eQuizShow

Biology A Study

Biochemistry

Question: A carbon atom can have a maximum of how many single covalent bonds?
Answer: 4

Question: Which element is found in proteins, but NOT in Carbohydrates or Lipids?
Carbon - Hydrogen - Nitrogen - Oxygen

Answer: Nitrogen

Question: What are the six most common elements in organic compounds? 
HINT: teeth

Answer: N CHOPS

Question: What are the 4 biomolecules?
Answer: Carbohydrate, lipid, nucleic acid, protein

Question: What substance is known as a cellular road sign? What purpose does it serve?
Answer: carbohydrate chain, tells other cells its intended function

Cells

Question: How do organisms grow larger? (in relations to cells)
Answer: increasing their number of cells. 

Question: What is the word used to describe when an enzyme becomes unusable or dies?
Name 2 reasons this might happen

Answer: Denature

High heat, high pH (basic), Low pH (acidic)


Question: What is the name for the cell membrane referring to it being a combination of many things?
Name at least 2 of the components to the cell membrane

Answer: Fluid mosaic

Carbohydrate, phospholipid, cholesterol, proteins


Question: What organelles or characteristics differentiate plant cells from animal cells? Name 3
Answer: Plants- Cell wall, chloroplasts, large central vacuole
Animals - fluid cell membrane, centrioles


Question: What is the name for when water leaves the cell and the membrane become wrinkled?
What is the name for when the cell takes in so much water it bursts?

Answer: Crenate
Cytolysis


Photosynthesis

Question: The source of the Oxygen released in photosynthesis is...
Answer: Water (after it has gone through photolysis)

Question: Which 2 products of photosynthesis become reactants in cellular respiration?
Answer: Glucose and Oxygen

Question: Where do the light reactions take place? Dark reactions?

Where does Fermentation occur? Krebs cycle?

Answer: Thylakoid , Stroma

Cytoplasm, Mitochondria


Question: What powers the ATP synthase pump? Where did it come from?
Answer: H+ ions, from the photolysis or H2O

Question: Write the equations for photsynthesis and respiration
Answer: Photosynthesis - H2O + CO2 ---> O2 + C6H12O6

Respiration - C6H12O6 + O2 ----> H20 + O2 + ATP (energy)


Mitosis

Question: These are produced by bacteria and certain fungi in order to reproduce even after enduring harsh conditions. 
Answer: Endospores

Question: How are stem cells different from normal body cells and why are they important to medical research?
Answer: They are undifferentiated (not specialized) and can become almost any type of cell. They can be used to grow tissue for damaged organs/cells. 

Question: When chromosomes are not correctly separated during Meiosis. Name 1 disorder this could result in
Answer: Nondisjunction

Any chromosome related disorder


Question: The process by which a cell divides into 2 identical daughter cells is...
List the abbreviation for its stages.

The process by which a cell divides into 4 non-identical daughter cells is...
List the abbreviation of its stages

Answer: Mitosis - PMAT 

Meiosis - PMAT 1, PMAT 2


Question: Name 3 sources of genetic variation
Answer: Independant assortment, crossing over, random fertilization

Genetics

Question: Who was nicknamed the "Father of Genetics"? and what plant did he study?
Answer: Gregor Mendel

Pea Plants


Question: What is the name for having ONE extra or ONE missing chromosome?
Answer: Aneuploidy

Question: If 2 Heterozygous individuals are crossed, what percent of their offspring will also be heterozygous?
Answer: 50

Question: Cross the following and give the genotypic ratio. 

Aabb  x  aaBb

Answer: 1/4 AaBb
1/4 Aabb
1/4 aaBb
1/4 aabb


Question: See overhead
Answer: