Cells, Enzymes, Biological molecules & Immunity quick quiz

Starch has 1,4 and 1,6 glyosidic bonds

Cellulose has a straight structure and is made of Beta glucose

Starch is made of amylose.

The difference between starch and glycogen is that it is even further branched which enables quicker build up and breakdown of glycogen to meet superior energy demands of animals as compared to plants.

What is another name for B cell?

What is the function of a phagocyte?

What is an antigen

When evaluating data in a question what should you do?

What are the names of disaccharides?

Names of monosaccharides are...

An advantage of a SEM microscope is....

Antibiotics break down the [blank_start]cell wall[blank_end] of a bacterial cell.

Some antibiotics actually kill bacteria, and others just stop them from growing. [blank_start]Bactericidal[blank_end] antibiotics kill bacteria directly, and [blank_start]bacteriostatic[blank_end] antibiotics stop bacteria from growing

How do B-lymphocytes respond when they are stimulated by antigens?

Macrophages stimulate B lymphocytes by presenting the a[blank_start]ntigen[blank_end] on its cell surface membrane (antigen presenting cell (APCs)). They produce c[blank_start]ytokinins[blank_end].

There is usually an interval of several hours between ingesting Salmonella bacteria and suffering diarrhoea and sickness because Salmonella produces toxins, released when bacteria die. It takes time for enough bacteria to die and for bacteria to multiply.

Prokaryotic cells contain ribosomes attached to the endoplasmic reticulum.

DNA in a prokaryotic cell is contained inside a nucleus.

Competitive inhibitors

Which of the following apply to Optical Light microscopes....?

Plant cell walls are made of sucrose.

Antibodies: -Secreted by [blank_start]B-lymphocytes[blank_end] and produced in response to a specific (foreign) non-self antigen -B-lymphocyte's receptor site matches the non-self-antigen -Each antibody is produced by one type of B-lymphocyte for only one type of antigen -An antibody is [blank_start]Y-shaped[blank_end] B cells divide and form memory cells and antibody-secreting plasma cells: -[blank_start]Agglutination[blank_end] makes pathogens clump together -[blank_start]Antitoxins[blank_end] neutralise toxins produced by bacteria -[blank_start]Lysis[blank_end] digests bacterial membrane, killing the bacterium

When investigating the mass of a potato when placed in different concentration of sucrose solution, we would expect that that the potato will decrease in mass when the solution is higher in concentration on the outside.

Plasma membrane consists of a phospholipid bilayer studded with proteins, polysaccharides, lipids and starch

Functions of proteins: -Carrier ([blank_start]change shape for different molecules[blank_end]) for water-soluble molecules such as glucose -Channels for ions (sodium and chloride ions) -Pumps use [blank_start]energy[blank_end] to move water-soluble molecules and ions -Adhesion molecules for holding cells to extracellular matrix -Receptors enable hormones and nerve transmitters to bind to specific cells -[blank_start]Recognition[blank_end] sites, which identify a cell as being of a particular type -[blank_start]Enzymes[blank_end], which speed up chemical reactions at the edge of the membrane -Adhesion sites, which help some cells to [blank_start]stick together[blank_end] -E.g. glycoprotein acts as a receptor and recognition site