Bio 101 LAB EXER 1

BIO 101 LAB EXER 1 Pictures from Alliza Andal & Alyssa Maliwat

BS BIOLOGY BLOCK 1

#TIWALA #PUSO #KAYAMOYAN

#MAHALMOANGBIOLOGY

A. Plant Hair Squash Cucurbita maxima

-single hair of squash

Find (on basal cell hair)

- Cell wall

- Nucleus

- Cytoplasm

- Vacuome

- Plastid

B. Plastids Hydrilla

Moving chloroplast

Find:

- Cell wall

- Nucleus

- Chloroplasts

- Direction of flow

- Rate of flow

B. Plastids Tomato skin

Chromoplasts

Find:

- Size chromoplasts

- shape of chromoplasts

- Presence of spaces between walls

- Pigments (and location)

Bell Pepper

Chromoplasts

B. Plastids Tomato pulp

Chromoplasts

Find:

- Arrangement of cells

- Size chromoplasts

- shape of chromoplasts

- Presence of spaces between walls

- Pigments (and location)

B. Plastids Carrot pulp

Chromoplasts

Find:

- Describe variation in size and shape of the chromoplasts

- Size chromoplasts

- shape of chromoplasts

- Presence of spaces between walls

- Pigments (and location)

B. Plastids Boat of Moses [alternative for beet pulp]

Find:

- Pigments

- Location of pigments

B. Plastids Red flower

Find:

- Shape of the cells

- Presence of chromoplasts?

- Presence of additional pigments?

B. Plastids Yellow flower

Find:

- Shape of the cells

- Presence of chromoplasts?

- Presence of additional pigments?

B. Plastids Purple flower

Find:

- Shape of the cells

- Presence of chromoplasts?

- Presence of additional pigments?

B. Plastids Blue Flower

Find:

- Shape of the cells

- Presence of chromoplasts?

- Presence of additional pigments?

C. Ergastic Substances Potato cells

Find:

- Location of the starch grains

- Cell wall

- Hilum

- Eccentric layers

C. Ergastic Substances Bean Cotyledon

Find:

- Location of the starch grains

- Cell wall

- Hilum

- Eccentric layers

C. Ergastic Substances Corn endosperm

Find:

- Location of the starch grains

- Cell wall

- Hilum

- Eccentric layers

C. Ergastic Substances Rice

Find:

- Location of the starch grains

- Cell wall

- Hilum

- Eccentric layers

C. Ergastic Substances Banana fruit

Find:

- Location of the starch grains

- Cell wall

- Hilum

- Eccentric layers

C. Ergastic Substances Plant Crystals Druse

- Specimen used:

- Type of crystal:

C. Ergastic Substances Plant Crystals Raphide

- Specimen used: Dumbcane

- Type of crystal:

C. Ergastic Substances Plant Crystals Styloid

- Specimen used: Buntot tigre

- Type of crystal:

C. Ergastic Substances Plant Crystals Prismatic

- Specimen used:

- Type of crystal:

C. Ergastic Substances Plant Crystals Sand

- Specimen used:

- Type of crystal:

C. Ergastic Substances Plant Crystals Cystolith

- Specimen used:

- Type of crystal:

Study Questions (from Lab Manual)

A. Define:

1. Protoplast

2. Protoplasm

3. Cytoplasm

4. Hyaloplasm

5. Cytosol

6. Vacuome

7. Crystals

B. What environmental factor affects the orientation of the chloroplasts?

C. What may be the physiological significance of cytoplasmic streaming?

D. What are the major types of pigments? Give examples for each.

E. What is the significance of crystals?