PSS 3323 TTU Exam 1 Questions & Answers 2024/2025
Meristem - ANSWERSare the regions of plant growth and cell division and make new cells for P and S growth. (Primary growth increases the length of roots and shoots. Secondary growth increases the size/girth of woody stems and roots.)
Apical ...
Meristem - ANSWERSare the regions of plant growth and cell division and make new cells for P and S
growth. (Primary growth increases the length of roots and shoots. Secondary growth increases the
size/girth of woody stems and roots.)
Apical - ANSWERSAt the tips (apices; singular apex) of roots and stems. Often enclosed by leaves (shoot)
or protected by root cap (roots)
Axillary - ANSWERSLocated in leaf junctions, produce branches or flowers
Intercalary - ANSWERSLocated between less mature meristematic tissue and more mature M.T.
Lateral - ANSWERSForm a cylinder around stems and roots in woody plants; produce secondary growth
Ground Tissue - ANSWERSstandard plant tissue
Epidermal Tissue - ANSWERSOuter covering
Vascular Tissues - ANSWERSplumbing
Roots - ANSWERSanchor plant in soil, absorb water and nutrients, storage
Fibrous - ANSWERSMass of similarly sized roots
Taproot - ANSWERSprimary roots that grow longer and thicker than secondary roots. Some taproots are
carb storage organs
, Where are the zones of growth and water absorption for roots? - ANSWERS• Growth and Entrance of
water and minerals occurs behind the root tips (at or near root tips)
• Growth is region of elongation and region of differentiation
What type of cells are root hairs, and what role do they play? - ANSWERS- Thin walled elongated cells
•They make direct contact with the soil and are surfaces through which most of the water and mineral
elements enter the roots
Stems - ANSWERSprovide vascular connections (carbs and water) from roots to leaves and determine the
distribution of leaves.
stolons - ANSWERS-aboveground horizontal
rhizomes - ANSWERS-underground horizontal
tillers - ANSWERS-originate from axillary buds, twining shoots and tendrils
bulbs - ANSWERS-have compact unelongated stems with fleshy underground leaves,
petioles - ANSWERS-stalks that attach the stem and leaf.
What is a sessile leaf? - ANSWERS• Have no petiole.
Leaf adaptations to environment. - ANSWERS- Some plants have varying petiole lengths to maximize leaf
interception of light
• Pubescent leaves-reflect light, repel insects, decrease air movement and transpiration
• Decrease surface-volume ratio (succulents)
Which factor most affects crop development rate? - ANSWERStemperature
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Bensuda. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.56. You're not tied to anything after your purchase.
