1st variant
Part 1. Choose one correct answer ( 22 points)
1. The vegetative organs of a plant include: a) a shoot and a root; b) a shoot and a fruit; c) a flower and a fruit.
2 The main parts of a flower are: a) petals; b) petals and sepals; c) pistil and stamens.
3.Fruit-strups are formed in: a) peas, beans; b) peas, beans, cabbage, ramekin; , ramekin; c) cabbage, ramekin.
4. During photosynthesis, a plant absorbs from atmospheric air: a) oxygen; b) carbon dioxide; c) nitrogen; d) oxygen and carbon dioxide
5. Breathing of a plant in darkness: a) does not stop; b) is suspended; c) occurs more vigorously than in light.
6.The perianth is called a double perianth if it: a) has petals in two rows; b) has petals and sepals in two circles; c) has a calyx and a corolla; d) has a green calyx and a white corolla.
7. Flowers of plants have: a) only one pistil; b) one or more pistils (sometimes many); c) only two or three pistils.
8.A monogamous plant is a plant in which: a) flowers are sexless; b) flowers are separate and are on the same plant; c) flowers are separate: pistillate flowers on some plants and staminate flowers on others.
9.In an inflorescence “cob”, the female flowers are located on: a) a common expanded pedicel; b) a common expanded axis of the inflorescence; c) on top of the expanded axis of the inflorescence.
10.The fruits of the dandelion are spread by: a) wind; b) animals; c) meltwater.
11. The shell of a plant cell includes: a) starch b) cellulose c) chitin d) fats
12. The cytoplasm in a cell: a) has a protective function b) gives it shape c) participates in division d) carries out communication between organoids
13. Cambium is a) mechanical b) covering c) conducting d) educational
14. Vessels and sieve tubes are the tissue: a) mechanical b) covering c) conducting d) educational
15. Roots growing from the main root are called: a) adventitious b) lateral c) aerial d) root hairs
16. What is a bud? a) a modified shoot b) part of a stem c) organ of a plant d) rudimentary shoot
17. Root division zone is formed by a) covering tissue b) conducting tissue c) educational tissue d) basic tissue
18. The generative bud develops from: a) flower b) shoot c) leaf d) root
19.Root hairs are located in the area of: a) absorption b) conduction c) growth d) division
20. Which plants have such a modification of the stem as a bulb? a) couch grass b) topinambur c) narcissus d) peas
21. Lentils perform the function: a) protect from dust b) participate in gas exchange c) slow evaporation of water d) protect from bacteria
22. The leaf vein does not include: a) vessels b) sieve tubes c) mechanical fibers d) stomata
Part 2. In the sentences, write the appropriate words instead of dots. ( 14 points )
1. A plant gets water from the soil through its root and …2. All the roots of a plant make up its …
3. Roots that grow from the stem are called …4. If the main root does not develop or is not distinct from the many other roots of the plant, the root system is called …
5. The main root and adventitious roots develop … roots 6. The dark coloring of the soil depends on the presence of …7. The root grows in length its …8. The plucking of the root tip when young plants are planted is called …9. The root tip is covered with …10. Under the sheath is an area (zone) …11. The long outgrowth of the outer root cell is called …12. Above the suction zone is a zone …13. In the root conducting zone, tissue called … 14. The strength and elasticity of the root is provided by a tissue called ….
Part 3. Sketch three inflorescences, indicate their features and give an example of a plant ( 12 points)
A total of 48 points. “5” – 43 – 48 б. “4” – 32 – 42 points “3” – 16 – 31 points
Semiannual control work. 6th grade
2 variant
Part 1. Choose one correct answer ( 22 points)
1.A shoot consists of a) a flower and a fruit; b) a stem with leaves and buds; c) a stem and a root.
2 Any simple leaf has a) a leaf blade and base; b) a leaf blade, base, and petiole; c) a leaf blade and petiole.
3.Fruit-berries are formed in: a) tomato, potato, grape, blueberry; b) strawberry, strawberry, raspberry; c) plum, cherry, apricot
4.In aquatic plants, such as water lilies, stomata are: a) on the upper side of the leaf; b) on the lower side of the leaf; c) on the edges of the leaf that protrude above the water.
5.Photosynthesis releases: a) oxygen; b) carbon dioxide; c) nitrogen and carbon dioxide into the atmosphere.
6.When breathing, a green plant absorbs: a) nitrogen; b) oxygen; c) carbon dioxide; d) oxygen and carbon dioxide
7.Flowers with a simple perianth have: a) only a corolla; b) only a calyx; c) neither: all leaflets are the same.
8. Stamens and pistils are: a) in every flower: b) not in every flower: there are only pistillate and only staminate flowers; c) not in every flower: there are flowers without stamens and pistils.
9.Inflorescence-brush is a set of flowers, which: a) have long pedicels, departing from the top of the shoot; b) have clearly visible pedicels, departing from a long common axis. c) do not have pedicels, but are located on a long common axis.
10.Endosperm is: a) part of the seed germ; b) seed tissue with a supply of nutrients; c) part of the seed germ in monocotyledonous plants and seed tissue in dicotyledonous plants.
11. Vacuole is: a) an organoid of the cell b) a substance that gives strength to the cell c) the coloring substances of the cell d) a cavity filled with cell sap
12. The significance of the nucleus in the cell: a) has a protective function b) gives it shape c) participates in division d) makes connections between organoids
13. What kind of tissue has a protective function? a) mechanical b) covering c) conducting d) educational
14. Which tissue carries nutrients? a) mechanical b) covering c) conducting d) educational
15. What function does not the root fulfil? a) fixes the plant in the soil b) absorbs water and mineral salts from soil c) deposits nutrients in the reserve d) forms organic substances from inorganic ones
16. Germinal roots of seeds develops from germinal root b) lateral roots c) adventitious roots d) aerial roots
17. A vegetative bud consists of: a) a petiole and a leaf plate b) an embryonic bud c) an embryonic stem and leaves d) a stem with buds
18. Sessile leaves have no: a) leaf lamina b) petiole c) veins d) stomata
19. Root sheath: a) ensures the movement of substances through the plant b) has a protective function c) gives the roots strength d) participates in cell division
20. Plucking the tip of the root when transplanting young plants is called: a) grafting b) perching c) picking d) cuttings
21. The growth of the stem in thickness comes at the expense of the cells:
a) bark b) cambium c) heartwood d) wood
22. What is the biological significance of inflorescences? a) small unsightly flowers become visible b) produce more pollen c) better attract insects d) all of the above
Part2. In the sentences, write the appropriate words instead of dots. ( 12 points ) 1.A shoot is a stem with leaves and …. on it. 2.The sections of the stem between the two nearest nodes of the same shoot are called…. 3. The angle between a leaf and the internode above it is called a …leaf. 4. There is usually a … bud.5. The buds that develop on the internodes, leaves, and roots are called ….. 6. On the shoots of trees and shrubs, a leafy …. is visible under each bud after leaf fall. 7. The buds are covered on the outside with kidney …. 8. There is a rudimentary stem in the central part of the bud, and on it …. 9. The bud is called a rudimentary …. 10. Buds can be vegetative and …. 11. generative buds develop shoots with …. 12. If a shoot elongates due to active reproduction and growth of the internode cells, this growth of the shoot is called …
Part 3. Sketch a flower and sign all its parts. ( 14 points)
A total of 48 points. “5” – 43 – 48 б. “4” – 32 – 42 points “3” – 16 – 31 points
