- 7. The xylem and phloem: a. Compare their stuclure. b. What do they transport? c. Where does the material they transport flow to? 8. Another name for the Dermal tissue is __ 9. What is the difference between adhesion and cohesion? 10. After waking up one morning you go outside and see water on the tip of plants. This is due to __
- Match the following statements with the correct answer. square response to a low blood This hormone is released in volume and concentrated blood, as occurs in dehydration. square is an increasing blood The stimulus for its release glucose level. square hormone initiates labour This posterior pituitary and is involved I with the release of milk from the breast - let down reflex square hormones regulate the These iodine containing 1. oxytocin 2. T3 and T4 3. insulin 4. ADH
- Slide 12 G1 phase, mitosis, S phase, metaphase , telophase, G2 phase, anaphase, prophase Chapter 10 : Cell Growth and Divisi 2. Cell division (2) -Events of the cell cycle: -Interphase:- __ : growth cell and normal metabolism. __ : DNA replication. __ : organelles are replicated. -M phase: __ : __ : longest phase of mitosis.migration of centrioles to opposite poles;formation of the spindle:chromosomes coil more tightly; nucleosome disappears; nuclear membrane disintegrates. __ : chromosomes line up across the center of the cell; microtubules connect chromosome to opposite poles. __ : sister chromatids split becoming chromosomes; these new chromosomes migrate towards the opposite poles. __ : chromosomes decondense nucleosome reappears; nuclear membrane re-forms. __ : cells split into two daughter cells with the same genetic material cleavage furrow (animal cells) or cell plate (plant cells)
- 3. During which trimester do the following events occur. Read Carefully. (14) multicolumn(1)(|c|)( Event ) & Trimester (1,2 or 3 ) lear & leart Starts beating & he body is larger in proportion to the head & atty tissues are deposited beneath the skin & Brain cells are connecting to form more intricate networks & External reproduction ARE distinguished as male or female & Eyelashes form & Contractions felt by the mother signal the onset of labour & Skin appears wrinkled & Nervous system starts to function & External reproduction organs are present but are NOT distinguishable as male and female & The fetus produces urine & The fetus adopts the fetal position & Blood cells and major blood vessels start to form & The head is larger in proportion to the body &
- 9. What is removed during post transcriptional modification? a) Introns b) Exons c) 5'Cap d) Mutations 10. How does a single eukaryotic cell contain an entire genome:worth of DNA? a) Chromatin fibres b) Histones c) Supercoiling d) All of the above
