Table of Contents
Life Processes MCQs
The basic processes that sustain life in living organisms are known as life processes. These processes include respiration, nutrition, transportation, metabolism, excretion, and reproduction. Mastering multiple choice questions (MCQs) on life processes is crucial for NEET exam preparation, as they help assess a student’s understanding of these fundamental concepts.
Life processes MCQs cover a wide range of topics, such as the characteristics that distinguish living things from non-living things, the modes of nutrition in different organisms, the sites of photosynthesis and respiration, and the mechanisms of transportation and excretion in plants and animals. Practicing these MCQs helps students develop problem-solving skills and familiarize themselves with the exam pattern.
By solving life processes MCQs for NEET, students can identify their strengths and weaknesses, allowing them to focus their study efforts accordingly. Regular practice of these MCQs, along with a thorough understanding of the concepts, can significantly improve a student’s performance in the NEET exam.
Life Processes MCQs with Answers
Here are the most important Life Processes MCQ questions and answers:
Which of the following is a life process?
- A) Photosynthesis
- B) Respiration
- C) Excretion
- D) All of the above
Answer: D) All of the above
In plants, the process of converting light energy into chemical energy is called:
- A) Respiration
- B) Photosynthesis
- C) Transpiration
- D) Fermentation
Answer: B) Photosynthesis
The primary site of respiration in eukaryotic cells is:
- A) Nucleus
- B) Ribosome
- C) Mitochondria
- D) Golgi apparatus
Answer: C) Mitochondria
Which of the following is NOT a component of blood?
- A) Plasma
- B) Red blood cells
- C) Neurons
- D) White blood cells
Answer: C) Neurons
The process of removing waste products from the body is known as:
- A) Digestion
- B) Excretion
- C) Respiration
- D) Circulation
Answer: B) Excretion
Which type of nutrition involves the ingestion of organic compounds?
- A) Autotrophic
- B) Heterotrophic
- C) Saprophytic
- D) Parasitic
Answer: B) Heterotrophic
In plants, water is primarily absorbed through:
- A) Leaves
- B) Stems
- C) Roots
- D) Flowers
Answer: C) Roots
The main purpose of photosynthesis is to:
- A) Produce oxygen
- B) Produce glucose
- C) Absorb carbon dioxide
- D) All of the above
Answer: D) All of the above
Which of the following organisms performs anaerobic respiration?
- A) Humans
- B) Yeast
- C) Plants
- D) All of the above
Answer: B) Yeast
The functional unit of the kidney is called:
- A) Neuron
- B) Alveolus
- C) Nephron
- D) Glomerulus
Answer: C) Nephron
Which gas is a byproduct of aerobic respiration?
- A) Oxygen
- B) Nitrogen
- C) Carbon dioxide
- D) Hydrogen
Answer: C) Carbon dioxide
In which part of the plant does photosynthesis primarily occur?
- A) Roots
- B) Stems
- C) Leaves
- D) Flowers
Answer: C) Leaves
The movement of substances across cell membranes without energy is called:
- A) Active transport
- B) Passive transport
- C) Endocytosis
- D) Exocytosis
Answer: B) Passive transport
Which of the following is a product of the Krebs cycle?
- A) Glucose
- B) ATP
- C) Oxygen
- D) Carbon monoxide
Answer: B) ATP
The process by which plants lose water vapor is called:
- A) Transpiration
- B) Respiration
- C) Evaporation
- D) Condensation
Answer: A) Transpiration
Which of the following is a characteristic of living organisms?
- A) Growth
- B) Reproduction
- C) Response to stimuli
- D) All of the above
Answer: D) All of the above
Which organ is primarily responsible for digestion and absorption of nutrients?
- A) Stomach
- B) Liver
- C) Small intestine
- D) Pancreas
- Answer: C) Small intestine
The primary function of red blood cells is to:
- A) Fight infection
- B) Carry oxygen
- C) Clot blood
- D) Transport nutrients
Answer: B) Carry oxygen
Which of the following processes occurs in the mitochondria?
- A) Glycolysis
- B) Krebs cycle
- C) Fermentation
- D) Photosynthesis
Answer: B) Krebs cycle
The primary role of chlorophyll in photosynthesis is to:
- A) Absorb carbon dioxide
- B) Absorb light energy
- C) Release oxygen
- D) Produce glucose
Answer: B) Absorb light energy
Which of the following is a method of asexual reproduction?
- A) Budding
- B) Fertilization
- C) Pollination
- D) Cross-fertilization
Answer: A) Budding
In humans, the process of breaking down food into smaller molecules is known as:
- A) Absorption
- B) Digestion
- C) Metabolism
- D) Respiration
Answer: B) Digestion
Which part of the plant is responsible for photosynthesis?
- A) Roots
- B) Stem
- C) Leaves
- D) Flowers
Answer: C) Leaves
Which of the following is not a function of the liver?
- A) Detoxification
- B) Bile production
- C) Blood filtration
- D) Oxygen transport
Answer: D) Oxygen transport
The process of converting glucose into energy in the absence of oxygen is called:
- A) Aerobic respiration
- B) Anaerobic respiration
- C) Photosynthesis
- D) Fermentation
Answer: B) Anaerobic respiration
Which of the following is a waste product of protein metabolism?
- A) Urea
- B) Glucose
- C) Lactic acid
- D) Ethanol
Answer: A) Urea
The primary function of the large intestine is to:
- A) Absorb nutrients
- B) Absorb water
- C) Digest food
- D) Produce enzymes
Answer: B) Absorb water
Which of the following processes is involved in the transport of water in plants?
- A) Transpiration
- B) Photosynthesis
- C) Respiration
- D) Digestion
Answer: A) Transpiration
The process of energy production in cells is known as:
- A) Metabolism
- B) Photosynthesis
- C) Respiration
- D) Digestion
Answer: C) Respiration
Which of the following is a type of passive transport?
- A) Exocytosis
- B) Active transport
- C) Osmosis
- D) Endocytosis
Answer: C) Osmosis
