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1.1 The study of life Read Online
Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.
Chapter 31: Soil and Plant Nutrition MCQ Multiple Choices Questions Quiz Test Bank
31.1 Nutritional Requirements of Plants
31.2 The Soil
31.3 Nutritional Adaptations of Plants
Download MCQ Quiz PDF eBook
Question: Through mycorrhization, a plant obtains important nutrients such as ________.
Choices:
phosphorus, zinc, and copper
phosphorus, zinc, and calcium
nickel, calcium, and zinc
all of the above
Question: For an element to be regarded as essential, all of the following criteria must be met, except:
Choices:
No other element can perform the function.
The element is directly involved in plant nutrition.
The element is inorganic.
The plant cannot complete its lifecycle without the element.
Question: A soil consists of layers called ________ that taken together are called a ________.
Choices:
soil profiles : horizon
horizons : soil profile
horizons : humus
humus : soil profile
Question: Most ________ are necessary for enzyme function.
Choices:
micronutrients
macronutrients
biomolecules
essential nutrients
Question: What is the term used to describe the solid rock that lies beneath the soil?
Choices:
sand
bedrock
clay
loam
Question: Which process produces an inorganic compound that plants can easily use?
Choices:
photosynthesis
nitrogen fixation
mycorrhization
Calvin cycle
Question: The nutrient that is part of carbohydrates, proteins, and nucleic acids, and that forms biomolecules, is ________.
Choices:
nitrogen
carbon
magnesium
iron
Question: Soil particles that are 0.1 to 2 mm in diameter are called ________.
Choices:
sand
silt
clay
loam
Question: Which factors affect soil quality?
Choices:
chemical composition
history of the soil
presence of living organisms and topography
all of the above
Question: What term describes a plant that requires nutrition from a living host plant?
Choices:
parasite
saprophyte
epiphyte
insectivorous
Question: What is the main water source for land plants?
Choices:
rain
soil
biomolecules
essential nutrients
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