Skip to main content

Featured post of Today

5 science myths that we all fall for

 5 Science Myths:🌿 Science is truly an interesting discipline with many fascinating facts..... However, allot of misinformation is spread on the internet and today we are going to debunk some myths 1)  We Only Use 10% of the Brain - That statement itself is utterly wrong, and science itself denies of it. Brain scans show that we virtually, use almost every part of the brain. Each part of the brain has an individual function.    The 10% brain usage  myth is pure fiction. 2) You should drink 8 glasses of water everyday - That´s a myth, everybody is unique in their own way based on: gender, height, age or weight. Therefore, the amount of water that needs to be consumed varies greatly from person to person.  3) Sugar makes kids hyper - Allot of people associate sugar with boosted activity and extraordinary energy. This is wrong as multiple studies have shown that their is no link between sugar and hyperactivity. The excitement is often situational and not caus...
1 comment

 Biology 0610 IGCSE: Transport in Plants Questions that will help you ace the exam💖

  So, this blog will address a few questions regarding the biology IGCSE topic: transport in plants. Hopefully, this will help you prepare for the easiest and hardest questions that can appear in your exam. 😀 If you have any further questions regarding this topic, please comment down below.
  • Keep in mind that you should also prepare for the past paper exams available online to effectively prepare for the exam.
  • Comment below on any other subjects you want me to cover in this regard.

Question 1: Explain the mechanism for the movement of water in the xylem vessels.

(Difficulty: Medium) Ans: 💬

When the water evaporates from the areas of the plants, there will be less water in the xylem vessels present on top. So, therefore, the top xylem vessels would create a force (transpiration pull) to pull water up from the bottom xylem vessels. Due to this, the water molecules move with the help of cohesion and adhesion forces in between the water molecules and the xylem vessels.
 
The following one is a very common question (it is often paraphrased),
 
Q: State the features of palisade and spongy mesophyll cells that help them contribute to photosynthesis.
Ans: Palisade Mesophyll cells are arranged end to end, which means that the walls are touching together. This generally helps them to perform maximum photosynthesis as the chloroplasts are near the cell wall.
Example: Do not make diagrams as answers in the IGCSE Biology paper. This diagram is just for your understanding.
 
 


Spongy mesophyll cells have a large surface area so as to exchange gases like CO2 and O2.
 
They also help in the evaporation of water vapor from the area of the plants.
 
Q: What characteristics of xylem vessels help them efficiently perform their function?
Ans: Xylem vessels are made up of dead cells and have no end walls of nucleoplasm; this generally helps them to ensure that the water moves without hinderance in the xylem vessels. Secondly, the xylem vessels have lignin deposited on them to keep the plant upright so as to support the petiole. Likewise, they also have pits to remove air bubbles.
 
NOW: I will give you some questions to do and will upload the answers in the next blog.
Surely, you can refer to the notes on biology that I uploaded previously to derive your answers. If you have any questions, feel free to ask them in the comment down below💬
 
Q: Describe some features of the phloem tissues and explain how their characteristics complement the features.
Q: How does the plant respond to hot and dry conditions?
Q: If the humidity increases, what effect would it have on the rate of transpiration?
Q: Different parts of the plants act like the source and the sink throughout the year. Why is that so?
 
Okay, that's it for today. Keep sparkling and shining throughout your day. 💖
Side Note: You can do this👍










Labels:

Comments

Post a Comment

Popular posts from this blog

Alzheimer´s Disease Simplified

   What is Alzheimer´s Disease ? A disease associated with the brain that causes memory loss and changes in behavior / thinking of an individual. What causes the disease? -  Two harmful proteins known as amyloid  plaques and tau tangles builds up in the brain adversely, affecting the neurons in the brain(neurons are specialized cells in the brain that help in communication, thinking , remembering and learning). - The probability of a person being affected by the disease increases with age, alongside other risk factors like: genes or even a persons lifestyle.  What are some symptoms ? - Forgetting recent events or familiar names - Finding it hard to do every day tasks - Changes in mood or behavior  - Getting lost in familiar places  Although there is no concrete cure available there are many treatments that can slow down it´s effect. An example of which is "Cholinesterase Inhibitors", essentially they prevent breakdown of a chemical known as acetyl...
10 comments
Read more

Protein Folding

  Why does the shape of a protein matter? -  To build a brick building you need all bricks to complement each other .....to scaffold upon each other to make a strong structure. Just like that amino acids, which are the small bricks that make protein need to arrange in a certain manner to make certain proteins. How does protein folding occur?😮 As mentioned above proteins are made when amino acids are arranged in a certain manner in long chains. These chains -ofcourse have to fold to make up a protein shapes. This happens spontaneously and due to repulsion between amino acids and watery environments in the cells. Cells help the protein to fold with the help of chaperone proteins ( chaperone of course after the drivers of the process). These proteins help to prevent misfolding . Why does it even matter?🧐 The type of shape that the protein has determines its functions. - It can act as an enzyme. - It build up hair or nails . - It can be used to transport oxygen in the blood thro...
3 comments
Read more

Can Algae be used as a biofuel?

   In a  world  that's continuously  evolving , one of the most  prominent   issues  that's  getting  increasingly  pivotal  for the  world  to solve  is fossil fuels depletion . Although, we've  learned  about the  climate   extremity  in  detail  when young , the  world  seems to  turn  a blind   eye  to the  issue at the  moment. Numerous  renewable methods  like solar, wind and wave  energy   are  being   used  due to their sustainability   benefits . S till , these methods  themselves might  be   too  expensive  or  occasionally ,  have  environmental  consequences . T hus , today  I  bring  to you another  strong   contender  in this  race:   ALGAE What are Algae??? - Algae are a  group  of ...
5 comments
Read more