Biology Answers

At the venous end of a capillary, consider these values:

Within the capillary: Hydrostatic Pressure (HPc) = 18 mm Hg while the Colloid Osmotic Pressure (OPc) = 28 mm Hg

In the interstitial fluid: Hydrostatic Pressure (HPif) = 0 mm Hg while the Colloid Osmotic Pressure (OPif) = 1 mm Hg.

• What is the net hydrostatic pressure?
• What is the net colloid osmotic pressure?
• What is the net filtration pressure (NFP)?
• Does fluid move into or out of the capillary?
• For full credit, show all calculations.

what is the difference between a sperm cell and a cheek cell according to their appearance ?

Protein x and GFR form a covalent link or complex following receptor activation?

Can you differentiate Gram positive and Gram negative bacteria using simple staining procedure? Why?

Define the enzyme

Write the characteristic features of a terrestrial or an aquatic ecosystem. (10)

List the analytic and synthetic characters of a biological community. Explain 

in one or two lines the information provided by each character about the 

community. (10)

Describe the ecological adaptations in plants and animals when there is 

scarcity or abundance of water with labeled diagrams. (10)

Prepare a detailed account, on any one of the given environmental 

components: water, soil. (10)

b) State whether the given statements are true or false: 

i) Hippocrates was the first person to introduce ecological approach 

long before the term ecology was coined.

ii) Synecology is the study of individuals or populations of a single 

species with respect to their environment.

iii) Most gaseous cycles are imperfect biogeochemical cycles. 

iv) Competetion in the community is not limited within the species.

v) Autotrophs are capable of photosynthesis.