Life processes Flashcards
exams
What are the basic life processes in living organisms?
The basic life processes are nutrition, respiration, transport, excretion, growth, reproduction, and response to stimuli.
True or False: Nutrition is the process of obtaining food.
True
Fill in the blank: The process of converting food into energy is called __________.
respiration
What is the primary function of the circulatory system?
The primary function of the circulatory system is to transport nutrients, gases, hormones, and waste products throughout the body.
Which type of nutrition involves the ingestion of organic matter?
Heterotrophic nutrition
Multiple Choice: Which of the following is NOT a type of respiration? A) Aerobic B) Anaerobic C) Photosynthesis D) Fermentation
C) Photosynthesis
What is excretion?
Excretion is the process of removing waste products from the body.
True or False: Growth occurs only in multicellular organisms.
False
What is reproduction?
Reproduction is the biological process by which new individual organisms are produced.
Fill in the blank: The response of an organism to environmental changes is known as __________.
stimulus response
What are autotrophs?
Autotrophs are organisms that produce their own food through photosynthesis or chemosynthesis.
Multiple Choice: Which process is primarily responsible for gas exchange in organisms? A) Respiration B) Circulation C) Digestion D) Excretion
A) Respiration
What is the role of enzymes in digestion?
Enzymes speed up the chemical reactions that break down food into smaller, absorbable molecules.
True or False: All living organisms reproduce sexually.
False
What is the main difference between aerobic and anaerobic respiration?
Aerobic respiration requires oxygen, while anaerobic respiration occurs without oxygen.
Fill in the blank: The basic unit of life is the __________.
cell
What is photosynthesis?
Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.
Multiple Choice: Which of the following is a product of respiration? A) Oxygen B) Glucose C) Carbon Dioxide D) Water
C) Carbon Dioxide
What is a key characteristic of living organisms?
The ability to grow, reproduce, and respond to stimuli.
True or False: Excretion is necessary for maintaining homeostasis.
True
What is the process of transport in living organisms?
Transport is the movement of substances within an organism and between its cells.
Fill in the blank: Growth involves an increase in __________ and __________ of cells.
size, number
What are the two main types of reproduction?
Sexual and asexual reproduction.
Multiple Choice: Which of the following is a form of asexual reproduction? A) Binary fission B) Pollination C) Fertilization D) Mitosis
A) Binary fission
What is the function of the digestive system?
The digestive system breaks down food into nutrients that can be absorbed by the body.
True or False: All living organisms need energy to perform life processes.
True
What is the significance of homeostasis?
Homeostasis is crucial for maintaining stable internal conditions despite external changes.
Fill in the blank: The main organ involved in excretion in humans is the __________.
kidney
What is the role of the nervous system in life processes?
The nervous system coordinates the response of organisms to internal and external stimuli.
Multiple Choice: Which of the following is a form of transport in plants? A) Transpiration B) Respiration C) Excretion D) Digestion
A) Transpiration
What are the end products of photosynthesis?
Glucose and oxygen.
True or False: All cells in an organism perform the same functions.
False
What is cellular respiration?
Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.
Fill in the blank: The two main stages of cellular respiration are __________ and __________.
glycolysis, oxidative phosphorylation
What is the relationship between photosynthesis and respiration?
Photosynthesis produces oxygen and glucose, which are used in respiration to release energy.
Multiple Choice: Which process do plants use to make their food? A) Digestion B) Photosynthesis C) Respiration D) Fermentation
B) Photosynthesis
What is the role of chlorophyll in plants?
Chlorophyll absorbs sunlight and helps in the process of photosynthesis.
True or False: Asexual reproduction leads to genetic variation.
False
What is the primary purpose of reproduction in living organisms?
To ensure the continuation of the species.
Fill in the blank: The process by which water is lost from the surface of leaves is called __________.
transpiration
