CA Day 2 24-25

Multiple Choice

Which of the following is a primary function of the cell membrane?

• Synthesizing proteins

• Storing genetic information

• Regulating the movement of substances in and out of the cell

• Breaking down macromolecules

Labelling

Label the following parts of the cell membrane in the diagram

Drag labels to their correct position on the image

Mitochondria

PhosphoLIPID bilayer

Protein channel

Multiple Choice

Which of the following best describes endocytosis?

• The process of moving molecules out of the cell through a vesicle

• The process of engulfing large particles into the cell by forming vesicles

• The movement of water across a membrane

• The diffusion of small molecules across the plasma membrane

Multiple Choice

Active transport in cells requires which of the following to move substances across the membrane?

• ATP (energy)

• Osmosis

• Passive channels

• Enzymes for breaking down molecules

Multiple Choice

Which of the following best describes active transport?

• Movement of molecules from high to low concentration without energy

• Movement of molecules from low to high concentration using energy

• Movement of water molecules across a membrane

• Movement of molecules through simple diffusion

Multiple Choice

Which of the following processes is an example of passive transport?

• Endocytosis

• Facilitated diffusion

• Active transport

• Exocytosis

Multiple Choice

Which of the following correctly describes the role of nucleic acids in viruses?

• They provide structural support to the viral envelope

• They store and transmit genetic information for viral replication

• They are responsible for energy production in the virus

• They protect the virus from being recognized by the host's immune system

Labelling

Label stages of lytic cycle

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replicate

Assemble

Attach

Insert

Release

Categorize

Options (5)

Requires a host to replicate

Contains organelles like mitochondria

Contains genetic material (DNA or RNA)

Can perform metabolic processes independently

Lacks a cellular structure

Sort the following characteristics into "Virus" , "Cell" or "Both"

Virus

Cell

Both

Multiple Choice

Ms. Garcia tells her students that her cat has a feline virus. The class asks if they could catch the virus too. Which of the following is the best explanation Ms. Garcia can give?

• The virus only infects cats, as each virus is specific to its host species

• She could transmit the virus to humans if they come into contact with her

• The virus is inactive in her cat, so it cannot spread to anyone else

• The virus will mutate and eventually infect humans

Multiple Choice

What was the primary reason for the rapid spread of a recent Covid -19 viral outbreak?

• The virus spread easily because no prior immunity existed in the population

• The virus was unable to attach to host cells due to a lack of specific receptors

• The virus only spread through direct contact, limiting its transmission

• The virus remained dormant and did not spread for many months

Labelling

Complete the formula

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Water

CO2

Oxygen

C6H12O2

Multiple Select

During photosynthesis, which molecules are produced?

• Glucose

• Water

• Carbon dioxide

• Oxygen

Categorize

Options (6)

Converts glucose into ATP

Occurs in the mitochondria

Converts carbon dioxide and water into glucose

Occurs in chloroplasts

Produces oxygen

Uses oxygen as reactant

Sort the following processes into "Photosynthesis" or "Cellular Respiration"

Photosynthesis

Cellular Respiration

Categorize

Options (4)

Carbon dioxide (CO₂)

Oxygen (O₂)

Glucose (C₆H₁₂O₆)

Water (H₂O)

Sort the following substances into "In" (reactant) or "Out" (product) in the photosynthesis.

In

Out

Multiple Choice

A scientist places a group of yeast cells in a sealed container with sugar and monitors the levels of carbon dioxide over time. What explains the increase in carbon dioxide?

• Photosynthesis

• Cellular respiration

• Active transport

• Mitosis

Multiple Choice

A group of students measures the oxygen consumption of a hamster over several hours in a closed chamber. The oxygen levels decrease over time. What process is most likely causing this decrease?

• Excretion

• Cellular respiration

• Fermentation

• Osmosis