L9 Energy in the Cell

Mer Scott
Quiz by Mer Scott, updated more than 1 year ago
Mer Scott
Created by Mer Scott almost 4 years ago
7
3

Description

Objectives: Identify the major energy requirements of a cell Describe the basic structure and function of the mitochondrion Describe the importance of cellular compartments in energy generation Outline similarities and differences between energy generation in animal and plant cells

Resource summary

Question 1

Question
A cell requires energy to... (choose the CORRECT statements.)
Answer
  • make new materials.
  • grow.
  • move.
  • pump ions across membranes.

Question 2

Question
Which statement about compartmentalised energy production is INCORRECT?
Answer
  • Glycolysis occurs in the sER.
  • The citric acid cycle occurs in the mitochondria.
  • Oxidative phosphorylation occurs in the mitochondrial membrane.

Question 3

Question
Cellular respiration releases chemical energy from food using mechanical energy.
Answer
  • True
  • False

Question 4

Question
Which statement about the mitochondria is NOT correct?
Answer
  • Mitochondria contain ribosomes and mitochondrial DNA in their matrix.
  • The mitochondria has two phospholipid bilayers, with specific proteins integrated into these.
  • The mitochondria's inner membrane has cristae to increase surface area and efficiency of organelle function.
  • The mitochondria can change shape, fuse and divide, and form branched networks.
  • Mitochondria are capable of producing all their own necessary proteins.

Question 5

Question
Choose the CORRECT statements about glycolysis.
Answer
  • Glycolysis occurs in the cytosol.
  • Glycolysis breaks down glucose into pyruvate, smaller more manageable units.
  • Glycolysis occurs after the Krebs Cycle.
  • Glycolysis releases energy and electrons.

Question 6

Question
Choose the INCORRECT statement about the Krebs cycle.
Answer
  • It is also known as the Citric Acid Cycle.
  • It uses energy(ATP).
  • It produces electrons for the carried NAD and FAD.
  • It processes pyruvate from glycolysis.

Question 7

Question
Choose the statement about oxidative phosphorylation which is INCORRECT.
Answer
  • Oxidative phosphorylation is the final step of energy generation in a cell, and release the largest amount of energy(ATP).
  • Oxidative phosphorylation is made up of two steps: firstly, chemiosmosis, followed by an electron transport chain.
  • Oxidative phosphorylation moves H+ up its concentration gradient, where it is used to make ATP in the protein ATP synthase.
  • Oxidative phosphorylation occurs in the intermembrane space within the mitochondria.
  • Oxidative phosphorylation uses electrons from NADH and FADH.

Question 8

Question
The concentration gradient over the mitochondria's membrane is used to generate ATP.
Answer
  • True
  • False
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