Plant Nutrition and Tests Quiz

A chemical test used to identify the presence of proteins in a sample.

A chemical test used to detect the presence of reducing sugars, such as glucose and fructose.

A substance that can be oxidized by another compound, often a sugar.

A chemical element essential for chlorophyll formation in plants.

A chemical element essential for functioning of respiratory enzymes in plants.

Nitrogen is a key nutrient needed for plants to build proteins, which are essential for growth.

A lack of nitrogen in the soil will result in stunted growth and pale green leaves.

Phosphate is a mineral crucial for plants to produce energy, which fuels their growth and development.

Plants deficient in Phosphate will exhibit weak stems and roots, affecting their overall growth.

Magnesium is a vital mineral for plants, helping them produce chlorophyll, the green pigment used to capture sunlight for energy.

Photosynthesis, the process of converting light energy into chemical energy, takes place within these specialized organelles.

These organelles, found in plant cells, are responsible for storing pigments and food.

The process of synthesizing organic matter, specifically sugars, from inorganic matter like water and mineral salts using light.

A chemical test used to detect the presence of starch in a sample. A blue-black color indicates a positive result.

These are specialized plastids that store pigments, giving plants their vibrant colors.

These colorless plastids lack pigments and are involved in storing food in non-photosynthetic tissues like roots and bulbs.

Light is essential for starch production during photosynthesis.

A prediction or proposed explanation for a phenomenon. It must be testable.

They are responsible for synthesizing and storing pigments, giving plants their colors, often found in flowers and fruits.

A specific question that guides an investigation or experiment. It should be clear and focused.

A chemical test used to detect the presence of carbon dioxide gas. Clear limewater turns cloudy when it reacts with carbon dioxide.

Heating water in a closed container produces water vapor, which condenses on the cooler surfaces of the container, forming droplets of liquid water. This indicates the presence of water vapor.

When organic materials like plants are heated strongly, the organic matter breaks down and releases carbon, leaving behind a black, carbon-rich residue.

The black residue formed after heating plants contains carbon, which is a key element in organic matter.

A type of plastid specialized in storing starch.

A type of plastid specialized in storing lipids.

These pigments are stored inside vacuoles and are not found in plastids. They are water-soluble.

These pigments are found in plastids and are essential for photosynthesis. They are not water-soluble.

Chloroplasts are the sites of photosynthesis in plants. They contain chlorophyll, the green pigment that absorbs sunlight.

A scientific experiment where all factors are kept the same except one, allowing researchers to isolate the impact of that specific factor on the outcome.

A factor that is changed or manipulated during an experiment to see its effect on the other factor.

Factors that are kept consistent throughout an experiment, ensuring that only the variable being studied affects the outcome.

The process by which plants convert light energy into chemical energy in the form of ATP and NADPH, which are used to power the Calvin cycle.

The series of reactions that use ATP and NADPH generated in the light reactions to convert carbon dioxide into glucose, the primary food source for plants.

Oxygen is released by plants during photosynthesis as a byproduct of the splitting of water molecules.

Plants absorb carbon dioxide from the atmosphere to use as a carbon source for building sugars during photosynthesis.

Photosynthesis is the process by which plants use light energy to create glucose from carbon dioxide and water. This process is the foundation of most life on Earth.

Cresol red is a pH indicator that turns red in basic conditions (lack of CO₂), indicating photosynthesis due to CO₂ consumption by the plant. It turns yellow in acidic conditions (presence of CO₂), indicating respiration.

Phenolphthalein is a pH indicator. It is colorless in acidic conditions (presence of CO₂) and turns pink in basic conditions (lack of CO₂), indicating photosynthesis due to CO₂ consumption.

Plants, like all living organisms, respire (breathe) and produce carbon dioxide (CO₂) as a byproduct. This CO₂ accumulates in the medium, making it acidic.

During photosynthesis, plants take in carbon dioxide (CO₂) from the surrounding medium. This CO₂ is consumed and used to build sugars, making the medium less acidic.

The changing color of pH indicators, such as Cresol red or Phenolphthalein, signals whether photosynthesis or respiration is predominant in a plant.