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Plant Biology Basics
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Plant Biology Basics
Anatomy of Root, Stem, & Leaves
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1
Question
What is the primary function of roots in plants?
Answer
Absorb water and nutrients.
2
Question
Why are root hairs important?
Answer
Increase surface area for absorption.
3
Question
Which layer covers the apical meristem of a root?
Answer
Root cap
4
Question
From which structure do lateral roots emerge?
Answer
Pericycle
5
Question
What is formed when a plant's nutrition is enhanced by a symbiotic relationship with soil bacteria?
Answer
Nodules
6
Question
What is the purpose of mycorrhiza in plants?
Answer
Enhanced nutrient absorption through fungi association.
7
Question
What mechanism results in plants increasing in height?
Answer
Primary growth at apical meristems
8
Question
Which feature is unique to monocot stems?
Answer
Vascular bundles are scattered throughout.
9
Question
What is an example of a stem in plants?
Answer
Ginger
10
Question
Which structure in leaves regulates gas exchange?
Answer
Stomata
11
Question
Where in the leaf are chloroplasts most abundant?
Answer
Mesophyll
12
Question
What is the main function of leaves?
Answer
Absorb sunlight for photosynthesis.
13
Question
What is the function of the cuticle on leaf surfaces?
Answer
Prevent water loss
14
Question
Which part of the leaf controls gas exchange and transpiration?
Answer
Stomata
15
Question
What is the term for the tissue in leaves that contains chloroplasts?
Answer
Mesophyll
16
Question
Which type of plant growth results in an increase in girth?
Answer
Secondary growth
17
Question
Which part of the plant contains the apical meristem responsible for lengthening the plant?
Answer
Tips of roots and shoots
18
Question
What is the main function of the stem?
Answer
Support and transport nutrients.
19
Question
What is the role of xylem in plants?
Answer
Transport water from roots to leaves.
20
Question
What do phloem cells transport?
Answer
Sugars and organic nutrients.
21
Question
Which growth process produces the thickening of stems and roots in woody plants?
Answer
Secondary growth involving lateral meristems.
22
Question
Which plant part is mainly responsible for photosynthesis?
Answer
Leaves
23
Question
What is the term for the main tissue in monocot stems where vascular bundles are scattered?
Answer
Ground tissue (parenchyma)
24
Question
Where do stomata primarily occur on the leaf?
Answer
Lower epidermis
25
Question
What is the function of the palisade mesophyll?
Answer
Main site of photosynthesis.
26
Question
Which process occurs in the spongy mesophyll to facilitate gas exchange?
Answer
Transpiration and gas diffusion.
27
Question
Which plant structure functions as a site of primary growth and increases the length of the plant?
Answer
Apical meristem
28
Question
Why are lateral roots important?
Answer
Increase water and nutrient absorption area.
29
Question
What is the role of endodermis in roots?
Answer
Selectively regulates mineral intake.
30
Question
In roots, what structure do plants use to anchor into the soil?
Answer
Root hairs and root cap