Cell Structures, Functions, and Nutrient Interactions

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Questions and Answers

Which cell structure is responsible for producing ATP through cellular respiration?

  • Ribosomes
  • Endoplasmic Reticulum
  • Nucleus
  • Mitochondria (correct)

Ribosomes are responsible for modifying and packaging proteins and lipids.

False (B)

What is the main function of lysosomes within a cell?

Digest cellular waste

The cell structure that regulates what enters and exits the cell is the ______.

<p>cell membrane</p>
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Match the following cell structures with their functions:

<p>Nucleus = Controls cell activities Mitochondria = Produces ATP Ribosomes = Protein synthesis Lysosomes = Digests cellular waste</p>
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Which of the following cell structures is exclusively found in plant cells and is the site of photosynthesis?

<p>Chloroplasts (D)</p>
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Vacuoles primarily function to produce proteins within the cell.

<p>False (B)</p>
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What type of molecule is primarily stored within vacuoles?

<p>Water</p>
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The gel-like fluid inside the cell where many chemical reactions occur is called the _______.

<p>cytoplasm</p>
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Which of these nutrients interacts with the nucleus for DNA synthesis?

<p>Vitamins (B12 and folate) (B)</p>
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The cell membrane is primarily composed of carbohydrates.

<p>False (B)</p>
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What is the process that occurs in the cytoplasm to break down glucose?

<p>Glycolysis</p>
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_______ is a mineral used by chloroplasts for photosynthesis.

<p>Magnesium</p>
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Which minerals are crucial for maintaining ion balance in nerve and muscle cells, a function supported by the cell membrane?

<p>Sodium, Potassium, and Calcium (A)</p>
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The Endoplasmic Reticulum interacts with nutrients such as carbon dioxide and water to perform its functions.

<p>False (B)</p>
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Which of the following is a function of the Endoplasmic Reticulum (ER)?

<p>Modifying and Packaging Proteins and Lipids (C)</p>
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What materials will the cell membrane allow to be transported in/out of the cell?

<p>Glucose, amino acids, fatty acids</p>
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_______ is the process that ribosomes use to make proteins.

<p>Protein synthesis</p>
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Which of these vitamins/minerals do not interact with ribosomes?

<p>B12 (B)</p>
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Lysosomes use enzymes made of lipids.

<p>False (B)</p>
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Flashcards

Nucleus

Contains DNA and controls cell activities.

Mitochondria

Produces ATP through cellular respiration.

Ribosomes

Responsible for protein synthesis.

Endoplasmic Reticulum (ER)

Modifies, packages, and ships proteins and lipids.

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Lysosomes

Digests cellular waste, damaged organelles, and macromolecules.

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Vacuoles

Stores nutrients, waste, and water.

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Cytoplasm

Gel-like fluid where many chemical reactions occur.

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Chloroplasts

Site of photosynthesis, making glucose from sunlight (plant cells only).

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Cell Membrane

Regulates what enters and exits the cell; composed of lipids and proteins.

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Study Notes

  • Cell structures have specific functions and nutrient interactions

Nucleus

  • Contains DNA
  • Controls cell activities
  • Interacts with proteins (for enzymes and histones)
  • Interacts with vitamins (B12 a1 folate for DNA synthesis)/2inc

Mitochondria

  • Produces ATP through cellular respiration
  • Interacts with carbohydrates, as the main fuel source
  • Interacts with Lipids (fatty acids) during fasting or low-carb states
  • Interacts with proteins (amino acids) when carbs/lipids are low
  • Interacts with Vitamins/minerals: B1, B2, B3, and Iron for ATP production

Ribosomes

  • Facilitate protein synthesis
  • Translate mRNA into proteins
  • Interacts with proteins, carbohydrates and r sviic e/mtein-ium for ribosomal function

Endoplasmic Reticulum (ER)

  • Modifies, packages, and ships proteins and lipids

Lysosomes

  • Digests cellular waste, damaged organelles, and macromolecules
  • Interacts with proteins and lipids
  • Interacts with Vitamin E for membrane stability, recycling nutrients

Vacuoles

  • Stores nutrients, waste, and water
  • Requires enzymes made of proteins

Cytoplasm

  • Gel-like fluid where many reactions occur
  • Site for glycolysis (glucose breakdown)
  • Contains dissolved nutrients, enzymes, and ions

Chloroplasts (plant cells only)

  • Site of photosynthesis
  • Makes glucose from sunlight
  • Requires carbon dioxide, water, and light
  • Interacts with minerals like magnesium in chlorophyll

Cell Membrane

  • Regulates what enters and exits the cell
  • Composed of lipids and proteins
  • Uses minerals like sodium, potassium, and calcium to maintain ion balance, which is important in nerve and muscle cells
  • Allows the transport of glucose, amino acids, and fatty acids

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