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09/06/2020 - written exam (corona)

Rolland

  1. Explain flooding stress + how the plants cope with it + hormones involved.
  2. Structure of saponin: which molecule is it + give biosynthesis + possible functions.

Temmerman

Explain why it is true or false:

  1. High altitude residents (like high flying birds) respond to hypobaric hypoxia by increasing the oxygen-binding capacity of hemoglobin while lowlanders decrease the oxygen-binding capacity.
  2. The concept of hormesis says that it is good that your tissues suffer from damage.

13/06/2019 afternoon

Temmerman

- Mutants with no melanopsin or cryptochrome have the same phenotype: they are constantly jetlagged.

- A Sherpa would be a better diver than a lowlander.

Rolland

- Explain water stress. What are the physiological effects and hormones involved? Is it always drought and heat that trigger water stress?

- Explain flooding stress. What are the physiological effects and hormones involved?

- Structure of flavonoids. Explain: class, synthesis and function

11/06/2019 afternoon

Temmerman

- It is for homeotherm endotherms easier to heat up than to cool down. True!

- If the pacemaker membrane theorem is proven to be true, the hyperfunction theorem must be wrong. Not true!

Rolland

- explain cold/freezing stress and adaptations for it

- explain the immune respons in plants and co-evolution of resistance. compare to animals

- structure of Saponin. Explain: class, synthesis and function.

11/06/2019 morning

Temmerman

- An iguana, camel and ground squirel need to pass the desert. Which one will have the highest odds to survive. (Ground squirel)

- High altitude residents are adapted to the limited availability of air due to an increase hematocrit value

Rolland

- Water deficit: which fast and developmental responses. is this kind of stress always related to heat and drought stress?

- Flooding stress: which responses

- Structure of Saponin

14/06/2018 afternoon

Temmerman

- The mutation accumulation theory and the antagonistic pleiotropy theory have the same predictions, therefore they cannot be distinguished from each other experimentally.

- Homovisceous membrane adaptation, Something about the length of membrane fatty acids and how their length alters the fluidity in cold acclimated.

Rolland

- explain cold/freezing stress and adaptations for it

- explain flooding, responses on development and growth, metabolism. Which hormones are involved?

- structure of Lignin. Explain: class, synthesis and function.

12/06/2018 afternoon

Temmerman (she will ask much details)

- In Drosophila the amount of PER drops during the day, in the mammalian clock it rises. (this was TRUE. She asked extra questions such as how light is still perceived without the rods and cones of the retina. what pigment is responsible for this,...)

- Stress is bad for the body, therefore it should be avoided at all times. (She asked a lot of extra things on the optimum of different stressors in the hormesis curve and different adaptations to the GAS model).

Rolland

- explain cold/freezing stress and adaptations for it

- explain the immune respons in plants and co-evolution of resistance. compare to animals

- structure of Saponin. Explain: class, synthesis and function.

15/06/2017 afternoon

Temmerman (written exam only because she could not make it to the exam):

True or false:

- Hyperoxia results in accumulation of HIF-1 and lactate.

- Hans Selye stated that stress responses always consist of three phases.

Rolland:

- Effects of heat stress and strategies against it

- Effects of cold/freezing stress and strategies against it

- Structure of lignin, give name, explain synthesis and function

13/06/2017 morning

Plant part from Rolland:

1 Explain cold and freezing stress, what happens and what are strategies that a plant uses?

2 Explain plant innate immunity and the co evolution of this. Also compare with animals

3 Structure of anthocyanin give: what is it, give synthesis and what does it do?

Animal part from Temmerman (give everything you know about the statement topic, she will ask it anyway):

1 True or false: marine teleosts can only perform osmoregulation due to the functioning of chloride cells and that potassium moves paracellulary between the cells. (False: underlined is wrong).

2 True or false: large mammals will die if they only rely on metabolic water in xeric (dry) enviroments. (True)

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