PHA 048 - LAS 7 Quiz
Question 1
Which part of the leaf connects the blade to the stem?
Midrib
Petiole
Vein
Leaf base
Question 2
The main function of the palisade mesophyll is:
Gas exchange
Transport of nutrients
Photosynthesis
Protection from water loss
Question 3
Which of the following leaves has parallel venation?
Guava
Rose
Banana
Hibiscus
Question 4
The cuticle on the leaf primarily functions to:
Transport minerals
Minimize water loss
Capture sunlight
Allow gas exchange
Question 5
Which statement correctly describes monocot and dicot leaves?
Dicot leaves have parallel venation
Monocot leaves are broad and varied
Monocot leaves usually have equal stomata on both sides
Dicot leaves are narrow and elongated
Question 6
The stomata are most abundant on which part of a dicot leaf?
Upper surface
Lower surface
Both surfaces equally
Petiole
Question 7
The midrib of a leaf mainly functions to:
Control gas exchange
Support the leaf and distribute veins
Produce chlorophyll
Store water
Question 8
Which factor reduces transpiration rate?
High temperature
Low humidity
High wind speed
High humidity
Question 9
A desert plant has small, needle-like leaves. This adaptation is primarily to:
Increase surface area for photosynthesis
Reduce water loss
Capture more COâ‚‚
Strengthen the stem
Question 10
If the spongy mesophyll were absent, which process would be most affected?
Photosynthesis
Gas exchange
Water transport
Sugar formation
Question 11
Why might a tropical rainforest plant have large, broad leaves?
To store water
To reduce transpiration
To capture maximum light under dense canopy
To prevent fungal growth
Question 12
If stomata remained open during drought, what would most likely happen?
The plant would photosynthesize faster
The plant would lose excess water and wilt
Transpiration rate would decrease
Guard cells would absorb water
Question 13
A student observes that a leaf has a reticulate venation and broad lamina. To which group does it most likely belong?
Monocot
Dicot
Bryophyte
Gymnosperm
Question 14
In a plant with thick, waxy leaves and few stomata, which environment is it most adapted to?
Rainforest
Desert
Swamp
Alpine forest
Question 15
You are studying a new species with leaves that have parallel veins, no petiole, and equal stomata distribution. What can you conclude about the plant?
It’s a dicot plant
It’s a monocot plant
It’s a xerophyte dicot
It’s a mesophytic dicot