Flashcards in Final Deck (43):
What is the common word for secondary xylem?
Width of tree rings are affected by...
Increasing global temperature
What water pathway goes through the cell wall only and is "easy"?
What water pathway goes through the cytosol only and is "easy"?
What water pathway goes through only cytosol and cell walls, but has difficulty going through lipid bilayers?
Both ___ and ___ concentration affect water potential
Why do stomata close at night?
To preserve water
Cells have to be alive to perform water bulk flow. True or false?
In the fall, the chlorophyll ___, which makes the variety of colour in leaves
In prokaryotes, photosynthesis is performed where?
What are the 3 basic steps of photosynthesis?
Photochemistry, Electron transfer, Incorporation of CO2 into carbs
Name 2 characteristics of plants grown in a shaded environment.
An organism with a varying body temperature is called a ____.
An organism with a stable body temperature is called a ____.
When does shivering happen?
When blood vessels in the skin constrict
When does sweating happen?
When blood vessels in the skin dilate
What is the word for adjusting to changing temperatures?
A chloroplast has an envelope of 2 membranes surrounding a dense fluid called the ____.
In a plant, carbon dioxide enters the leaf and oxygen exits, but way of microscopic pores called ____.
How many hydrogen bonds does Guanine share with Cytosine?
How many hydrogen bonds does Adenine share with Thymine?
What are the name of the enzymes that untwist the double helix for replication?
_______ helps relieve the strain of the twisting by breaking, swivelling, and rejoining DNA strands.
DNA polymerases can add nucleotides only to the _' end of a primer or growing DNA strand.
What enzyme joins the sugar-phosphate backbones of all the Okazaki fragments into a continuous DNA strand?
Where are telomeres located and what is their purpose?
End of DNA
Protect organism's genes
Is DNA negatively or positively charged?
5' end starts with a _____, and the 3' end starts with a _____.
DNA wrapped around histones, forming bead-like structures, are called what?
In what phase does DNA replication occur? And where in the cell?
In nucleus, mitochondria, and chloroplasts
What is transcription?
Synthesis of RNA using information in the DNA (DNA to RNA)
What is translation?
Synthesis of polypeptide using information in mRNA (mRNA to protein)
Codon to mRNA is the same as anticodon to ____.
What is the basis for the difference in how the leading and lagging strands of DNA molecules are synthesized?
DNA polymerase can join new nucleotides only to the 3' end of a growing strand
What is photophosphorylation?
Synthesis of ATP using light in chloroplasts
Glucose in fruit is stored in the ____, and it can regulate ____ ____.
Vacuole, Water intake
What is the difference between the arrangements of the veins in monocots and eudicots?
Monocots have parallel major veins
Eudicots have a branched network of major veins
A plant's outer protective coating is....
Dermal tissue layer
In plants, ____ conducts water and dissolved minerals upward from roots into the shoots (how hot water moves through a straw).
In plants, ____ transports sugars from where they are made to where they are needed.
What is the function of a root cap?
Protects and releases polysaccharides so the root can push through the soil easier
Where can you only find root hairs?
Zone of differentiation