Biomolecules/Enzymes/Photosynthesis &CR 5A/1B/11A

​Biomolecules 5A

By SHEEZA ALI

Multiple Choice

A polymer is made up many:

• polymer

• biomolecules

• proteins

• monomers

Multiple Choice

Which biomolecule includes sugars and starches? (Hint: simple or complex)

• Lipids
• Proteins
• Carbohydrates
• Nucleic Acids

Hotspot

These biomolecules end in -ose. They provide quick energy to the cell. Fructose, Glucose, and Lactose are examples.

Drag and Drop

Select the correct Functions of a carbohydrate:

Placeholder

​

Placeholder

Drag these tiles and drop them in the correct blank above

Make up structure like outer part of plants

Provide short term energy

Provide long term energy

Provide Insulation for heat

Store genetic information

Match

Match the following

• Substrate

• Enzyme

• Active Site

• Product

• Enzyme Substrate Complex

A

B

C

D

E

• A

• B

• C

• D

• E

Hotspot

A model of DNA is shown.

Which part of the DNA model is most directly associated with the coding of genetic information?

Categorize

Options (7)

Deoxuribose sugar

RIbose Sugar

Double Strabded

Single Stranded

Adenine Goes with Thymine

denine goes with Uracil

Found in Nucleus for Euk Cells

Sort the following characteristics

DNA

RNA

Labelling

Label the 3 parts of a nucleotide.

Drag labels to their correct position on the image

phosphate

sugar

base

acid

Dropdown

The main function of Lipids is to provide the body with: ​

Select answer

Multiple Choice

Which of these is not a function of lipids?

• Quick energy

• Sturctural components in cell membranes

• Insulation to keep an organism warm

• Long term energy storage

Multiple Choice

Lipids are made of...

• CHO

• CHON

• CHONP

• CHONS

Categorize

Options (16)

short/quick energy

monosaccharide

glucose

Soda

long-term energy

fatty acids

oils

Olive Oil

genetic code

DNA & RNA

Nucleotides

cell growth & repair

amino acids

enzymes

steak

Organize these options into the right categories. Record the answers on your paper.

CARBOHYDRATES

LIPIDS

NUCLEIC ACIDS

PROTEIN

Enzymes 11 B

Multiple Select

Which statements regarding enzymes are correct?
Select TWO correct answers.

• Enzymes are proteins that function as catalysts.

• Enzymes always work faster as temperature increases.

• Enzymes always lower activation energy.

• Enzyme activity cannot be regulated.

• Enzymes are used up during a reaction.

Multiple Choice

11B: The graphs show the reaction rate for an enzyme across a range of temperatures and pH.

Based on these data, this enzyme functions best at what temperature and pH?

• Temperature of 27°C and a pH of 4

• Temperature of 37°C and a pH of 6

• Temperature of 40°C and a pH of 8

• Temperature of 50°C and a pH of 10

Multiple Choice

Enzymes need certain environmental conditions in order to function properly. What happens when enzymes are taken out of those optimal conditions?

• they die

• they denature

• they change their amino acid sequence

• they work better

Multiple Choice

11B: The diagram represents one way an enzyme can be inhibited. Which statement explains the effect of an inhibitor on an enzyme?

• A substrate will be able to bond with the enzyme

• The enzyme will likely be attacked by immune cells

• The enzyme will be unable to produce more enzymes

• A substrate will be unable to attach to the enzyme

Multiple Select

What is the function of the cell membrane? Select two answers.

• Controls passage of materials

• Functions as an ezyme

• Boundary between inside and outside of cell

• Short-term energy storage

Multiple Choice

What does "selectively permeable" mean?

• all molecules can enter the cell

• only small molecules can pass through

• only water was enter

• some things can enter while others can not

Multiple Choice

Which of the following best explains the process illustrated in the above diagram?

• Passage of water molecules through a semi-permeable membrane to equalize concentration

• Transport of molecules across a membrane from a high to low concentration gradient by means of a carrier molecule

• Movement of molecules against a concentration gradient expending energy

• Separation of suspended particles from a fluid environment to a non-fluid environment through a porous membrane

Multiple Choice

A scientist is investigating cell transport. She observes molecules being transported into a cell through proteins present in the cell membrane. These proteins do not use energy to transport the molecules. Which of the following best explains the type of cell transport observed by the scientist?

• Active transport because membrane proteins were used

• Diffusion because the molecules were entering the cell

• Facilitated diffusion because the proteins were not using energy

• Osmosis because the molecules were moving against the concentration gradient

Multiple Choice

4B The cellular process known as the sodium-potassium pump was discovered in the 1950s by Jens Christian Skou, a Danish scientist. This process is a form of active transport that moves three sodium ions to the outside of a cell for every two potassium ions that it moves into the cell. Which of these best explains why energy is needed for active transport?

