Question

1. some organisms, called, can get their energy directly from sunlight energy.

a. autotrophs
b. heterotrophs

1. in what organelle does photosynthesis occur?

a. chloroplast
b. mitochondria
c. nucleus
d. cell membrane

1. the process of photosynthesis ultimately converts light energy into

a. chemical energy
b. electrical energy
c. mechanical energy
d. nuclear energy

1. which part of the plant plays a major role in the process of photosynthesis?

a. stem
b. leaf
c. root
d. trunk

1. where does the energy for photosynthesis come from?

a. sunlight
b. water
c. soil
d. fertilizer

1. what color is the pigment chlorophyll?

a. red
b. orange
c. yellow
d. green

1. what is considered a waste product in photosynthesis? (exits through stomata)

a. nitrogen
b. carbon dioxide
c. oxygen
d. phosphorous

Explanation:

1. Autotrophs are organisms that can produce their own food using sunlight (photosynthesis) or inorganic substances (chemosynthesis). Heterotrophs rely on consuming other organisms for energy.
2. Chloroplasts contain chlorophyll which is essential for photosynthesis. Mitochondria are for cellular respiration, nucleus contains genetic material, and cell membrane is for protection and transport.
3. Photosynthesis converts light energy (from sunlight) into chemical energy (glucose).
4. Leaves have a large surface area and contain chloroplasts (in mesophyll cells) which are key for photosynthesis.
5. Sunlight is the primary energy source for photosynthesis. Water is a reactant, soil and fertilizer provide nutrients but not energy for the process.
6. Chlorophyll reflects green light and absorbs other wavelengths (like red and blue).
7. During photosynthesis, oxygen is produced as a by - product (from the splitting of water molecules) and exits through stomata.

Answer:

1. A. Autotrophs
2. A. Chloroplast
3. A. Chemical Energy
4. B. Leaf
5. A. Sunlight
6. D. Green
7. C. Oxygen