arrow_backBack to Study Resources

Quiz Chapter 1: Introduction to Biology and Laboratory Rules

10 questions · Form 4 Biology Bab 1: Introduction to Biology and Laboratory Rules

Question 1 of 10Score: 0

A researcher is studying the molecular structure and chemical processes within plant cells. Which two biological fields are being applied?

Full Question List & Answer Key

Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.

1. A researcher is studying the molecular structure and chemical processes within plant cells. Which two biological fields are being applied?

  1. A. Zoology and Ecology
  2. B. Botany and Biochemistry
  3. C. Genetics and Anatomy
  4. D. Microbiology and Physiology
Show answer

Answer: B

Botany deals with plant life, while biochemistry focuses on chemical processes within cells.

2. Which personal protective equipment (PPE) is essential to prevent biohazardous liquid splashes from reaching the eyes?

  1. A. Lab coat
  2. B. Safety goggles
  3. C. Face mask
  4. D. Nitrile gloves
Show answer

Answer: B

Safety goggles shield eyes from direct liquid splashes, chemical hazards, and biohazardous materials.

3. In a scientific experiment, what is the variable that is intentionally changed or manipulated by the investigator?

  1. A. Responding variable
  2. B. Fixed variable
  3. C. Controlled variable
  4. D. Manipulated variable
Show answer

Answer: D

The manipulated variable is the specific factor adjusted by the researcher to test a hypothesis.

4. Why are open-toed sandals strictly prohibited inside a biology laboratory?

  1. A. They reduce walking speed during emergency evacuation
  2. B. They do not protect feet from chemical spills and dropped glassware
  3. C. They generate static electricity that ignites gas burners
  4. D. They interfere with maintaining clean room humidity
Show answer

Answer: B

Enclosed footwear shields feet against falling equipment, broken glass, and corrosive or biohazardous liquid spills.

5. What is the key difference between a Fume Hood and a Laminar Flow Cabinet?

  1. A. Fume Hoods protect the worker from fumes; Laminar Flow Cabinets protect samples from contamination.
  2. B. Fume Hoods heat samples; Laminar Flow Cabinets freeze samples.
  3. C. Fume Hoods are used for animal dissections; Laminar Flow Cabinets are used for sharp tools.
  4. D. Fume Hoods discard solid waste; Laminar Flow Cabinets recycle plastic waste.
Show answer

Answer: A

Fume Hoods protect the user from volatile chemicals, while Laminar Flow Cabinets provide sterile filtered air to protect samples from airborne contamination.

6. Which equipment should be used to protect the user from handling volatile, toxic chemical fumes in a biology lab?

  1. A. Fume hood
  2. B. Laminar flow cabinet
  3. C. Biological safety cabinet
  4. D. Safety shower
Show answer

Answer: A

A fume hood expels harmful chemical fumes and volatile vapors away from the laboratory environment.

7. Formulating a testable statement that explains an observed biological phenomenon is known as:

  1. A. Formulating a hypothesis
  2. B. Writing a conclusion
  3. C. Data analysis
  4. D. Problem identification
Show answer

Answer: A

A hypothesis is a proposed, testable explanation for a scientific question or observation.

8. Which temperature and pressure settings are standard for autoclaving Category B biological waste?

  1. A. 100°C at 5 psi for 30 minutes
  2. B. 150°C at 20 psi for 5 minutes
  3. C. 121°C at 15 psi for 15 minutes
  4. D. 80°C at 10 psi for 60 minutes
Show answer

Answer: C

Standard autoclave conditions for sterilization of biohazard waste are 121°C at 15 psi pressure for 15 minutes.

9. Which biological discipline focuses on the study of inheritance, DNA structure, and variations in organisms?

  1. A. Taxonomy
  2. B. Genetics
  3. C. Histology
  4. D. Morphology
Show answer

Answer: B

Genetics is the branch of biology concerned with genes, heredity, and genetic variation.

10. Which field of biology specifically studies the interactions between living organisms and their environment?

  1. A. Ecology
  2. B. Physiology
  3. C. Anatomy
  4. D. Genetics
Show answer

Answer: A

Ecology is the study of interactions between living organisms and their biotic and abiotic environment.

Sponsored