Bio Semester Review

Biology 1st Semester Review

9A: Biomolecules

• you need to know the function of each biomolecule

Multiple Choice

What biomolecule contains the elements Nitrogen and Phosphates? ** Hint: DNA has a sugar, phosphate, and a nitrogenous base

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

Multiple Choice

DNA & RNA are classified as which of the following type of biomolecule?

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

Multiple Select

Carbohydrates, lipids, nucleic acids, & proteins share which 3 elements in common (select 3)

• Carbon

• Hydrogen

• Fluorine

• Oxygen

9C: Enzymes

https://www.youtube.com/watch?v=c5j6ExHLFD8

Multiple Choice

When something is inhibited, it is blocked or prevented from occurring. An inhibitor blocks the active site and prevents a substrate from binding to the enzyme.

• True, an inhibitor does prevent a substrate from binding to an enzyme.

• False, an inhibitor does not prevent a substrate from binding to an enzyme.

Multiple Choice

The rate of reaction for an enzyme can be affected by temperature and PH.

• True, temperature and PH affect the rate of reaction in enzymes

• False, temperature and PH do not affect the rate of reaction in enzymes

4A: PROKARYOTIC VS. EUKARYOTIC

https://www.youtube.com/watch?v=RQ-SMCmWB1s&feature=youtu.be

Multiple Choice

You observe a cell under a microscope it has no nucleus, is small and has flagella to help it move. What kind of cell is this?

• Eukaryote

• Prokaryote

• None of the above

Multiple Choice

Which of the following is a eukaryotic cell?

• Plant Cell

• Bacterial Cell

• Viral Cell

6A: Components of DNA

https://www.youtube.com/watch?v=C1CRrtkWwu0&feature=youtu.be

Multiple Choice

Each strand of a DNA molecule contains nitrogenous bases that pair with other nitrogenous bases in very specific ways. A section of DNA is shown below:

5’ GAA TTT TAG CGA CGC AAA TTG TAT GTC 3’

Which answer choice is the complementary DNA strand?

• 3’ CTT AAA ATC GCT GCG TTT AAG ATA CAG 5’

• 3’ GAA TTT CCG TGT AGC CCA GAC CCC ATT 5’

• 3’ CUU AAA AUC GCU GCG UUU AAC AUA CAG 5’

• 3’ GAC ATA GAA TTT GCG TCG CTA AAA TTC 5’

Multiple Choice

Nucleotide sequence comparisons are possible because all organisms share which of the following?

• DNA bases

• Cellular organelles

• Division of the nuclear chromosomes

• Types of proteins needed for cellular functions

Multiple Choice

What holds complimentary base pairs together?

• hydrogen bonds

• sugar-phosphate backbones

• pairs of double-ringed nucleotides

• nitrogen-carbon bonds

Multiple Choice

What is the amino acid sequence made from the following DNA template strand?

3’ ACC GCT CAT ACA GAT 5’

• Valine – Proline – Leucine – Glycine - Tryptophan

• Tryptophan – Arginine – Valine – Cysteine – Leucine

• Glycine – Arginine – Proline – Glutamine – Serine

• Tryptophan – Leucine – Valine – Proline – Isoleucine

Multiple Choice

What is the name of the process depicted in the picture below, and what molecule is being built?

• replication – DNA

• transcription – mRNA

• translation – mRNA

• translation – protein

Multiple Choice

Which molecule can leave the nucleus and provides information to form proteins?

• DNA

• amino acids

• carbohydrates

• mRNA

Multiple Choice

A muscle cell differentiates into a muscle cell and nerve cell differentiates into a nerve cell because:

• They have a different genetic code in their DNA based on their cell type.

• They activate specific genes based on their cell type.

• They delete the parts of the DNA that they don’t need.

• They have different genes in their DNA.