1418061
Description
Flashcards by mikeychapman, updated more than 1 year ago
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Created by mikeychapman
over 9 years ago
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| Question | Answer |
| Why does exocytosis not increase the size of the cell membrane? A) It does but on an insignificant scale B) Extra phospholipids are metabolised during excercise C) It occurs in equilibrium with endocytosis | C |
| What two systems control homeostasis? How do they differ in effect? | Nervous system and endocrine system. Endocrine = slower but long term Nervous = faster response but short lived |
| What can cause the extinction of a species? | Predation, interspecific competition, habitat loss, disease (epidemic), death of prey |
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Which section of the spine is this vertebra from? label three parts
Image:
lumbar_vertebra (image/jpg)
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Lumbar. 1) body 2) spinous process 3) superior articular process |
| In eukaryotic cells, what is the rough endoplasmic reticulum continuous with? | The outer nuclear membrane |
| What arguments were presented against Darwins' theory of evolution? | The earth was thought to be much to young for Darwins' theory (approx. 19 million years). Structures as complex as the eye could not just appear but had to be designed by a creator. Too many missing fossil intermediates to prove gradual changes. |
| What bones make up the axial/apendicular skeleton and what purpose do they serve? |
axial - protects vital organs
apendicular - locomotion and muscle scaffolding.
Image:
axial_skeleton (image/jpg)
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| Why can mitochondria synthesize their own proteins? | They contain their own DNA, RNA and Ribosomes (there is a theory that they originated as separate organisms to us). |
| What are the 3 types of cartilage? | Hyaline Elastic Fibrocartilage |
| Function of tendons? | Secure muscle to bone |
| Function of ligaments? | Connect bone to bone |
| What is endochondrial ossification? | Replacement of cartilage with bone |
| Anatomy of a long bone? (Top,Middle,Bottom) | Top - Epiphysis Middle - Metaphysis Bottom - Diaphysis |
| Define dorsiflexion | Decreases angle between top of the foot and the shin |
| Define plantarflexion | Increases angle between top of foot and shin |
| Determine the autocrine function of the cell | Secretes a compound which binds to itself |
| What is the primary chemical involved in fixing tissue? | Formaldehyde |
| Which Law defines concentration to be equal to absorbance? A. Beer-Lambert B. Henderson-Hesselbech C. Koch's Postulate | A. Beer - Lambert |
| What is the difference between phenotype and genotype? | Phenotype - Observable characteristics Genotype - The genetic make up |
| Give one reason as to why the risk of genetic mutation increases with age? | -Increased exposure to mutagens -Loss of repair enzymes -Spermatogenesis |
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