Living Systems and Processes

A lipid is a macromolecule that is used to...

• give cells/systems energy.

• build cell parts.

• give cells/systems long term energy storage.

• help cells with chemical processes.

Tags

NGSS.MS-LS1-7

NGSS.MS-LS1-2

Which of the following contains the genetic code for protein synthesis?

• carbohydrate

• lipid

• protein

• nucleic acid

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Which macromolecule stores energy, insulates us, and makes up the cell membrane?

• lipids

• proteins

• carbohydrates

• nucleic acids

Which of the following organic compounds is the main source of energy for living things?

• carbohydrates

• lipids

• nucleic acids

• proteins

Tags

NGSS.MS-LS1-6

What does metabolism mean?

• Converting energy into food

• Making light reactions happen

• Converting food into energy

Tags

NGSS.MS-LS1-7

Building blocks of the body, hair , muscles etc.

• protein

• nucleic acid

• lipids

• carbohydrates

Tags

NGSS.MS-LS3-1

Imagine Jackson, Arjun, and Nora are tiny scientists exploring a cell! They come across a process and wonder, 'How does this process of cellular respiration follow the Law of Conservation of Energy?' What would you tell them?

• 'The energy that goes into the process of cellular respiration is lost to create new substances.'

• 'The total amount of energy needed to complete the process of cellular respiration remains the same.'

• 'The total amount of energy needed to complete the process of cellular respiration decreases over time.'

• 'The energy that goes into the process of cellular respiration is used up to create new energy that is stored in the new substances.'

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-5

NGSS.MS-PS3-5

Noah, Anika, and Daniel are on a mission to save their school's garden. They discovered that the chlorophyll in the plants is decreasing. Which of the following options best explains how this decrease in chlorophyll would affect the process of photosynthesis in the plants?

• It will trigger the plants to increase the rate of photosynthesis in order to increase the production of food, like a superhero gaining strength.

• It will limit the amount of water the plants are able to take in, resulting in a slower rate of photosynthesis, like a marathon runner without enough water.

• It would increase the production of oxygen because the plant would need to work harder to feed themselves, like a chef cooking faster when the restaurant is busy.

• It would limit the amount of light absorbed by the plant and decrease the amount of food the plant is able to produce for itself, like a solar panel on a cloudy day.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Imagine Scarlett, Evelyn, and Ethan are on a science adventure. They stumble upon a mysterious creature and wonder how it carries out its cellular functions. Which option below best explains how the creature's animal cells might use cellular respiration to carry out these functions?

• The creature's cells break down water molecules to release energy and oxygen, which is then used for other cellular functions.

• The creature feeds on food for energy and water for oxygen, which is used to break down carbon dioxide for other cellular functions.

• The creature's cellular respiration breaks down stored carbon dioxide found in its body to release oxygen which is then used for cellular functions.

• The creature breathes in oxygen and feeds on food for glucose. This combination allows its cells to break down glucose, releasing energy for the cell to carry out other functions.

Tags

NGSS.MS-LS1-7

Draw a graph that shows the relationship between light and rate of photosynthesis.

Light on the X axis and Rate of photosynthesis on the Y axis.

Tags

NGSS.MS-LS1-6