predicted essays Flashcards
1
Q
the importance of energy transfers
A
- light energy in LDR
- ATP transfer for cotransport pump important for respiration
- trophic levels
- receptors e.g. pacinian corpsule transfer energy for muscle contraction
2
Q
the importance of the control of processes in organisms
A
- transcriptional factors , formation of enzymes
- blood glucose control , glycolysis
- IAA , LDR
- control of water potential , BP and osmotic lysis
3
Q
importance of nucleic acids
A
- RNA and reverse transcriptase, HIV replication
- tRNA and rRNA , protein synthesis
- DNA structure , protecting against mutation
- DNA fragments for invivo , insulin to treat diabetes
4
Q
importance of concentration gradients
A
- maintaining a gradient in cotransport, glycolysis
- gas exchange in fish, oxygen final acceptor
- loop of henle, reabsorb water
- hydrostatic pressure gradient in phloem, organic substances converted to amino acids and used in translation
5
Q
importance of microorganisms
A
- phagocytes and pathogens , vaccinations
- bacteria in nitrogen cycle important as nitrates, aid LDR
- invivo cloning, insulin production to treat diabetics
- succession, pioneer species, change conditions to increase biodiversity
6
Q
importance of phosphate ions
A
- phospholipids cell membrane, cell integrity
- ATP active transport, maintains resting potential
- DNA + phosphodiester nackbone, protect against mutation
- rRNA and mRNA important for protein synthesis , enzymes
7
Q
importance of responding to changes in the environment
A
- phagocytes, protect against disease
- glucagon and insulin to maintain blood glucose, respiration
- IAA response to light , LDR
- taxes and kinesis maintain favourable environment, enzymes
8
Q
importance of receptors
A
- synapses , unidirectional
- pacinian corpuscle, muscle contraction
- control of heart rate chemioreceptors,
- insulin
- eyes
