Plant Nutrition and Photosynthesis Quiz

8 Questions

Match the following plant processes with their descriptions:

Photosynthesis = Process of manufacturing carbohydrates from raw materials using light energy Nutrition = Taking in useful substances for growth and development Chlorophyll = Green pigment inside a chloroplast molecule Glucose production = Conversion of light energy into chemical energy

Match the following components of photosynthesis with their roles:

Chloroplast = Location where photosynthesis takes place Enzymes = Aids in carbon combining with water during photosynthesis Light energy = Source of energy for the process of photosynthesis Carbon and water = Raw materials used to produce glucose in photosynthesis

Match the following parts of a chlorophyll molecule with their functions:

Chlorophyll molecule = Absorbs energy from sunlight Released energy = Used to make carbon combine with water Glucose = Contains energy from light Sunlight = Provides energy for the chlorophyll molecule

Match the following leaf parts with their functions:

Epidermis (upper) = Secretes a waxy substance called the Cuticle that covers the upper epidermis Epidermis (lower) = Has small openings called stomata Palisade Mesophyll Cells = Contains many Chloroplasts to carry out photosynthesis Spongy Mesophyll Cells = Have air spaces that facilitate the diffusion of Carbon dioxide through the cell wall and cell membrane of each cell

Match the following leaf adaptations with their functions:

Stem and Petiole = Exposes most of the leaf's surface to Sunlight and Air Large surface area = To expose the cells to the largest amount of Sunlight as possible Thin layered = Allows sunlight to reach all cells and Carbon Dioxide to diffuse in and Oxygen to diffuse out Palisade cells are arranged end on (vertically) = Keeps as few cell walls as possible between Sunlight and Chloroplasts

Match the following chlorophyll-related features with their functions:

Chloroplasts arranged broadside on (horizontally) = Exposes optimum amount of chlorophyll to Sunlight Chlorophyll present in cells in the Mesophyll layer = Absorbs energy from Sunlight so that Carbon Dioxide combines with Water No Chloroplasts in Epidermal layer = Allows Sunlight to reach cells in the mesophyll layer Chlorophyll arranged on flat membranes inside chloroplasts = Exposes maximum amount of chlorophyll to sunlight

Match the following transport vessels with their functions:

Xylem tube = Carries water to the Mesophyll Cells Phloem tube = Takes away substances that the leaf has made such as Sucrose

Match the following uses of Glucose in the Plant’s Nutrition with their notes:

Used for Energy = Energy can be released from glucose using Aerobic respiration Used to make Proteins = Nitrate molecules are mixed with glucose to form strands of amino acids which are bound into Proteins Used to make organic substances =

Study Notes

Plant Processes

Respiration: process of releasing energy from glucose
Photosynthesis: process of converting light energy into chemical energy

Components of Photosynthesis

Light-dependent reactions: produce ATP and NADPH
Light-independent reactions (Calvin cycle): produce glucose
Chlorophyll: absorbs light energy
Stomata: regulate CO2 and O2 exchange
Thylakoids: contain pigments, including chlorophyll

Chlorophyll Molecule

Head: contains magnesium ion, absorbs light energy
Tail: embedded in thylakoid membrane, anchors chlorophyll

Leaf Parts

Mesophyll: inner tissue where photosynthesis occurs
Cuticle: waxy outer layer, prevents water loss
Epidermis: outer layer, protects leaf from environment
Veins: xylem and phloem vessels, transport water and nutrients

Leaf Adaptations

Thick cuticle: reduces water loss in arid environments
Stomata: regulate CO2 and O2 exchange, conserve water
Waxy coatings: prevent water loss, reflect light

Chloroplasts: contain chlorophyll, site of photosynthesis
Fluorescence: energy released as light, indicates photosynthesis

Transport Vessels

Xylem: transports water and minerals from roots to leaves
Phloem: transports sugars, amino acids, and hormones throughout plant

Uses of Glucose in Plant Nutrition

Energy source: provides energy for plant growth and development
Building block: used to synthesize other organic molecules
Stored energy: stored in roots, stems, and leaves for later use