Question

honors exit ticket (photosynthesis)

1. what are the pores on the underside of leaves called and what are their purpose?

a. xylem; gas exchange c. phloem; gas exchange
b. stomata; gas exchange d. cuticle; gas exchange

1. roots collect water for photosynthesis. the tissue involved in transporting water is called

a. mesophyll c. phloem
b. xylem d. stomata

1. why do leaves tend to be flat?

a. so water can easily be absorbed and carried to the rest of the plant
b. so that sunlight can easily penetrate the leafs photosynthetic tissues
c. so that nutrients can easily enter the plant and be used for structure and support
d. so that plants can easily find balance due to their symmetrical nature of their branches
e. so that carbon dioxide can easily leave the plant

1. which kind of organisms does not do photosynthesis?

a. plants c. some fungus
b. some bacteria d. some protists

1. the process of converting light energy into carbohydrates (chemical energy) is called

a. respiration c. digestion
b. photosynthesis d. transpiration

1. what pigment absorbs the sunlight in the process of photosynthesis?

a. carotenoids c. chrysocolla
b. chlorophyll d. cobalt

1. what are the cells/tissue called that do most of the photosynthesis in the leaves of plants?

a. epidermis c. xylem
b. palisade mesophyll d. phloem

1. structure b is the

a. inner membrane c. thylakoid
b. outer membrane d. stroma

1. structure a is the

a. inner membrane c. thylakoid
b. outer membrane d. stroma

1. which section of the leaf cross section consists of cells that contain chloroplast and do photosynthesis?

a.
b.
c.
d.

Explanation:

1. Stomata are the pores on the underside of leaves for gas exchange. Xylem transports water, phloem transports nutrients, and cuticle is a protective layer.
2. Xylem is the tissue that transports water in plants. Mesophyll is involved in photosynthesis, phloem transports nutrients, and stomata are for gas exchange.
3. Leaves are flat to allow sunlight to penetrate the photosynthetic tissues (mesophyll) easily. Other options are incorrect as they don't relate to the main function of leaf flatness for photosynthesis.
4. Fungi do not perform photosynthesis. Plants, some bacteria (like cyanobacteria), and some protists (like algae) can do photosynthesis.
5. Photosynthesis is the process of converting light energy into chemical energy (carbohydrates). Respiration is the opposite (breaking down carbohydrates for energy), digestion is in animals, and transpiration is water loss.
6. Chlorophyll is the main pigment that absorbs sunlight for photosynthesis. Carotenoids are accessory pigments, chrysocolla and cobalt are not relevant plant pigments.
7. Palisade mesophyll cells contain a lot of chloroplasts and do most of the photosynthesis in leaves. Epidermis is a protective layer, xylem and phloem are for transport.
8. Assuming the diagram (though not fully clear) - if it's a chloroplast diagram, the inner membrane (if structure B is the inner one) - but without seeing the full diagram context precisely (but based on standard chloroplast structure labels in many textbooks where inner membrane is a key part).
9. Similarly, if structure A is the outer membrane (as per standard chloroplast diagrams where outer membrane is the outermost layer).
10. The palisade mesophyll (assuming section B in the leaf cross - section diagram, as palisade mesophyll has chloroplast - rich cells for photosynthesis.

Answer:

1. B. Stomata; gas exchange
2. B. Xylem
3. B. So that sunlight can easily penetrate the leaf's photosynthetic tissues
4. C. Some fungus
5. B. Photosynthesis
6. B. Chlorophyll
7. B. Palisade Mesophyll
8. A. Inner membrane
9. B. Outer membrane
10. B