Fall Final - Day 2 Review - 2024

Poll

Who would you like to meet?

• meet Frosty

• meet Rudolph

• meet Olaf

Poll

When do you like opening Christmas presents?

• on Christmas eve

• on Christmas morning

Multiple Choice

If you are cold, what does your body do?

• shiver/get goose bumps

• sweat

• stare blankly

• nothing

Multiple Choice

True or False:

Enzymes can work in only specific conditions. For example, get them too hot or acidic and they denature.

• True, enzymes are picky and only work in specific ideal conditions.

• False, enzymes can function under any conditions.

Multiple Choice

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

Multiple Choice

Osmosis is a type of ____ transport; meaning it ____ require energy from the cell.

• active; does

• passive; does not
• passive; does

• active; does not

Multiple Choice

HYPO means...

• Less solutes

• High solutes

• Equal solutes

• Fat solutes

Multiple Choice

ISO means...

• Low
• A lot
• Equal
• Mammal

Match

Match each condition with its picture.

Plant cell in hypertonic solution

Plant cell in hypotonic solution

Animal cell in hypertonic solution

Animal cell in hypotonic solution

Plant & Animal cell in isotonic solution

• Plant cell in hypertonic solution

• Plant cell in hypotonic solution

• Animal cell in hypertonic solution

• Animal cell in hypotonic solution

• Plant & Animal cell in isotonic solution

Multiple Choice

What cell structure helps a cell maintain homeostasis by being semi-permeable?

• Nucleus
• Ribosome
• Mitochondria
• Cell membrane

Multiple Choice

A student fills a beaker with a 5% salt solution. The student places a dialysis bag containing a 15% salt solution into the beaker. Then the student measures the salinity of the salt solution in the beaker after 5 minutes. The dialysis tubing is permeable to salt and water.

What is the net direction in which water moves immediately after placing the dialysis tubing in the beaker?

• Water will move into the tubing.

• Water will move out of the tubing.

• Water will not move at all.

• There will be no net movement of water.

Multiple Choice

How do molecules move in passive transport?

• Molecules move from high to low concentration without energy.
• Molecules move in a circular motion regardless of concentration.
• Molecules move randomly without any concentration gradient.
• Molecules move from low to high concentration using energy.

Multiple Choice

How do molecules move in active transport?

• Molecules move randomly in all directions without any proteins.
• Molecules move against their concentration gradient (low to high) using energy and transport proteins.

• Molecules move with their concentration gradient (high to low) without using energy.

• Molecules move only through passive diffusion without energy.

Multiple Select

All the following require energy (ATP), EXCEPT which processes?

Note: TWO (2) ANSWER CHOICES ARE CORRECT.

• Simple diffusion like osmosis of water

• Exocytosis

• Facilitated diffusion

• Endocytosis
• Active transport

Match

Match each type of transport with its description.

• Osmosis

• Simple diffusion

• Exocytosis

• Facilitated diffusion

• Endocytosis

diffusion of water

moves gas molecules like O₂ & CO₂

uses a vesicle to take molecules outside

diffusion through a protein channel

uses a vesicle to bring molecules inside

• diffusion of water

• moves gas molecules like O₂ & CO₂

• uses a vesicle to take molecules outside

• diffusion through a protein channel

• uses a vesicle to bring molecules inside

Labelling

Drag the labels to the correct spots A-E

Drag labels to their correct position on the image

products

enzyme

substrate

unchanged enzyme

enzyme substrate complex

Multiple Choice

An enzyme speeds up a reaction by...

• lowering the activation energy.
• raising the activation energy.
• releasing energy.
• absorbing energy.

Multiple Choice

Based on the graph, what is the optimal temperature for this enzyme? 

• 15^oC
• 40^oC
• 30^oC
• 35^oC

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

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

• reusable
• catalyst
• specific
• fragile

Multiple Choice

Every enzyme has a optimal temperature and pH. True or False?

• True 
• False

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 .