plant test

Which of the following correctly describes how a diagram of cellular respiration would differ from a diagram of photosynthesis?

The cellular-respiration diagram would show glucose as the main sources of energy.

How has the seed dispersal method developed by these plants given them a reproductive advantage?

The method ensures that offspring will be dispersed and reduces competition for resources.

Adder's tongue fern, Ophioglossum vulgatum, has 120 chromosomes in the gametophyte (N) stage, how many chromosomes would be present in the sporophyte (2N) stage.

240

Compared to annual rings of trees that have experienced years of sufficient rainfall, the annual rings of trees that have experienced a dry period will

Be thinner

In the experiment shown, bubbles of gas are seen to be formed when pondweed photosynthesizes. How may the rate of photosynthesis be increased?

By adding more light

What process worked most directly with the transport system to heal the wound?

Cellular reproduction

Copper is a micronutrient that can be found in soil. Copper is important for reproductive growth in plants and plays an indirect role in chlorophyll production. Which statement correctly describes the interaction that occurs between the root and the shoot systems of plants to allow reproduction to occur?

Copper that is absorbed by the roots is transported to the reproductive tissues by the shoot system.

What do phototropism and hydrotropism enable plants to do?

Grow toward needed resources

How is the cactus adapted to survive long, dry periods in a desert?

Its stems swell and store water.

What is the solution that tests for starch?

Lugol's iodine

How do the plant systems work together to make this movement of liquid possible?

The roots absorb water and minerals and move them up to the stem, while the stem moves food produced in the leaves down to the roots in tiny tubes.

If a potted plant is kept in darkness for 48 hours, all starch in its leaves should have been converted to sugars and conducted out of the leaves. This is de-starching. To understand that photosynthesis has taken place the plant needs to be placed in light and again tested for starch. If starch is present what color would the leaf turn after the test solution has been added?

blue-black

If a plant needed to transport the food produced in the leaves down to the roots, which part of the vascular bundle would be involved?

phloem

Plant hormones serve as chemical messengers between cells and tissues. Auxin is a plant hormone that causes the cells on the shady side of a plant shoot to elongate. The response enabled by auxin is known as -

phototropism

Changes in water pressure within guard cells cause the cells to open or close the stoma. This response helps the plant maintain homeostasis by -

regulating the amount of water the plant loses during transpiration

Pollen in plants is most similar to which type of cell in humans?

sperm

Leaves are part of a plant's shoot system. The phloem tissue in leaves transports -

the glucose produced during photosynthesis

Leaves are part of a plant's shoot system. The xylem tissue in leaves transports

the water and minerals that are absorbed by the roots

Which of the following best describes the interaction that occurs between a plant's reproductive parts during self-fertilization?

Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary, where the sperm fertilizes the egg.