Biology Answers

In order for the enzyme lactase to catalyze the digestion of lactose into the monosaccharides glucose and galactose,lactose must first bind to the ___________ of the enzyme

based on where they perform gheir functions the enzymes amylase and maltase in human saliva are classified as

Hello,

I would like to ask you one specific question - We need RNA polymerase to make a protein, but RNA polymerase is made up of proteins. So how does RNA polymerase, or its subunits, appear in the first place?

Given the general equation below of photosynthesis, encircle the raw material and product of the light - independent reaction (calvin cycle) stage of photosynthesis.

6CO2 + 6H20 + sunlight → C8H12O6 + 602

a. In a pea plant that breeds true for tall, what possible gametes can be produced? Use

the symbol D for tall, d for dwarf.

c. What will be the genotype of F1 offspring from a cross between these two types?

d. Assuming that the allele for tall is dominant, what will be the phenotype of F1

offspring from a cross between these two types?

e. What will be the probable distribution of traits in the F2 generation? 

Complete the table by giving 1 example of an organism that exhibits the following characteristic of life.

Characteristics of life: Example:

1.Unique chemical organization

2.Made of cell

3.Constant obtain/use energy

4.Ability to grow and develop

5.Has definite form and size range

6.Capacity to reproduce

7.Has a difinite life apan

8.Abiltiy to respond to stimuli

9.Variation and adaptation

10.Ability to move

Raw milk from a farm was found to contain 3  104

bacterial cells per millilitre when analysed at

the dairy. Before being packaged, the milk is pasteurised so that the milk contains not more than

10 cells per millilitre.

1.1 What is the minimum time the milk has to be heated if the D63 value is 8 minutes?

Body system(there are 10): what is the system, why is it important, how to protect it, Bonus: How does the system work
In your own word
RespiratoryDigestiveUrinaryreproductive

Explaine how each of the following words is related to the other : embryooy, embryogenesis and embryonation.

Provide a complete summary of the process responsible for the formation of the fertilisation membrane of the Echinodermata (10)marks