CHAPTER 4
CHAPTER 5
CHAPTER 5 HARD
CHAPTER 6
CHAPTER 6 HARD
100

This element is known as the backbone of life because all organic molecules are based on it. 

Carbon. 

100

The simplest carbohydrates, such as glucose and fructose, are known as...

monosaccharides. 
100

The difference in alpha and beta-glycosidic linkages between glucose monomers in polysaccharides gives rise to these two molecules, of which only one is digestible by humans. 

Starch (alpha 1,4 linkages) and Cellulose (beta-1, 4 linkages) 

100

The organelle in charge of shipping and receiving (center) inside the cell, which also modifies products of the ER and sort them into vesicles is the

Golgi Aparatus. 

100

A complex structure composed of proteins which regulates the movement of macromolecules, mRNA, miRNA, tRNA and rRNA between the nucleus and cytosol (cytoplasm), also acting as a selective double membrane?

A nuclear pore. 

200

This group, written as -OH, is found in alcohols and makes molecules polar. 

Hydroxyl group. 

200

These lipids are made from one molecule of glycerol and three fatty accids, and serve as long-term energy storage. 

tryglycerides. 

200

During the industrial process that converts unsaturated fats into saturated ones, hydrogen is added across double bonds. A harmful product of this partial hydrogenation of unsaturated fats was also known as margarine and is thought to be bad for your health. 

Trans-fat. 
200

A microscopy that can visualize the 3D surface of a specimen by scanning electrons is called

Scanning electron microscopy SEM. 

200

An organelle that receives proteins and lipids from the endoplasmic reticulum. It then directs them to their final destination such as lysosomes, plasma membrane, or secretion. 

Golgi Apparatus. 

300

This functional group features a carbon atom double-bonded to oxygen and can appear in ketones or aldehydes.

Carbonyl Group. 

300

the sequence of aminoacids in a polypeptide chain determines this level of protein structure...

Primary structure. 

300

In DNA, it is said that purines pair with pyrimidines. If Adenine is a purine, with double ring, then to which pyrimidine is Adenine most likely going to pair?

Thymine. 

300
All the DNA is contained within the...
Nucleus. 
300

An organelle that containes enzymes that remove hydrogen atoms from substrates and transfer them to form hydrogen peroxide, also said to diggest them. 

Peroxisome. 

400

A Molecule with both carboxyl and an amino group belongs to this class of biological molecules. 

Amino Acid. 

400

This protein is a hormone, produced by the pancreas and helps to regulate blood sugar by signaling cells to take up glucose.

insulin. 

400
In sickle cell disease, a mutation substitutes valine instead of glutamic acid in the hemoglobin polypeptide chain. Please explain why this greatly affects the structure of the protein. 

hint: it has to do with polarity. 

Because Valine is non-polar and replaces the negatively charged glutamic acid, and because of this, it creates a hydrophobic structure that makes the hemoglobin protein collapse on itself. 
400

Organelles responsible for converting energy, one through respiration and the other through photosynthesis?

Mitochondria and chloroplasts. 

400

In animal cells, this type of extracellular glycoprotein attaches to membrane integrins. It links extracellular matrix to the cytoskeleton. 

Fibronectin

500
What is the name of this group, which is found bonded to nucleotides and which stores potential energy in its bonds, also forming part of DNA and RNA backbone?

Phosphate group

500
A nucleic acid that contains a deoxyribose sugar. 

DNA

500

In the flow of genetic information, DNA is said to be composed of two antiparallel strands, being this important for correct replication. Please explain in which direction is DNA replication synthesized. 

DNA Pol adds nucleotides from 5' to 3' direction. 

500

It is composed of microtubules, microfilaments and intermediate filaments. It is an internal framework that gives the cell structure and allows it for movement. 

Cytoskeleton. 

500
found only in plant cells, it is a large organelle that stores water and waste products. It helps maintaint turgor pressure. 

Central Vacuole.