Essential Nutrients
How many essential nutrients are required for plants to grow properly?
17
Soils contain both what two types of matter?
Organic and inorganic
Nutrients are taken up from the soil by which plant system?
Root system
What process moves nutrients in plants without using energy?
Diffusion
What is fertilizer?
A source of nutrients for plants
What are the three primary nutrients found in fertilizer?
Nitrogen, phosphorus, potassium
What are the inorganic components of soil?
Sand, silt, and clay
What characteristic of roots helps increase surface area for absorption?
Root hairs
What type of nutrient transport requires energy to occur?
Active transport
Yellowing leaves in the shape of a “V” indicate deficiency of what nutrient?
Nitrogen
What two elements are the only nutrients found in water?
Hydrogen and oxygen
From where do plants absorb the majority of their nutrients?
Soil
What are the two main types of roots?
Taproot and fibrous root system
What plant tissue moves water upward through the plant?
Xylem
Yellowing leaves with dead edges and poor disease resistance indicate deficiency of what nutrient?
Potassium
What elements in the atmosphere can be used by plants?
Carbon and oxygen
What term describes the ability of soil to transmit water throughout its depth?
Percolation
How does a taproot differ from a fibrous root system?
A taproot has one main root; fibrous roots have many small roots
What plant tissue moves sugars down through the plant?
Phloem
Purple leaves and stunted growth indicate deficiency of what nutrient?
Phosphorus
What are the three main sources of plant nutrients?
Air, water, and soil
What historical event resulted from farming soil after it became depleted?
The Dust Bowl
Why are root hairs important for plant survival?
They increase water and nutrient absorption
What human body system is most similar to xylem and phloem transport?
Circulatory system
What type of pollution comes from runoff rather than a single source?
Nonpoint source pollution