Unit 9 - Quiz 3 Flashcards
Learn about the structure of a plant leaf and flower
Directions: True or false? If false, correct the statement.
Leaves vary in shapes and sizes.
True
What is the most important function of a leaf?
To make food through the process of photosynthesis
Leaf cells are arranged in ________, allowing the leaf to work _____________.
layers, efficiently
What layer of this leaf has been removed?
Upper epidermis
The __________ layer in a plant leaf is responsible for photosynthesis, containing ______________ that capture light energy and convert it into chemical.
palisade, chloroplasts
Directions: True or false? If false, correct the statement.
The palisade layer in a plant leaf is positioned just beneath the upper epidermis to maximize light absorption.
True
Palisade layer
The xylem and phloem are the two vascular tissue that run through the ______ layer.
spongy
There are a lot of loosely packed cells with _____ spaces in the spongy layer. These spaces allow for the exchange of gases, such as ________ and carbon dioxide, which are vital for photosynthesis and respiration in the plant.
air, oxygen
Spongy layer
What do guard cells and stomata do?
They regulate gas exchange and water loss in plants. The guard cells surround and control the opening and closing of the stomata, which are small pores near the lower epidermis of leaves.
Directions: True or false? If false, correct the statement.
The upper epidermis of leaves is usually not transparent.
False. The upper epidermis of leaves is usually transparent to allow light to penetrate and reach the paliside layer.
Possibility of being a bonus question.
Being as specific as possible, where does photosynthesis take place?
In the grana of the chloroplasts, which are found in the palisade layer
Flowers contain a plant’s _____________ organs, which are the stamen and the ________.
reproductive, pistil
Why do most flowers contain sweet scents and have bright colorings?
To attract bees for pollination
Directions: After being provided the definition, name the term.
The movement of pollen from the anther of one plant (male reproductive part) to the stigma of another (female reproductive part).
pollination
Directions: Answer the statement with the best available option.
Part of a flower eventually turns into a…
A. pistil
B. stamen
C. sepal
D. fruit
D. fruit
The stamen is the basic name for the male reproductive part of a flower. What two parts can the stamen be broken down into?
- The anther
- The filament
Fill in the blanks:
The ________ is the first part of the stamen. It is where the ________ is actually produced.
anther, pollen
What does the filament do in flowers?
It is the base of the stamen, and helps it stay upright
In a plant, the female pistil is more complicated than its male counterpart. How many different parts does it have?
four
The ________ is the receptive surface of a flower, where pollen grains land.
stigma
Possibility of being a bonus question.
The style is sometimes also called what?
The pollen tube
What is the main job of the style?
To connect the stigma to the ovary of a flower
List the two main actions that the ovary performs.
- The ovary contains one or more ovules, protecting and nourishing them.
- Once fertilization has taken place, the ovary develops into a fruit.
Pertaining to female plant structures, where are the eggs located?
Inside the ovules
After fertilization, the fertilized _____ within the ovule develops into an embryo. The ovule itself develops into a ______.
egg, seed
Directions: After being provided the role, name the plant part.
- Protects the flower during its bud stage
- Supports the petals
- Plays a role in attracting pollinators
sepal
What is the lowest (base) part of a flower stem?
The receptacle
