Class notes
EXAM NOTES
- Institution
- University Of South Africa (Unisa)
Lecture notes study book Biology of Plants and Animals of Frank Schaffer Publications - ISBN: 9780822409113 (EXAM NOTES)
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
Seller
Follow
Content preview
BLG1502 PAST PAPERS Long Questions 2017- 2012 CREATED BY RICHELLE LAMBERTG- Glossary TB- Textbook SG- Study guide * indicates amount of times asked before
2016 NOV
What is photosynthesis? G26 TB260 + SG61
• The conversion of light energy to chemical energy
• that is stored in sugars (glucose)
• or other organic compounds
• it occurs in plants , algae
• and certain prokaryotes
• It nourishes almost the entire living world directly/ indirectly
• It is not a single process but two processes
• Called light reactions (photo) and Calvin cycle (synthesis)
• It is the means by which energy in sunlight
• becomes usable to living things
Are plants more important to people or are people more important to plants. SG p 61
• We could argue that plants are more important to people
• because we subsist on plants
• We consume them
• and are higher up in the food chain
• Many plants have been domesticated by people
• and require people to be able to actually disseminate their seeds
• For example corn
• In the case of domesticated plants
• people are just as important
• to their survival as we are to theirs
**Distinguish between pollination and fertilisation G14&27 + TB 697& 1058 + SG73
• Pollination –is the process whereby pollen grains
• move from the anther
• to the stigma on a flower’s style
• it precedes fertilisation
• and depends on such media
• as wind, water and insects
• takes place externally
• Fertilisation –is the fusion of the male gametes
• and female egg cells
• to form a new plant seed`
• occurs in the inside of the flower
• and does not depend on external vectors.
*****Name the five characteristics that define land plants SG22-23
• Common to all 4 groups but absent in charophyceans
• Apical meristem
• Alternation of generations
• Multicellular dependent embryos
• Spores produced in sporangia
• Multicellular gametangia
****Describe the binomial system of classification TB524
• Part 1 is the name of the genus (plural, genera)
• to which the species belongs
• Part 2 is called the specific epithet
• and is unique for each species within the genus
• Example of a binomial is Panthera pardus (large cat)
• The first letter of the genus is capitalized
• and the entire binomial is italicized
• newly created scientific names are also Latinized
, BLG1502 PAST PAPERS Long Questions 2017- 2012 CREATED BY RICHELLE LAMBERT
G- Glossary TB- Textbook SG- Study guide * indicates amount of times asked before
Are the following scientific names correct? Give reasons SG3
• *Acacia aerioloba - Yes because the scientific name is written correctly
• and the first letter of the genus is written in a capital letter
• both genus and specific are underlined
• *Panthera pardus – No
• The name is spelled correctly
• The first letter is written with a capital letter
• Both genus and specific epithet should be underlined or italicised
• *Ophisaurus ventralis – Yes all rules have been followed
• Homo sapie – No
• The scientific name must be spelt correctly It must be Homo sapiens
Name the hormones of
******Anterior pituitary gland – TB964
• Follicle-stimulating hormone (FSH) • Prolactin
• stimulates mammary gland cells
• Luteinizing hormone (LH) • Growth hormone (GH)
• Stimulate ovaries & testes • stimulates growth & metabolic functions
• Thyroid- stimulating hormone (TSH)
• Stimulates thyroid gland
• Adrenocorticotropic hormone (ACTH)
• stimulates adrenal cortex
*****Gonads
Ovaries (female) - Testes (male)
• Estrogens – stimulate uterine lining growth • Androgens – support sperm formation
• Progestins – promote uterine lining growth
*******Adrenal glands – TB964
• Adrenal medulla – Epinephrine & Norepinephrine
• Raise blood glucose level & increase metabolic activities
• Adrenal cortex – Glucocorticoids raise blood levels
• Mineralocorticoids promote retention of Na+
*****Pineal gland TB964
• Melatonin – participates in regulation of biological rhythms
***Describe how the carbon dioxide is picked at the tissues and deposited in the lungs TB1026/1028
• Co2 produced by the body tissue
• Co2 is carried in blood
• that is produce through cellular respiration
• converted 2 bicarbonate ions
• and protein in reaction catalysed by enzyme carbonic anydrase
• it is transported to the lungs
• in the lungs bicarbonate is reconverted to Co2 & xhaled
***Discuss the process of homeostasis SG97 & TB941
• Homeostasis means “steady state,”
• referring to the maintenance of internal balance.
• In achieving homeostasis, animals maintain a relatively constant internal
• environment even when the external environment changes significantly.
• For example, the human body maintains a fairly constant temperature
• of about 37 (98.6)
• and a pH of the blood and interstitial fluid within 0.1 pH unit of 7.4.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller noluthandondlovu36. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R133,00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67474 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now