Bio Checkpoint 1

Bio Check Pt 1

by Nancy Stockton

Checkpoint 1

Multiple Choice

Which of the following answers links a biomolecule with one of its proper functions?

• Lipids - Store genetic information

• Carbohydrates - short term energy storage

• Nucleic Acids - Catalyze reactions

• Proteins - long term energy storage

Multiple Choice

Which biomolecule helps form muscles?

• Nucleic Acid

• Carbohydrate

• Protein

• Lipids

Multiple Choice

Which biomolecule is made of nucleotides and contain you DNA?

• Carbohydrate

• Lipids

• Protein

• Nucleic Acid

Multiple Choice

Which biomolecule is your main source of energy?

• Nucleic Acid

• Protein

• Lipid

• Carbohydrate

Multiple Choice

Based on the graph, what temperature does this enzyme work best? 

• 15 C

• 40 C

• 30 C

• 47 C

Multiple Choice

Which of the following conclusions can be drawn from this graph?

• The optimum pH of the enzyme is 6.6.

• The optimum pH of the enzyme is 5.8

• The enzyme’s activity increases as pH increases 5.0 to 9.0

• The enzyme’s activity is greater around pH of 8.0 .

Multiple Choice

What happens when enzymes are heated to a high temperature?

• The enzymes die.

• The shapes of the enzyme are altered denature

• The enzymes' amino acid sequence changes.

• The enzymes remain the same

Multiple Choice

Cells can only work if their enzymes are functioning. What can you infer from the graph?

• Cells function best at low pH values

• Cells function fine at all pH values

• Cells function best at high pH values

• Cells do not function well if the pH is too high or too low

Multiple Choice

My main goal is to produce a lot of ATP energy. 

• Chloroplast

• Mitochondria

Multiple Choice

What is the main function of chloroplast?

• Mitosis

• Meiosis

• Translation

• Photosynthesis

Multiple Choice

What is the difference between a prokaryotic cell and a eukaryotic cell?

• Prokaryotes do not have a nucleus or organelles, but a eukaryotic cell does

• Eukaryotic cells do not have a nucleus or organelles, but prokaryotes do

Multiple Choice

Which is true of prokaryotic and eukaryotic cells?

• Prokaryotic cells are larger than eukaryotic cells.

• Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.

• Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.

• Eukaryotic cells are simpler than prokaryotic cells.

Multiple Choice

How are particles moved or transported in the cell?

• with mitochondria

• through endoplasmic reticulum

• by the nucleus

• with vesicles

Multiple Choice

What type of transport is this?

• Endocytosis

• Facilitated Diffusion

• Active Transport Pump

• Osmosis

Multiple Choice

Even though the concentration of salt is high in some gland cells and low in the blood, these cells can move salt out of blood and into the cells.  This is an example of

• passive transport

• active transport

• diffusion

• osmosis

Multiple Choice

Homeostasis is...

• the need to maintain a stable internal environment

• the movement of water from a high to low concentration

• the movement of sugar from low to high concentration

• the change in temperature outside