• Ions are negatively charged

• Ions are attached to large proteins

• Ions are trapped inside the plasma membrane.

• Ions are moved against the concentration gradient

Multiple Choice

Cells absorb and excrete substances through the phospholipid bilayer of the cell membrane to maintain homeostasis. In which process do cells use vesicles to excrete substances?

• Facilitated diffusion

• Endocytosis

• Exocytosis

• Simple diffusion

Multiple Select

Which statements are true about passive transport?

Select TWO correct answers.

• Passive transport requires very little energy.

• Passive transport does not require energy.

• Passive transport moves against the concentration gradient.

• Passive transport moves with the concentration gradient.

• Passive transport always requires the help of proteins in the membrane.

Multiple Choice

4B: Some students used vinegar to dissolve away the shells of three eggs and used these eggs as models of human red blood cells. The students observed the changes in the eggs when they were placed in different solutions. Which statement best describes the role of the cell membrane in this model?

• The cell membrane is an impermeable barrier that prevents water from entering the cell.

• The cell membrane allows solutes to enter the cell, which causes the cell to shrink

• The cell membrane allows water to enter and leave the cell

• The cell membrane removes solutes from the environment

Multiple Choice

The sodium potassium pump is an example of

• Passive Transport

• Active Transport

• Facilitated Diffusion

• Endocytosis

Multiple Choice

4B: This diagram shows cellular activity across a cell membrane. Which two processes does this diagram most directly model?

• Energy conversions and synthesis of new molecules

• Synthesis of new molecules and homeostasis

• Transport of molecules and energy conversions

• Homeostasis and transport of molecules

Multiple Choice

A cell with a 10% salt solution; is placed in distilled water with 0% starch concentration. Water can travel across a semipermeable membrane but starch cannot. Would you expect to see after an hour?

• The solution inside the cell is hypotonic and moves into the cell.

• The solution inside the cell is hypertonic so the water moves into the cell.

• The solution inside the cell is hypotonic and moves out of the cell.

• The solution inside the cell is isotonic so the water doesn't move.

Multiple Choice

Students are observing particles moving against the concentration gradient in a lab investigation. Which type of transport are they observing?

• osmosis

• active Transport

• facilitated diffusion

• diffusion

Multiple Choice

This picture shows molecules of red dye that have moved. What is this type of movement called?

• Osmosis; the water molecules are moving from high concentration to low

• Diffusion; the dye molecules are moving from low to high concentration

• Diffusion; the dye molecules are moving from high to low concentration.

• Facilitated diffusion; because the molecules are moving through a protein channel.

​Photosynthesis and Cellular Respiration 11A

By SHEEZA ALI

Photosynthesis

6CO₂ + 6H₂O + Light C₆H₁₂O₆ + 6O₂

Carbon
Dioxide

Water
Glucose
(Sugar)

Oxygen

Reactants
Products

Multiple Select

What are the 2 stages of photosynthesis?

• Dark Reactions

• Light Reactions

• Calvin Cycle

• Glycolysis

Multiple Choice

The diagram represents part of a life process in a leaf chloroplast. If the process illustrated in the diagram is interrupted by a chemical at point X, there would be an immediate effect on the release of

• Chlorophyll

• Nitrogen

• Carbon Dioxide

• Oxygen

Mitochondria

●

Organelle where cellular respiration takes place

●

“Powerhouse of the cell”

●

Aerobic respiration produces more energy than anaerobic respiration

●

ATP is being produced here

Multiple Choice

Organelle where cellular respiration happens:

• mitochondria

• vacuole

• Chloroplast

• rough ER

Cellular Respiration Formula

C₆H₁₂O₆ + 6O₂ 6CO₂ + 6H₂O + ATP (energy)

Glucose
Energy

Water

Carbon
Dioxide

Oxygen

Reactants

Products

Multiple Select

The reactants of cellular respiration are: Select two answers

• water

• sunlight

• carbon dioxide

• Oxygen

• glucose

Multiple Select

The products of cellular respiration are: Select all that apply.

• water

• ATP

• carbon dioxide

• Oxygen

• glucose

Multiple Choice

9B Which statement explains how producers are dependent upon consumers for their survival?

• Consumers supply oxygen for producers to undergo aerobic respiration.

• Consumers produce carbon dioxide for producers to use during photosynthesis.

• Consumers provide chemical energy needed by producers for cellular respiration.

• Consumers make lactic acid that producers use in photosynthesis.

Multiple Select

What should go in the boxes in the left arrow?

• 6O2
• C6H12O6
• 6CO2
• H2O