Biology-pg.4 Flashcards
1
Q
What is an enzyme?
A
An enzyme is a biological catalyst , that speeds up chemical reactions.
2
Q
What are capillaries?
A
Capillaries are narrow vessels which form networks.The walls of the capillaries are
only one cell thick, which provides a short diffusion pathway, which increases the rate of transfer.
3
Q
What is the aerobic equation
A
glucose + oxygen—> carbon dioxide + water + energy
4
Q
What are some characteristics of an artery?
A
thick, elastic,
muscular, connective
tissue for strength
5
Q
What are some characteristics of a vein
A
thin, less
muscular, less
connective tissue
6
Q
What direction do the vein and artery go ?
A
Artery- away from the heart
Vein- towards the heart
