MYTUTOR SUBJECT ANSWERS

656 views

what factors effect the rate of transpiration?


1) Wind- strong winds blow the evapourated water away from the leaf so that when it condenses, it will not go back into the leaf via the stoma

2) Temperature- high temperatures lead to higher rates of transpiration as water will evapourate from the spongy mesophyll cell and diffuse out of the open stomata down a concentration gradient

3)Humidity- High levels of humidity (atmospeheric water vapour) in the atmosphere will decrease transpiration rate because there will be a lower concentration gradient between inside and outside of the leaf for the water vapour to diffuse down into the atmosphere

4) Time of day- In the day when the sun is shining,photosynthesis occurs in sunlight, so there is a higher rate of transpiration because the stomata are open to facilitate gas exchange so the plant can take in CO2, whereas at night, with no sun, no photosynthesis happens so th plat doesn't need to take in CO2 for photosynthesis, so stomata close and therefore water can't leave

Jasmine M. Mentoring -Medical School Preparation- tutor, Mentoring -P...

2 years ago

Answered by Jasmine, a GCSE Biology tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

271 SUBJECT SPECIALISTS

£22 /hr

Neha C.

Degree: Medicine (Bachelors) - Birmingham University

Subjects offered:Biology, Maths

Biology
Maths

“Passionate, patient and pleasant tutor, tutoring students on maths and science subjects.”

£22 /hr

Lucy B.

Degree: Anthropology (Doctorate) - Cambridge University

Subjects offered:Biology, Science+ 5 more

Biology
Science
Maths
Drama
Chemistry
-Personal Statements-
-Oxbridge Preparation-

“Enthusiastic Cambridge grad, with experience in Biology and Maths, passionate about helping students reach their potential and achieve the grades they deserve. ”

MyTutor guarantee

£18 /hr

Katie D.

Degree: Biomedical Science (Bachelors) - Durham University

Subjects offered:Biology

Biology

“Hello, I am just a genuine, patient, friendly person who wants to help other struggling students to understand, enjoy and hopefully succeed in biology.”

About the author

£18 /hr

Jasmine M.

Degree: medicine (Bachelors) - Durham University

Subjects offered:Biology, -Personal Statements-+ 1 more

Biology
-Personal Statements-
-Medical School Preparation-

“First year Medical student at Durham University- tuition in Biology A-level & GCSE, personal statement & medical school applications”

You may also like...

Other GCSE Biology questions

What is active transport?

What is the difference between Areobic and Anaerobic Respriation

Give an example of a negative feedback mechanism in the human body.

Describe how information passes from a relay neurone to a motor neurone. (3 marks)

View GCSE Biology tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok