation

Prepare Biology for tests with lessons and practice mcq

All in this Category

You may be interested in

Colleges in cities of Punjab

Comprehensive lists of colleges in ...

Colleges in cities of Khyber Pakhtoonkhwa

Comprehensive lists of colleges in ...

Study in Canada

How to get opportunity to study in ...

Study in Germany

How you can get an opportunity to h ...

ISSB - G.T.O. Tasks

Learn all about to deal ISSB - G.T. ...

Pakistan Army Selection and Recruitment Tests

All about Pakistan Army Selection a ...

SAUT Sindh Agriculture University

A popular agri univerist in Sindh i ...

COMSATS - BBA Hons

COMSATS Institute of Information Te ...

About us

EntryTest.com is a test preparation service for students seeking successful career.

About Disclaimer

Quick Test Prep

NUST NET IBA Karachi SAT LUMS LCAT LSE

 

NTS GAT NTS NAT GMAT GRE ACT

Study Abroad

Education Abroad Business Schools MS in USA