Mer Scott
Quiz by , created more than 1 year ago

• Describe the structure and functions of the vacuole. • Describe the structure and function of the chloroplasts. • Summarise plastid development and functions. • Outline how cellular functions are partitioned within the cell, using the chloroplast as an example.

6
1
0
Mer Scott
Created by Mer Scott about 7 years ago
Close

L12 Unique plant structures: vacuoles and plastids

Question 1 of 11

1

Fill the blank spaces to complete the text.

The membrane of the vacuole is called the . A young plant cell will have many vacuoles, while a mature plant cell will typically have big vacuole.

Explanation

Question 2 of 11

1

Choose the correct statements about vacuoles.

Select one or more of the following:

  • They are produced by the Golgi and associated endoplasmic reticulum.

  • They regulate cell turgor.

  • They store ribosomes for protein synthesis.

  • They store primary and secondary metabolites.

  • They contain hydrolytic digestive enzymes.

Explanation

Question 3 of 11

1

Secondary metabolites are growth associated.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 11

1

Which of these is not a primary metabolite?

Select one of the following:

  • Inorganic ions

  • Organic acids

  • Sugars

  • Lipids

  • Amino acids

  • Proteins

  • All of these are primary metabolites.

Explanation

Question 5 of 11

1

Choose the incorrect statement about secondary metabolites.

Select one of the following:

  • Latex is a secondary metabolite used to deter insects.

  • Secondary metabolites can be for defense or for signalling.

  • Raphides (crystallised calcium oxalate) are a secondary metabolite used to deter larvae.

  • Aloe contains latex in vacuoles.

  • None of these are incorrect.

  • Vincristine and vinblastine are secondary metabolites used to attract pollinators.

  • Anthocyanin is a secondary metabolite which is a pigment.

Explanation

Question 6 of 11

1

The vacuole can degrade macromolecules and organelles in a process very similar to the lysosomes found in plant cells.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 11

1

Select from the dropdown lists to complete the text.

High concentrations of solutes in the vacuole give it a ( positive, negative ) osmotic potential. This results in water ( uptake, loss ) via osmosis as water moves freely through the tonoplast. The cell wall enables water uptake without ( bursting, loss of rigidity ), creating turgor pressure. ( Loss, Gain ) of turgor pressure results in wilting but will generally not damage the plant in the long term.

Explanation

Question 8 of 11

1

Chloroplast DNA (ctDNA) is linear.

Select one of the following:

  • True
  • False

Explanation

Question 9 of 11

1

Match the plastids to their function:
carry out photosynthesis.
manufacture and store pigments.
store starch/assimilates.
can differentiate into other plastids.

Drag and drop to complete the text.

    Chloroplasts
    Chromoplasts
    Leucoplasts
    Proplastids

Explanation

Question 10 of 11

1

Light reactions take place in the stroma. Dark reactions/the Calvin Cycle take place in the thylakoids/Granum.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 11

1

The oxygen released from photosynthesis comes from CO2 in the Calvin cycle.

Select one of the following:

  • True
  • False

Explanation

Previous
Next