Autumn Leaves (Biology Review)
Passage
•
Biology
•
12th Grade
•
Medium
Standards-aligned

Seran Bradley
Used 11+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which pigment is responsible for the red/purple color in some autumn leaves?
Chlorophyll
Carotenoids
Anthocyanins
Phytochrome
Tags
Remembering
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which type of climate do evergreen trees thrive according to the passage?
Temperate
Boreal
Desert
Arctic
Tags
Understanding
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main factor affecting autumn senescence according to the passage?
Daylength
Temperature
Humidity
Soil nutrients
Tags
Remembering
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
The abscission layer forms at the point where each leaf meets the ___.
Tags
Applying
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do carotenoids play in leaves during autumn?
They absorb sunlight for photosynthesis
They protect chlorophyll from sunlight damage
They store nutrients for winter
They cause leaves to fall off
Tags
Applying
6.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
The process of breaking down leaf contents and storing nutrients before shedding is known as autumn ___.
Tags
Understanding
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
During autumn, some photosynthesis-related genes are ___ in deciduous plants.
Tags
Understanding
8.
OPEN ENDED QUESTION
5 mins • 1 pt
What is a transcription factor?
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Answer explanation
A transcription factor is a protein that controls gene expression by binding to specific DNA sequences, called promoter regions, to either initiate or inhibit the transcription of a gene into messenger RNA (mRNA). These proteins act as regulators, with activators promoting gene expression and repressors inhibiting it, allowing cells to respond to environmental cues and hormonal signals.
9.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Which type of separation technique could help identify the different pigments in leaves?
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