Revision - Single Award Biology

Revision - Single Award Biology

Multiple Choice

Cells with a membrane, nucleus and cytoplasm, such as those found in animals and plants, are known as ...?

• prokaryotes
• eukaryotes

Multiple Choice

What is the function of the ribosomes?

• respiration
• protein synthesis
• cell replication
• DNA replication

Multiple Choice

What term is used to describe a single celled organism without a true nucleus?

• prokaryote
• virus
• protoctista
• eukaryote

Multiple Choice

Which of these would you not expect to find in a bacterial cell?

• cell wall
• cell membrane
• nucleus
• cytoplasm

Multiple Choice

Movement of anything from an area of high concentration to low concentration.

• Diffusion
• Hypotonic
• Isotonic
• Passive Transport

Multiple Choice

What type of microbe causes cholera?

• A virus

• A Fungus

• A bacterium

• A plant

Multiple Choice

The graph shows how the rate of an enzyme-controlled reaction changes with temperature. What is happening within the temperature range marked X?

• The enzyme is becoming denatured.

• The enzyme is becoming denatured.

• The reaction is occurring at body temperature.

• The reaction is occurring at the optimum temperature.

Multiple Choice

What is defined as the chemical reactions that break down food molecules in cells to release energy?

• excretion

• movement

• digestion

• respiration

Multiple Choice

Which elements do carbohydrates contain?

• carbon, hydrogen and oxygen

• carbon, hydrogen and sulfur

• carbon, nitrogen and oxygen

• carbon, nitrogen and sulfur

Multiple Choice

The diagrams show the arrangement of cells in a section of a green leaf.

Which arrow represents the diffusion of the most oxygen during bright sunlight?

Multiple Choice

In Osmosis, what substance is moved across a cell membrane?

• Oxygen

• glucose

• water

• carbon dioxide

Multiple Choice

Diffusion moves along a

• Concentration gradient

• from low to high concentration

• Conservation of energy line

• cell wall

Multiple Choice

Cellular energy required for active transport comes directly in the form of _________.

• glucose

• lipids

• ATP

• NADPH

Multiple Choice

Solutes move against the concentration gradient

• Passive Transport
• Active Transport

Multiple Choice

Oxygen molecules move from the air sacs in the lungs across the cell membranes into the blood. Is this diffusion, osmosis or active transport?

• diffusion

• osmosis

• active transport

Multiple Choice

Active transport is the movement of large materials across a cell membrane from ______ to ______ concentration

• high to low

• low to high

• high to high

• low to low

Multiple Choice

What is structure E called?

• Vascular bundle

• Cuticle

• Palisade mesophyll

• Lower epidermis

Multiple Choice

The stomata are openings in the leaf which allow for gas exchange. Which cells found either side of the opening control the stomata?

• Guard Cells

• Palisade Cells

• Spongy mesophyll

Multiple Choice

What is the name of layer D called?

• Vascular bundle

• Cuticle

• Palisade mesophyll

• Spongy mesophyll

Multiple Choice

What is the role of the phloem?

• transports water and help supports the plant

• transports sugars

• where photosynthesis happens

• where respiration happens

Multiple Choice

What is the role of the xylem?

• transports water and help supports the plant

• transports sugars

• where photosynthesis happens

• where respiration happens

Multiple Select

What structures are found in the vascular bundle? (pick 2 options)

• Xylem

• Phleom

• Palisade mesophyll

• Spongy mesophyll

Multiple Choice

What are the cells in layer C called?

• Vascular bundle

• Cuticle

• Palisade mesophyll

• Spongy mesophyll

Multiple Choice

State the name of structure A

• Vascular bundle

• Upper epidermis

• Palisade mesophyll

• Spongy mesophyll

Multiple Choice

What is the name of the water proof layer on the top of the leaf?

• Vascular bundle

• Cuticle

• Palisade mesophyll

• Spongy mesophyll

Multiple Choice

In plants the glucose produced in photosynthesis gets stored as which molecule?

• Starch

• Glycogen

• Lipids

• Protein

Multiple Choice

Which molecule transfers light energy into chemical energy for the synthesis of carbohydrates

• Chloroplast

• Chlorophyll

• Mitochondria

• Vacuole

Multiple Choice

State the balanced symbol equation for photosynthesis

• CO₂ + H₂O -> C₆H₁₂O₆ + O₂

• C₆H₁₂O₆ + 6O₂ -> 6CO₂ + 6H₂O

• 6CO₂ + 6H₂O -> C₆H₁₂O₆ + 6O₂

• CO₂ + H₂O -> 6C₆H₁₂O₆ + O₂

Multiple Choice

Which is the word equation for photosynthesis?

• glucose + oxygen -> carbon dioxide + water

• methane + oxygen -> carbon dioxide + water

• glucose + carbon dioxide -> oxygen + water

• carbon dioxide + water -> oxygen + glucose

Multiple Choice

Which is a definition for photosynthesis?

• Releasing energy from nutrients

• The breaking down of large insoluble molecules into small soluble molecules

• The process by which plants make carbohydrates from raw materials using energy from light

• The movement of particles from a high concentration to a low concentration

Multiple Choice

An enzyme speeds up a chemical reaction in the cell but can only be used once.  True or False? 

• true
• false

Multiple Choice

Enzymes are...

• nucleic acids
• proteins
• lipids
• carbohydrates

Multiple Choice

In the diagram, what is letter A? 

• product
• substrate
• enzyme-substrate complex
• active site

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

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

• Enzymes increase the energy of the reactants.
• Enzymes decrease the energy level of the products.
• Enzyme decrease the activation energy of the reaction.
• Enzymes reverse the direction of the reaction.

Multiple Choice

What is a substance called if it speeds up a chemical reaction?

• reusable
• catalyst
• specific
• fragile

Multiple Choice

What is an example of osmosis?

• Carbon dioxide goes out through the stomata of a leaf.

• Digested food is absorbed from the small intestine.

• Oxygen goes into the blood from an alveolus.

• Water enters a plant root from the soil.

Multiple Choice

Which process involves the release of energy from food substances in all living cells?

• breathing

• nutrition

• respiration

• digestion

Multiple Choice

Disease causing organism.

• Phagocyte
• Pathogen
• Pandemic

Multiple Choice

Athlete's foot is an example of this pathogen

• Bacteria
• Virus
• Fungus
• Protozoan

Multiple Choice

Photosynthesis is the: 

• uptake of oxygen and the release of carbon dioxide by animals
• uptake of oxygen and the release of carbon dioxide by plants
• uptake of carbon dioxide and the release of oxygen by plants
• uptake of carbon dioxide and the release of oxygen by animals

Multiple Choice

Supplies most of your immediate energy....

• Fats
• Cellulose
• Glucose
• Glycogen

Multiple Choice

A positive test for the Biuret test goes....

• Blue-black
• Purple
• White
• Brick red