Biomolecules
Enzymes
Cells
Cell Transport
Cell Cycle
100
Which 2 biomolecules provide energy for the body?
Carbohydrates and Lipids
100
For an enzyme to catalyze a reaction, the active site and substrate must _______.
Have matching shapes
Fit together
Have complimentary shapes
Match like a lock and key
100
The difference between prokaryotic cells and eukaryotic cells is that prokaryotes lack a ____.
Nucleus
100
The cell membrane is made of 2 types of biomolecules. What are they?
Lipids and Proteins
100
In which step of mitosis do the spindle fibers pull apart the chromosomes and move them to opposite sides of the cell?
Anaphase
200
Foods such as nuts, beans, meats, and dairy products are high in which biomolecule?
Carbohydrates, Lipids, or Protein?
Protein
200
What are the 2 factors that affect enzymes?
Temperature and pH
200
In organisms that perform photosynthesis, which organelle converts solar energy into glucose?
Chloroplast
200
In passive transport, molecules move from _______ concentration to _________ concentration.
High to Low
with the flow
200
In the cell cycle checkpoints are necessary to make sure daughter cells are healthy.
Without checkpoints, unregulated cell growth causes...?
Tumors which lead to cancer
300
Bears can hibernate in cold climates for 7 to 8 months without drinking water or eating any food.
Which biomolecule do bears rely on for insulation and stored energy during hibernation?
Lipids
300
When an enzyme is not in its optimal pH or temperature, the enzyme cannot work. This is because the enzyme becomes ______, or loses its shape.
Denatured
300
Looking at cells in a microscope, I have placed a X in the boxes for the structures that I observe.
Which cell is most likely an Animal Cell?
Cell Y
(No cell wall, no chloroplast)
300
What type of active transport is shown?
Protein Pump
(NOT PROTEIN CHANNEL)
300
The main steps of the Cell Cycle are Interphase and Mitosis. What happens after mitosis?
Cytokinesis
400
True or false:
Proteins are needed to build your physical traits and some proteins act as enzymes.
True
400
Enzymes are catalysts because they speed up chemical reactions.
What do enzymes do to the activation energy of chemical reactions in the body?
(Increase, decrease, no change)
Decrease (lower) the activation energy
400
Due to bacterial infections, the cells in your body need to make enzymes (which are made of proteins). The new protein enzymes will break down the bacteria to fight off the infection.
Which organelle will make the new enzymes?
Ribosomes
(Ribosomes make proteins)
400
In passive transport, molecules move from a high concentration to low concentration until they reach ______.
Equilibrium
(Balance, homeostasis)
400
Which step is S Phase?
II
(Step 2)
500
Identical twins can share all of the same physical traits because they inherited the exact same genetic material from their parents.
Which biomolecule do twins inherit from their parents?
Nucleic Acids (DNA)
500
Based on the image, where can Pepsin be found in the body?
Stomach (pH = 3)
500
Hummingbirds must eat almost continuously to maintain their high energy needs.
Which organelle helps convert the hummingbirds food into energy for them to use?
Mitochondria (Powerhouse of the cell)
500
Water moves into the snail
The snail swells up
500
People who have leukemia, a cancer that affects white blood cells, are often given Cytarabine. This drug inhibits (stops) the synthesis of DNA.
Which step of the cell cycle does this drug affect?
S Phase
(Synthesis)