All Flashcards
Why is the cell membrane called “semi-permeable”?
It is permeable to small and uncharged (or unpolar) molecules
Which organelle is responsible for lipid production and metabolism?
Smooth endoplasmic reticulum
How is a peptide hormone able to get its signal into a cell?
It binds to surface receptors on the cell
allosteric question here
yeah
Which similarity exists between matter and energy?
Both are transformable
What waste product is given off during cell respiration?
Carbon dioxide
At the end of the Krebs cycle, which product is regenerated?
Oxaloacetate
Photosynthesis is a ___ reaction because it requires energy, while cell respiration is a ___ reaction because energy is released from the reaction.
- endergonic
2. exergonic
In oxygenic photosynthesis, the electron transport chain is ____.
Non-cyclical
What are the roles of chlorophyll A and B in photosynthesis?
Chlorophyll A is the primary pigment (boss bitch) while B is an accessory pigment (subordinate) that passes on its captured sunlight to A.
Starch is important in photosynthesis because it _____.
stores used energy
Light-dependent reactions occur in the ____, while the dark reactions occur in the _____.
- thylakoid
2. stroma
What two molecules that are made in the light-dependent phase in photosynthesis are needed for the next phase?
ATP and NADPH
What helix form can RNA adopt but DNA can’t?
A
What happens during telophase of mtisosis?
Membranes form around the new nuclei
A point mutation occurs where?
In a single base pair
Why can a gene mutation cause different phenotypes in different people?
The level of gene expression affects how mildly or severe a phenotype is expressed
How is “survival of the fittest” observed in sickle cell anemia?
CARRIERS of sickle cell anemia are resistant to malaria
What are the two reactions and the two products of cellular respiration?
The two reactants: glucose and oxygen
The two products: carbon dioxide and water
What are the 6 products of glycolysis?
2 pyruvate
2 ATP
2 NADH
What are the 7 products for ONE CYCLE of the Krebs Cycle? (Breaks down half a glucose molecule)
1 ATP
1 FADH
2 Carbon
3 NADH
Meiosis ____ ploidy
reduces
How many STOP codons are in the genetic code?
3
